+

±

Charge

Pump

Current

Limit

0.8-V

Thermal

Shutdown

Error

Amp

Internal

Controller

OUT

FB

PG

EN

NR/SS

IN

GND

Active

Discharge

+

±

200 pF

BIAS

UVLO

Circuits

PSRR

Boost

8

TPS7A52

SBVS295 – NOVEMBER 2019

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Copyright © 2019, Texas Instruments Incorporated

7 Detailed Description

7.1 Overview

regulator with an input range of 1.1 V to 6.5 V and an output voltage range of 0.8 V to 5.1 V. The TPS7A52 has

an integrated charge pump for ease of use, and an external bias rail to allow for the lowest dropout across the

entire output voltage range. Table 1 categorizes the functions shown in the Functional Block Diagram. These

features make the TPS7A52 a robust solution to solve many challenging problems by generating a clean,

accurate power supply in a variety of applications.

Table 1. Device Features

VOLTAGE REGULATION

SYSTEM START-UP

INTERNAL PROTECTION

High accuracy

Programmable soft start

Foldback current limit

Low-noise, high-PSRR output

No sequencing requirement between BIAS,

IN, and EN

Thermal shutdown

Fast transient response

Power-good output

Start-up with negative bias on OUT

7.2 Functional Block Diagram