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Vishay’s New Proximity Sensor Offers Power Consumption Down to 6.63 µA

Posted on 10 May, 2021 by mixos

Featuring a VCSEL and Small 1.6 mm Light Hole, Device is Ideal for Consumer and Industrial Applications, Including TWS Earphones and VR / AR Headsets

The Optoelectronics Group of Vishay Intertechnology, Inc. today introduced a new fully integrated proximity sensor designed to increase efficiency and performance in consumer and industrial applications. Featuring a vertical-cavity surface-emitting laser (VCSEL), the Vishay Semiconductors VCNL36825T combines a photodiode, signal processing IC, and 12-bit ADC in a compact 2.0 mm by 1.25 mm by 0.5 mm surface-mount package with a small 1.6 mm light hole.

As compared to previous-generation devices, the newly released proximity sensor offers a 76 % smaller package, while its reduced light hole opening provides increased design flexibility — all at a lower cost. The VCNL36825T’s small size makes it ideal for space-constrained battery-powered applications, such as detecting if users are wearing or not wearing true wireless stereo (TWS) earphones or virtual reality / augmented reality (VR / AR) headsets. With a range of 200 mm, it also provides collision detection in toys and consumer and industrial robots. The proximity sensor features low power consumption down to 6.63 µA to increase efficiency in these applications.

Specifications

Part number: VCNL36825T
Function: PS + VCSEL
Package size (mm): 2.0 x 1.25 x 0.5
Supply voltage (V): 2.64 to 3.6
I²C bus voltage (V): 1.7 to 3.6
VCSEL Driving current (mA): 20
Operating range (mm): 200
Min. Power consumption (µA): 6.63
Proximity resolution: 12 bits

The VCNL36825T supports the I²C bus communication interface for easy access to the proximity signal, while its programmable interrupt function allows designers to specify high and low thresholds to reduce the continuous communication with the microcontroller. The proximity sensor uses intelligent cancellation to eliminate cross-talk, while a smart persistence scheme ensures accurate sensing and faster response time. The VCSEL wavelength peaks at 940 nm and has no visible “red-tail.”

The device offers excellent temperature compensation from -40 °C to +85 °C, and a Moisture Sensitivity Level (MSL) of 3 — in accordance with J-STD-020 — for a floor life of 168 hours. The sensor is RoHS-compliant, halogen-free, and Vishay Green.

Samples and production quantities of the VCNL36825T are available now, with lead times of eight to 12 weeks for large orders.

How to multiplex a 1-Wire master into numerous channels

Posted on 10 May, 2021 by mixos

This is an app note from Maxim Integrated on using only one 1-wire master on multiple 1-wire channels.

1-Wire® networks are originally designed for communication with a single 1-Wire master and numerous 1-Wire slaves on a single 1-Wire bus. Preferably, a linear topology, which contains insignificant stubs, is best for a 1-Wire network. However, a star topology, which contains long stubs, is often unavoidable, and makes it more difficult to determine the effective limitations. A method to eliminate these difficulties is to break up a star topology into numerous channels by using an analog multiplexer (mux). Advantages of using numerous channels include accelerating individual 1-Wire slave access time, improving network robustness, and mixing overdrive-only slaves with standard/overdrive slaves on different channels. These advantages can be gained while still having a single 1-Wire master.

How to multiplex a 1-Wire master into numerous channels – [Link]

Würth Elektronik presents its Bluetooth module Proteus-III-SPI

Posted on 10 May, 2021 by mixos

Würth Elektronik introduces the Proteus-III-SPI Bluetooth Low Energy 5.1 module. This variant of the tried and tested Proteus-III uses an SPI instead of a UART interface. The new module, based on the Nordic Semiconductor nRF52840 chipset, exploits the possibilities of the Bluetooth Low Energy 5.1 standard—with significantly higher performance. With a payload of up to 964 bytes, the module offers four times the throughput of most Bluetooth low-energy modules. As the SPI allows a significantly higher data rate than the UART, with 1.5 times the end-to-end data throughput, the SPI variant bypasses potential bottlenecks on the application side.

The Proteus-III-SPI variant—identical in terms of hardware—is the first choice for applications in which no free UART interface is available, or if the data throughput of the UART interface is insufficient. Another advantage: The SPI variant is more power efficient. The integration workload is slightly higher with SPI, but Würth Elektronik provides a convenient wireless connectivity software development kit (SDK) for this task.

