7 Detailed Description

7.1 Overview

The TLVM13630 is an easy-to-use, synchronous buck, DC-DC power module that operates from a 3-V to 36-V

supply voltage. The device is intended for step-down conversions from 5-V, 12-V, and 24-V supply rails. With

an integrated power controller, inductor, and MOSFETs, the TLVM13630 delivers up to 3-A DC load current with

high efficiency and ultra-low input quiescent current in a very small solution size. Although designed for simple

implementation, this device offers flexibility to optimize its usage according to the target application. Control loop

compensation is not required, reducing design time and external component count.

The TLVM13630 incorporates many features for comprehensive system requirements, including the following:

• Wide, adjustable frequency range from 200 kHz to 2.2 MHz

• An open-drain power-good circuit for power-rail sequencing and fault reporting

• Monotonic start-up into prebiased loads

• Precision enable for programmable line undervoltage lockout (UVLO)

• Thermal shutdown with automatic recovery

These features enable a flexible and easy-to-use platform for a wide range of applications. The pin arrangement

is designed for simple layout, requiring few external components. See Section 10 for more details.

7.2 Functional Block Diagram

PG

PGND

VCC

VOUT

AGND

FB

EN

PGOOD

Logic

+

VREF

Comp

Power

Stage

and

Control

Logic

Shutdown

Logic

OCP

UVLO

Oscillator

Soft

Start

LDO

Enable

Logic

2.2µH

SW

VIN

SYNC

Detect

RT

VLDOIN

OTP

EN

OTP

OCP

UVLO

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TLVM13630

SLVSFT6 – MAY 2021

Copyright © 2021 Texas Instruments Incorporated

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