LD2985AM25R

$1.10

Description：IC REG LINEAR 2.5V 150MA SOT23-5
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:93f772c4d52f Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC REG LINEAR 2.5V 150MA SOT23-5
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)
Output Configuration：Positive
Output Type：Fixed
Number of Regulators：1
Voltage - Input (Max)：16V
Voltage - Output (Min/Fixed)：2.5V
Voltage - Output (Max)：-
Voltage Dropout (Max)：0.575V @ 150mA
Current - Output：150mA
Current - Quiescent (Iq)：150 µA
Current - Supply (Max)：4 mA
PSRR：45dB (1kHz)
Control Features：Enable
Protection Features：Over Current, Over Temperature
Operating Temperature：-40°C ~ 125°C
Mounting Type：Surface Mount
Package / Case：SC-74A, SOT-753
Supplier Device Package：SOT-23-5
Grade：-
Qualification：-

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LD2985AM25R

Overview

The LD2985AM25R is a fixed-output low-dropout (LDO) linear voltage regulator manufactured by STMicroelectronics. It provides a fixed output voltage of 2.5 V with a maximum output current capability of 150 mA. The device operates within an input voltage range up to 16 V and features an ultra-low dropout voltage, specified as 280 mV at full load and 7 mV at light loads. It incorporates logic-controlled electronic shutdown functionality via the inhibit pin, reducing quiescent current to less than 1 μA in sleep mode. The component is housed in a compact SOT-23-5 surface-mount package.

Feature Summary

Ultra-low dropout voltage operation suitable for battery-powered systems
Logic-controlled electronic shutdown function for power management
Low noise performance with external bypass capacitor support
Internal thermal and current limiting protection

Applications

Cellular phones
Palmtop laptop computers
Personal digital assistants (PDA)
Camcorders and cameras

Procurement Notes

Verify the specific suffix 'AM25R' against official STMicroelectronics documentation to confirm the exact output voltage tolerance and temperature grade. Ensure the ordering code matches the required package variant and tape-and-reel specifications. Cross-reference the part number with the manufacturer's active product list to confirm availability status before procurement.

Selection Notes

Select this component when a stable 2.5 V rail is required with minimal voltage drop across the regulator. Consider its low quiescent current and shutdown feature for applications prioritizing energy efficiency. Verify that the load current does not exceed the 150 mA limit and that the input voltage remains within the 16 V maximum rating.

Part Context

This component belongs to the LD2985 series of very low drop and low noise voltage regulators from STMicroelectronics. The series is designed for low-power applications requiring high stability and low noise. Other variants in the family offer different fixed output voltages such as 1.8 V, 3.0 V, 3.3 V, and 5 V, all sharing similar package and functional characteristics.