With its Bluetooth module, measuring just 8 x 12 x 2 mm, with integrated antenna, encryption technology and six configurable IO pins, Würth Elektronik offers an interesting solution for IoT and M2M applications in radio-based maintenance interfaces and sensor networks. A special feature of the innovative Würth Elektronik solution: Proteus-III-SPI offers a good alternative to the SPP (Serial Port Profile) mode for serial data transmission, which is no longer included in the standard, but is extremely useful for industrial applications. A long-range mode is included. Proteus-III-SPI is now available ex-stock without a minimum order quantity.

Fibocom’s MA510 Module to Support 450 MHz LTE-M and NB-IoT Application

Posted on 10 May, 2021 by mixos

Fibocom, a global leading provider of IoT (Internet of Things) wireless solution and wireless communication modules, announced that its LTE Cat M module MA510-GL supports 450 MHz spectrum to further satisfy the need for the global IoT market, promoting the allocation of the 450 MHz band.

The 450MHz spectrum has risen in importance in recent years, as it provides a broader scope of connectivity at a lower cost for network users. According to the Mobile IoT Deployment Map of GSMA, both LTE-M and NB-IoT are widely deployed around the world, especially in Europe and America. Based on Qualcomm platform, Fibocom MA510 module is a high-performance IoT module not only supporting 450 MHz but also LTE Cat M1/Cat NB2/EGPRS, which is fully compliant with 3GPP Release 14. Besides, with built-in GNSS, MA510 is pin-to-pin compatible with Fibocom LTE Cat M module 510 family, allowing customer to immigrate easily between different technologies without hardware changing.

With small size and ultra-low power consumption, rich set of internet protocols, industry-standard interfaces and other features, MA510 is suitable for IoT industry applications such as smart metering, asset tracking, smart parking, smart home, wearable devices, wireless POS, etc.

Up to now, Fibocom’s MA510 LTE Cat M module has certified by FCC/ PTCRB/ CE-RED/ GCF/ IC/ RCM/ JATE/ TELEC/ Anatel/ NCC, and obtained telecom operators’ certifications such as AT&T, Sprint, KDDI, Vodafone, Deutsche Telekom, etc.

Axiomtek Releases the 10.4” and 12.1” Touch Panel PCs – GOT710S-837 and GOT712S-837

Posted on 10 May, 2021 by mixos

Axiomtek – a world-renowned leader relentlessly devoted in the research, development, and manufacture of series of innovative and reliable industrial computer products of high efficiency – is pleased to introduce the GOT710S-837 and GOT712S-837, the EN 50155 and EN 45545-2 certified 10.4-inch and 12.1-inch fanless touch panel PCs for train control and rail signaling. Featuring sunlight-readable technology and auto-dimming function, the GOT710S-837 and GOT712S-837 are readable even under intense sunlight and in dark environments. Both transportation-certified panel PCs have an IP65-rated aluminum front bezel for dust-proof plus water-resistant; furthermore, they have a full range DC power input from 24 to 110 VDC and an extended operating temperature range from -40°C to +70°C. For safety concerns, they also can endure a 20ms power interruption (EN 50155 Class S3) from an unexpected power outage. The GOT710S-837 and GOT712S-837 are specifically designed to serve the complex needs of the railway industry and operate reliably under extreme conditions such as major temperature fluctuations and vibration.

The GOT710S-837 and GOT712S-837 are powered by the quad-core Intel® Atom™ processor E3845 (codename: (Bay Trail). The GOT710S-837 has a 10.4-inch SVGA TFT LCD display with a resistive touchscreen and 1000 nits of brightness. In addition, the GOT710S-837 offers alternative keypads on the front bezel for easy control or cleaning purposes. The GOT712S-837 is equipped with a 12.1-inch XGA TFT LCD display with 1024 x 768 resolution and 800 nits of brightness. In addition, both panel PCs have a 4GB onboard DDR3L memory, as well as 16 GB onboard flash and one mSATA port for extensive storage.

