STMicroelectronics L5150GJ Low Dropout Voltage Regulator Datasheet

L5150GJ is a low dropout linear regulator with microprocessor control functions such as power on reset, low voltage reset, early warning, on/off control. Typical quiescent current is 55μA in very low output current mode and enabled regulator. It drops to 5μA with not enabled regulator. On chip trimming results in high output voltage accurancy (2%). Accurancy is kept over wide temperature range, line and load variation. Early warning circuit monitors the input voltage and compares it to an internal voltage reference. Output voltage reset threshold can be adjusted down to 3.5V by means of an external voltage divider. The maximum input voltage is 40V. The max output current is internally limited. Internal temperature protection disables the voltage regulator output. In addition, only low-value ceramic capacitor on output is required for stability.


STMicroelectronics L5150GJ Low Dropout Voltage Regulator Datasheet - cover page
Brand
STMicroelectronics
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
29
File format
PDF
File size
741 KB
Published
08 August, 2012
Updated
01 October, 2023
MD5 checksum
A4C0FA2D156FBBA8FD40357CC3ABE15D

About this manual

The L5150GJ is a low dropout linear regulator designed for applications requiring precise output voltage regulation and microprocessor control features. It provides a regulated 5V output with a tolerance of +/-2% and includes built-in protection mechanisms such as thermal shutdown, short-circuit protection, and adjustable reset thresholds.

The device operates over a wide input voltage range from 5.6 V to 40 V and supports an output current up to 150 mA. Key features include programmable reset pulse delay via an external capacitor, early warning circuitry for monitoring input voltage levels, and low quiescent current consumption in both enabled and disabled states.

What's inside

  • Block diagram and pins description
  • Absolute maximum ratings
  • Thermal data
  • Electrical characteristics
  • Voltage regulator application information
  • Reset circuit functionality
  • Early warning input/output
  • Enable input control

Specifications

Output voltage (typical)5 V +/- 2%
Max DC supply voltage40 V
Max dropout voltage500 mV
Output current capability150 mA
Quiescent current (enabled)55 uA
Operating temperature range-40 °C to 150 °C

Frequently asked questions

What is the maximum input voltage for the L5150GJ?

The maximum input voltage is 40 V.

Can the reset threshold be adjusted?

Yes, the output voltage reset threshold can be adjusted down to 3.5 V using an external voltage divider.

What capacitor is required for stability?

A ceramic capacitor with a value of 220 nF should be connected between the output and ground.

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