EN

SW

FB

GND

L

OFF

ON

BST

Cc

Cp

COMP

VCC

+

+

+

Gm

S

Q

R

BST

SW

LS

DRV

HS

DRV

VOUT

Q

Hiccup

Control

Fault

Proteciton

UVLO,

OVP,

Thermal

BOOT

REG

Isolation

FET

Control

VOUT

1/K

VOUT

VIN

Zero

crossing

VMAX

PWM

Comparator

REF

Soft

start

Clamp

Circuitry

Current limit

trigger

TOFF

MODE

Auto

PFM

Forced

PWM

VIN

Copyright © 2017, Texas Instruments Incorporated

10

TPS61372

SLVSEE7 – JUNE 2018

www.ti.com

Product Folder Links: TPS61372

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Copyright © 2018, Texas Instruments Incorporated

8 Detailed Description

8.1 Overview

The TPS61372 is a high-integrated synchronous boost regulator to support 16-V output with load disconnect

built-in. The TPS61372 supports the input voltage ranging from 2.5 V to 5.5 V. The TPS61372 uses the peak

current mode with adaptive off-time control topology to regulate the output voltage. The TPS61372 operates at a

quasi-constant frequency pulse-width modulation (PWM) at the moderate to heavy load current. High efficiency is

achieved at light load as the TPS61372 operates in PFM operation. The device could be also configured at the

forced PWM mode to keep the frequency be constant across whole load range for the noise sensitive

applications.

8.2 Functional Block Diagram