Advanced Features:

Sunlight readable 10.4″ SVGA TFT LCD with 1000 nits of brightness (GOT710S-837)
Sunlight readable 12.1″ XGA TFT LCD with 800 nits of brightness (GOT712S-837)
Intel® Atom™ processor E3845 1.91 GHz
Alternative keypad control in the front bezel (GOT710S-837)
M12-type lockable connectors design
Auto-dimming for different environments
-40°C to +70°C wide temperature range
Typical 24 to 110VDC power input, EN 50155 (Class S3) 20ms power interruption protection
EN 50155, EN 45545-2 certified for railway applications

“Axiomtek’s sunlight-readable GOT710S-837 and GOT712S-837 are engineered specifically for use in railway applications such as driver-machine interface (DMI) and rolling stock control systems. Mounted in the locomotive, these fanless rugged touch panel computers provide drivers with improved safety control and optimized decision making based on the collection and analysis of all relevant data,” said Jane Chen, the product manager of TIOT Product PM Division at Axiomtek. “In accordance with strictest safety standards for railway operations, both panel PCs are equipped with M12-type lockable connectors to provide anti-vibration connections and have an IP65-rated aluminum front bezel for liquid spillage and dust ingress protection.”

The GOT710S-837 and GOT712S-837 support a variety of transportation communication protocols to serve the complex needs of the railway industry including two isolated M12 A-coded RS-232/422/485 ports, two isolated M12 X-coded GbE LAN ports, one M12 A-coded USB 2.0 port, one M12 A-coded DC-in, one DB15 audio (line-in/out), one isolated terminal block DIO (6-in/2-out) port and one isolated DB9 CANbus port. For flexible communication, they reserve two PCI Express Mini Card slots for wireless connectivity. Moreover, both panel PCs offer flexible mounting options including wall mounting, VESA mounting and suspension mounting. Windows® 10, 8 and 7 operating systems are also available.

Axiomtek’s GOT710S-837 and GOT712S-837 are available for purchase now. For more product information or customization services, please visit our global website at www.axiomtek.com or contact one of our sales representatives at info@axiomtek.com.tw.

SAPPHIRE Launches Two Ryzen V2000 based SBCs

Posted on 10 May, 2021 by Tope Oluyemi

SAPPHIRE Technology announced a new series of embedded motherboards, which are powered by the latest high-performance AMD Ryzen™ Embedded V2000 processor family built on 7nm process technology, ‘Zen 2’ cores, and high-performance AMD Radeon™ graphics. Called the SAPPHIRE V2000 BP-FP6 and FS-FP6, these embedded motherboards support multiple independent displays in 4K resolution with a stable balance of low power consumption and exceptional performance for the embedded markets. The FS-FP6 Mini-STX board is aimed at electronic gaming machines, medical imaging, interactive digital signage, thin clients, and POS terminals, while the NUC-style BP-FP6 is aimed at mini-PC, kiosk, medical imaging, and interactive signage.

The SAPPHIRE V2000 FS-FP6 5”x 5” (mini-STX) motherboard supports up to four independent 4K displays. Designed for the latest AMD Ryzen™ V2000 FP6 Family APUs with Vega GPU graphics combined with the 6/8-core high-performance “Zen2” CPU, the V2000 FS-FP6 supports up to 64GB dual-channel DDR4-3200 memory, dual Ethernet controllers, M.2 for WiFi and SSD expansion. Its external I/O connectivity includes four DisplayPort 1.4, One USB 3.1 Type-C port, One USB 3.1 Gen 2 port and four USB 2.0 ports. The board enables a TPM 2.0 chip and a chassis intrusion alert feature for security. The board also offers 12-19V inputs and dual power headers in parallel.

The 4”x4” form factor SAPPHIRE V2000 BP-FP6 board is suitable for small form factor, high resolution visual embedded applications. The V2000 BP-FP6 supports up to two 4K displays as well as 64GB dual-channel DDR4-3200 memory, one Gigabit Ethernet port and M.2 for WiFi and SSD expansion. It also offers two HDMI 2.1 with four USB 3.1 ports delivers rich I/O connectivity. The board also enables a TPM 2.0 chip, and a chassis intrusion alert feature for security, as well as 12-19V inputs and dual power headers in parallel.

About AMD Ryzen Embedded products, Paul Smith, senior director of Business Development for Embedded Products at SAPPHIRE says “The AMD Ryzen Embedded products have been an excellent choice for us building platforms with leading performance and features. The V2000 series sets a new standard for embedded designs and allows us to offer the performance to support four independent displays in 4K resolution, while maintaining a secure host connection. We are excited to bring the embedded industry the performance and features from the Ryzen Embedded V2000 series with our new 4×4 and 5×5 motherboards and a Simply NUC mini-PC which is coming soon.”

