LDO40L Series

400 mA, 38 V low-dropout regulator, with 45 µA quiescent current

Catalog

400 mA, 38 V low-dropout regulator, with 45 µA quiescent current

Part	Voltage Dropout (Max) [Max]	Protection Features	Mounting Type	Output Configuration	Output Type	Package / Case	Voltage - Input (Max) [Max]	Grade	Current - Supply (Max) [Max]	Qualification	Control Features	Operating Temperature [Min]	Operating Temperature [Max]	Current - Output	PSRR [Max]	PSRR [Min]	Supplier Device Package	Current - Quiescent (Iq)	Number of Regulators	Voltage - Output (Min/Fixed)
STMicroelectronics LDO40LPU50RY	0.27 V	Over Current Over Temperature	Surface Mount Wettable Flank	Positive	1.81 mOhm	6-VDFN Exposed Pad	38 V	Automotive	140 µA	AEC-Q100	Enable	-40 °C	125 ¯C	400 mA	77 dB	42 dB	6-DFN (3x3)	90 çA	1	5 V

Catalog

400 mA, 38 V low-dropout regulator, with 45 µA quiescent current

Key Features

• Output voltage accuracy:

- ± 1% typ. @ 25 °C

- ± 3% (including line, load and temperature variation)

• Ultra low-dropout:

- 36 mV @ 100 mA load current

- 140 mV @ 400 mA load current

Description

The LDO40L is a 400 mA LDO regulator, designed for being used in severe automotive environments. Low quiescent current makes it suitable for applications permanently connected to battery. This feature is especially critical when electronic modules remain in active mode when ignition is off. The LDO40L embeds protection functions, such as: current limit and thermal shutdown. The extended input voltage range, low drop voltage and low quiescent current features make it suitable also for low power industrial and consumer applications.