LOGIC

SYNC/NON-

SYNC

PWM

Ramp

AGND

CURRENT

LIMIT

10 uA

SW

COMP

VIN

PGND

EN

FB

S/D

OSC

UVP

SCP

Current

Sense

UVP

REF

BG

BG

TSD

+

-

+

-

+

-

Feedback Fault Protection

RESET

SET

EAMP

REF

SS

VOUT

Q

Q

R

S

LM4510

www.ti.com

SNVS533C – SEPTEMBER 2007 – REVISED MAY 2013

BLOCK DIAGRAM

Figure 23. LM4510 Block Diagram

Operation Description

LM4510 is a peak current-mode, fixed-frequency PWM boost regulator that employs both Synchronous and Non-

Synchronous Switching.

The DC/DC regulator regulates the feedback output voltage providing excellent line and load transient response.

The operation of the LM4510 can best be understood by referring to the Block Diagram.

NON-SYNCHRONOUS OPERATION

10V (typ.). At light load, LM4510 automatically changes its switching operation from 'Synchronous' to 'Non-

reducing PMOS driving loss.

Copyright © 2007–2013, Texas Instruments Incorporated

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