There is no pricing or availability information right now for the FS-FP6 and BP-FP6. You can find more information on Sapphire’s announcement page, and the FS-FP6 and BP-FP6 product pages.

LIR1220 Battery Charger plugs in USB

Posted on 10 May, 2021 by DM

The LIR1220 is a 12.5 mm. lithium-ion rechargeable coin cell. It is a relatively new technology. Traditionally, li-ion coin cells are non-rechargeable but for some situations, rechargeable compact cells are desired. Coin cells like CR2032 are ultra-compact and are used in a variety of compact systems like wearables and if something with this form factor is made rechargeable, then it can be used for a wide range of small form factor applications. The new LIR1220 offers a high energy density 43Wh/kg and has a half cycle of approximately 500 cycles.

To get an idea about the compactness of the battery, it is 12.5mm in diameter and 2mm thick. In addition, the nominal weight is 1.1g. Due to these advantages, LIR1220 finds its place in applications like wearables, Bluetooth headsets, body sensors, medical devices, wireless sensors, remote controls, toys, networking devices, and many others.

The battery has a nominal voltage of 3.6V and a typical nominal capacity of 12mAh. It must be charged with a Constant-Current-Constant-Voltage (CC/CV) charger. These chargers can supply a fixed current and fixed voltage regardless of the load resistance. The voltage that the battery must be charged is 4.2V (advised by the manufacturer) and the current to supplied while charging should be 0.5C. 0.5C means 0.5 times the battery capacity which in this case is 12mAh. Therefore, the charging current should be 6mA. All this data is crucial in setting the output voltage and current of the battery charger circuit.

Battery charger IC

For charging the battery, we are turning our attention to a linear charge management controller IC, MCP73831. MCP73831 is a very advanced charge management controller for applications where space is a constraint. This small-sized IC is very economical and finds its applications in Lithium-Ion/Lithium-Polymer Battery Chargers, Personal Data Assistants, Cellular Telephones, Digital Cameras, MP3 Players, Bluetooth Headsets, USB Chargers, and many others.

The charge controller IC uses Constant-Current-Constant-Voltage (CC/CV) charging algorithm which is compatible with our LIR1220 battery. The charging voltage can be fixed from four available options: 4.20V, 4.35V, 4.40V, or 4.50V. In addition, the IC also comes with selectable preconditioning and charge termination. Preconditioning means when the battery voltage is less than the preconditioning threshold set, then the IC goes into trickle charging or preconditioning mode. There is an automatic recharge feature present in the IC which will monitor the battery voltage and if it drops below the charging threshold, the battery is charged again. For charging threshold setting, we must consider the discharge cut-off voltage of the battery which is 2.75V. Below this voltage level, when a battery is discharged further, there may be permanent damage to the battery.

The circuit

Source: https://github.com/wagiminator/Power-Boards/blob/master/LIR1220_Charger_MCP73831/LIR1220_Charger_MCP73831_schematic.pdf

When the battery is attached to the IC, the IC sinks 6uA of current from it for detection. Sometimes, it may not detect the battery even it is connected and so in this case before connecting the battery, a 2Mohm resistor must be connected at Vbat (3) pin. The R3 resistor is for setting the charging current. And the STAT (1) pin is for providing the status of charging; when the STAT pin is high, charging is completed and when it’s LOW, the charging is ongoing. C1 and C2 capacitors are the bypass capacitors.

If the R3 is set to a value that provides a current of around 100mA, then we are exploiting the fast-charging feature of the IC. The IC also has an interesting safety feature which is Under-Voltage Lockout; an internal UVLO circuit monitors the input voltage and keeps the charger in Shutdown mode until the input supply rises above the UVLO threshold.

The complete project including BOM and Gerber file can be found at https://github.com/wagiminator/Power-Boards/tree/master/LIR1220_Charger_MCP73831

Easily Scale Across Multiple Processors with Aeon’s GENE-CML5 Subcompact Board

Posted on 10 May, 202110 May, 2021 by Emmanuel Odunlade

Embedded Boards manufacturer, AAEON, some days ago announced the launch of a new embedded development board, the GENE-CML5 3.5, a subcompact board designed for next-generation industrial, and general Edge AI applications where robustness, ruggedness, and increased processing capacity are required.

