LD49100 Low Quiescent Voltage Regulator

STMicroelectronics’ voltage regulators are stable with ceramic capacitors on the input and output

STMicroelectronics’ LD49100 provides 1 A maximum current with an input voltage range from 1.5 V to 5.5 V and a typical dropout voltage of 200 mV at 1 A output current. The device is stable with ceramic capacitors on the input and output.

The ultra low-dropout voltage, low quiescent current and low-noise features make it suitable for a wide range of automotive applications. Power supply rejection is 70 dB at low frequency and starts to roll off at 10 kHz. Enable logic control function puts the LD49100 in shutdown mode, allowing a total current consumption lower than 1 μA.

• AEC-Q100 qualified
• Temperature range: -40°C to +125°C
• Input voltage from 1.5 V to 5.5 V
• Ultra low-dropout voltage (200 mV typ. at 1 A load)
• Very low quiescent current (20 µA typ. at no load)
• Very low-noise with no bypass capacitor (30 µV_RMS at V_OUT = 0.8 V)
• Output voltage tolerance: ±2.0%
• DFN6 (3 mm x 3 mm) package with wettable flanks

more information: https://www.st.com/en/power-management/ld49100.html

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