LDFM
Datasheet
500 mA very low drop voltage regulator
PPAK
DFN6 (2x2)
DFN6 (3x3)
DPAK
Maturity status link LDFM
Fe...
LDFM
Datasheet
500 mA very low drop voltage
regulator
PPAK
DFN6 (2x2)
DFN6 (3x3)
DPAK
Maturity status link LDFM
Features
Input voltage from 2.5 to 16 V Very low dropout voltage (300 mV max. at 500 mA load) Low quiescent current (200 µA typ. @ 500 mA load) Available in 1 % precision in PPAK and DFN6 packages, 2 % in DPAK 500 mA guaranteed output current Wide range of output voltages available on request: adjustable from 0.8 V, fixed
up to 12 V in 100 mV steps Logic-controlled electronic shutdown Power Good (PPAK and DFN packages) Fast dynamic response to line and load changes Internal current and thermal protection Temperature range: - 40 °C to 125 °C
Applications
PCs and laptop computers Battery-powered equipment Industrial and medical equipment Portable equipment
Description
The LDFM is a fast, very low drop linear
regulator which operates from an input supply voltage in the range of 2.5 V to 16 V. It is available in fixed and adjustable output voltage versions, from 0.8 V to 12 V. The LDFM features high output precision, very low dropout voltage, low noise, and low quiescent current, therefore suitable for low voltage microprocessors and memory applications. Enable logic control pin and Power Good output are featured on PPAK/DFN packages. Current and thermal protection are provided.
DS9220 - Rev 6 - May 2021 For further information contact your local STMicroelectronics sales office.
www.st.com
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Block diagram
Figure 1. Block diagram ...