LP2975IMMX-5.0/NOPB

Description：IC LNR REG CTRLR 1OUT 8VSSOP
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)

SKU:c553e05aba36 Category: Voltage Regulators - Linear Regulator Controllers Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC LNR REG CTRLR 1OUT 8VSSOP
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)
Type：Positive Fixed
Number of Outputs：1
Current - Supply：180µA
Voltage - Input：1.8V ~ 24V
Operating Temperature：-40°C ~ 125°C
Mounting Type：Surface Mount
Supplier Device Package：8-VSSOP
Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

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LP2975IMMX-5.0/NOPB

Overview

The LP2975IMMX-5.0/NOPB is a MOSFET LDO Driver/Controller manufactured by Texas Instruments, designed to create high-current low-dropout regulators using an external P-channel FET. It operates within a supply voltage range of 1.8V to 24V and features a fixed 5.0V output with 1.5% precision accuracy for the 'A' grade. The device includes a low-power shutdown input drawing less than 1 µA, typical operating current of 180 µA at 5V, and built-in overtemperature protection.

Feature Summary

Enables simple design of high-current LDO regulators using minimal external components
Provides ultra-low dropout performance determined by the external FET's on-resistance
Includes a low-power shutdown input for significant standby current reduction
Features built-in current limit amplifier and overtemperature protection

Applications

High-current 5V to 3.3V regulator designs
Post-regulator stages for switching converters
Current-limited power distribution systems

Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free status and RoHS compliance as per manufacturer specifications. Confirm the package designation matches VSSOP-8 requirements for your PCB layout. Ensure the 'A' grade selection aligns with the required 1.5% output voltage accuracy tolerance for your application.

Selection Notes

Select this controller when designing custom high-current linear regulators requiring precise voltage regulation. It is suitable for applications needing wide input voltage ranges up to 24V. Consider the external P-FET selection carefully, as its RDS(ON) directly impacts dropout voltage and thermal performance.

Part Context

This component belongs to the LP2975 series of MOSFET LDO drivers/controllers from Texas Instruments. It is part of a family offering standard output voltages including 5.0V and 3.3V. The device utilizes a trimmed internal bandgap reference to ensure precise output voltage stability across the full operating temperature range.