Designed with an understanding of flexibility and need for scale, unlike the usual fixed, soldered down processor style deployed in most 3.5″ form factor boards, the GENE-CML5 comes with an LGA1200 socket which enables the board to support all sorts of 10th Generation Intel Core i3/i5/i7 processors, as well as Intel® Pentium® and Celeron® processors with up to 4.4 GHz CPU frequency. This flexibility provides developers, solution providers, and end-users with the ability to easily maintain, scale, and upgrade the platform based on their changing requirements.

Designed to bring portability to the edge, the GENE-CML5 comes with 64GB DDR4 memory, which combined with the high CPU frequency it supports, allows users to perform computations at a speed that is on par with what is obtainable in bulkier desktop systems. Asides from processing capabilities, one other key feature for Edge solutions is a remote monitoring and management system and the GENE-CML5 allows users to do this without fuss, leveraging the many advantages of the Intel vPro and Intel Active Management Technology (iAMT).

For easy integration, deployment, and general usage, the GENE-CML5 comes with a broad I/O layout that features; two USB3.2 Gen 2 ports, four USB2.0 ports, and dual Gigabit LAN ports. Display options include DP++, VGA, and LVDS connectors. For storage and expansion/extension of processing capabilities, the board also features an M.2 2280 M-Key slot that can support AI expansion modules snd as well be used for NVMe storage, a PCIe 3.0 (x4) expansion with FPC connector and two SATA III (6.0 Gbps) slots.

Highlight features and specification of the GENE-CML5 as listed on Aeon’s website are provided in the table below:


Form Factor	3.5” SubCompact Board
CPU	Intel® 10th Generation Core™ i7/i5/i3/Pentium/Celeron SoC i7-10700TE (8C, 2.0 GHz, up to 4.4 GHz) i5-10500TE (6C, 2.3 GHz, up to 3.7 GHz) i3-10100TE (4C, 2.3 GHz, up to 3.6 GHz) G6400TE (2C, 3.2 GHz) G5900TE (2C, 3.0 GHz)
CPU Frequency	Up to 4.4GHz
Chipset	Intel® Q470E
Memory Type	DDR4 2933/2666/2400 MHz SODIMM x 2 (Dual Channel, Non-ECC)
Max. Memory Capacity	Up to 64 GB
BIOS	AMI UEFI
Wake on LAN	Yes
Watchdog Timer	255 Levels
Power Requirement	+12V
Power Supply Type	AT/ ATX (Default: AT)
Power Consumption (Typical)	Intel® i7-10700TE, DDR4 3200Mhz 32GB, 4.47A at +12V
Dimension (L x W)	5.75″ x 4″ (146mm x 101.7mm)
Operating Temperature	32°F ~ 140°F (0°C ~ 60°C)
Storage Temperature	-40°F ~ 176°F (-40°C ~ 81°C)
Operating Humidity	0-90% @ 40°C, non-condensing
MTBF (hours)	380,571
Certification	CE/FCC Class A
DISPLAY
VGA/LCD Controller	Chrontel CH7517A
Video Output	DP++ x 1 VGA x 1 LVDS x 1
Backlight inverter supply	Max 12V, 2A
I/O
Ethernet	Intel® i210/i211,10/100/1000Base, RJ45 x1 Intel® i219,10/100/1000Base, RJ45 x1 (Support Vpro only with i5/i7 + Q470/Q470E variant)
Audio	High Definition Audio Interface,Line-in/Line-out/MIC
USB Port	USB3.2 Gen 2 x 2 (Rear I/O, Gen 2 for Q470/Q470E only) USB2.0 x 4 (Pin header)
Serial Port	RS-232/422/485 x 2
SSD	SATA 3.0 x 2 SATA power connector x 1 (+5V)
Expansion Slot	M.2 M Key 2280 PCIe[x4]/SATA[x1] x 1 PCIe[x4] x 1 (through Flexible Printed Circuit interface, Q470/Q470E only) I2C, SMBUS (Default as I2C, SMBUS selected by board)
DIO	8 Bit
SIM	—
TPM	TPM2.0
Touch	—

The GENE-CML5 is currently available for sale on Aeons website for $325 and like all Aeon’s products, OEM/ODM services are supported and users can request for the board to be customized the way they need with different modifications, including I/O layouts, possible..

