SW

MOSFETDriver

AntiShootThrough

ConverterControl

Logic

HighSide

Current

Sense

LowSide

Current

Sense

0.6V

0.6V

1.5MHz

SawTooth

Summing

Comparator

FB

Loop

Compensation

Error Amplifier

PFM

Comparator

Analog

Softstart

PLL

MODE

PVIN

Bandgap

Undervoltage

Lockout

ThermalShutdown

AVIN

PGND

AGND

0.6V

PG

OVT

EN

EN

OutputVoltage

Tracking

R1

R2

(SeeNote A)

PFM/PWM

Transition

Q1

Q2

Q3

Q4

R3

R4

VOUT

Generator

0.6V

0.6V

TPS62510

SLVS651B – MAY 2006 – REVISED DECEMBER 2015

www.ti.com

7.2 Functional Block Diagram

A.

R1 and R2 are only used for the fixed output voltage version.

7.3 Feature Description

7.3.1 Output Voltage Tracking (OVT)

In applications where a processor or FPGA is powered, it is important that the I/O voltage and core voltage start-

up in a controlled way to avoid possible processor and FPGA latch-up. To implement this, the TPS62510 has an

output voltage tracking feature where the internal reference voltage for the error amplifier follows the voltage

shows a typical application where an external voltage (V1) is applied to OVT pin using a resistor divider.

8

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