XD9260/61 – 1.5A Hi-SAT COT Synchronous Step-Down DC/DC Converter

XD9260/61 – 1.5A Hi-SAT COT Synchronous Step-Down DC/DC Converter, AEC-Q100 compliant

The XD9260/XD9261 series is a small 1.5A synchronous step-down DC/DC converter with high-speed transient response and low quiescent current. The extremely fast load transient performance is a result of Torex’s innovative Hi-SAT COT (Constant On-Time) control method, which, when compared to standard Constant On-Time (COT) control, provides less fluctuation in oscillation frequency against load and input voltage.

The input voltage range is 2.7V to 5.5V and the output voltage range is 0.8V to 3.6V (accuracy ±2.0%). 1.2MHz or 3.0MHz can be selected for the oscillation frequency and the operating ambient temperature range is -40°C ~ 105°C.

The XD9260 operates with Hi-SAT COT plus fixed PWM mode with fixed switching frequency whereas the XC9261 automatically changes between PWM and PFM (pulse-skipping) mode to maximise efficiency at lighter loads.

The soft-start time is set to 0.3ms (TYP.). With the built-in UVLO function, the driver transistor is forced OFF when the input voltage becomes 2.0V or lower.

Key features

• Input Voltage from 2.7 V to 5.5 V
• Output Voltage from 0.8 V to 3.6 V in 0.05 V increments
• Up to 1.5 A Output Current
• Low Quiescent Current, only 15 µA (1.2 MHz)
• AEC-Q100 qualified (-40 ˚C ~ +105 ˚C)

Key benefits

• Space Saving Solution
  • Ultra-Small USP-6C Package (2.0 x 1.8 mm)
  • Small-Value Inductor (1.0 µH)
  • Minimized External Component Count
• Ultra-Low IQ and High Efficiency at Light Load Conditions
  • 15.0 µA in Sleep Mode
  • 0.1 µA in Shutdown Mode
• Hi-SAT COT Control
  • Ultra-Fast Transient Response
  • Stable Switching Frequency​

more information: https://www.torexsemi.com/products/step-down-dcdc-converters/series/?name=xd9260

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