More Information on the board, its specifications, modification options, and sales options can be found on the product’s page on Aeon’s website.

Meet the ATMegaZero ESP32-S2 Based Development Board With RPI Zero Form Factor

Posted on 10 May, 2021 by Emmanuel Odunlade

Despite the recent release of the C3 and S3 versions, the ESP32-s2 has remained a fan favorite with more development boards and projects based on it, being released every now and then. One of the latest boards based on it is the ATMegaZero ESP32-S2 board developed by Espinal Lab.

Modeled after their Raspberry Pi Zero form factor-based, Arduino Leonardo Compatible, ATMegaZero board that was released last year, the ATMegaZero ESP32-S2 comes in the same form RPI Zero form factor with the major difference being the powerful ESP32-S2 and the powerful features it brings into play.

The ESP32-S2 brings on board a secure, integrated 802.11 b/g/n WiFi 2.4GHz (up to 150Mbps), a 16 MB of Flash memory (for firmware and file storage), and an 8 MB external PSRAM and a rich set of IO pins all of which makes the ATMegaZero ESP32-S2 a perfect board for applications ranging from home automation and IoT to robotics or wearable tasks. It comes with an onboard microSD cardholder and a 30-pin OLED display port compatible with the popular SSD1306 & SH1106 IC displays.

Asides from the changes brought about by the use of the ESP32-S2, most of the functionalities of the previous board like its support for OLED displays and the micro USB OTG port, amongst others, were retained.

Highlights features and specifications of the ATMegaZero ESP32-S2 are summarized below:

32-bit 240 MHz single-core processor
256Mbit (32MB) SPI Flash but we can only use 16MB at the moment due to firmware limitations.
64Mbit (8MB) extra PSRAM
2.4 GHz Wi-Fi – 802.11b/g/n
3D Antenna
microSD cardholder
RGB Neopixel
FPC Connector for an OLED display
Raspberry Pi Zero form-factor
Dimensions: 65mm × 30mm × 5mm
Micro USB power

The ATMegaZero ESP32-S2 comes out of the box with ESP32-S2 supported version of Circuit Python, which means users only need to plug the board into their PC and it will show up on your computer’s file systems as USB flash drive!. To program the board, copy your circuit python-based code into the drive and you should be ready to go.

Like the AtmegaZero board, is based on the Raspberry Pi Zero opens up the board to compatibility with several hats designed for the raspberry pi zero, increasing the level of support available for it, and the speed at which prototypes can be developed using it.

Presumably, the preferred sales channel for Espinal Lab, the ATMegaZero ESP32-S2 is available on GroupGets, in a pack that contains the board along 1 Colorful 2×20 GPIO Header Pins. for $24.99 shipping inclusive. Same price as the ATMegaZero.

More information on the ATMegaZero ESP32-S2 along with its sales and delivery plans can be found on the products page on GroupGet.

MP17xA Non-Isolated Offline Regulators

Posted on 8 May, 2021 by mixos

MPS’ MP17xA series non-isolated offline regulators feature an integrated 700 V MOSFET and offer up to 280 mA output current with improved EMI performance

Monolithic Power Systems’ MP17xA series are primary-side regulators that provide accurate constant voltage (CV) regulation without an optocoupler. These devices support buck, boost, buck-boost, and flyback topologies. The devices’ integrated 700 V MOSFET simplifies the structure and reduces cost. This feature optimizes the devices for offline, low-power applications, such as home appliances and standby power. The MP17xA series are green mode operation regulators. Both the peak current and switching frequency lower as the load decreases. This feature provides excellent efficiency at light load and improves the overall efficiency. Protection features include thermal shutdown (TSD), V_CC under-voltage lockout (UVLO), overload protection (OLP), short-circuit protection (SCP), and open-loop detection. These devices are available in TSOT23-5 and SOIC-8 packages.

Features

Primary-side CV control
Support buck, buck-boost, boost, and flyback topologies
Integrated 700 V MOSFET and current source
Under 30 mW no-load power consumption
Up to 4 W output power
Max. DCM output current below 180 mA
Max. CCM output current below 280 mA
Low V_CC operating current
Frequency foldback
Limited max. frequency
Peak current compression
Internally biased V_CC
TSD, UVLO, OLP, SCP, and open-loop detection
Available in TSOT23-5 and SOIC-8 packages

more information: https://www.monolithicpower.com/en/mp173a.html