ISL8025 View Datasheet(PDF) - Intersil

Part Name

Description

View to exact match

ISL8025

Compact Synchronous Buck Regulators

Intersil 

ISL8025, ISL8025A

SS

SOSFoTft-

START

SHUTDOWN

COMP

55pF

100kΩ

FS SYNC

SHUTDOWN

VDD

EN BANDGAP VREF

EAMP

-

FB

6kΩ

3pF

+

0.8V

-

+

SLSOloPpEe

COMP

OV

-

0.85*VREF

+ UV

PG

SGND

1ms

DELAY

OSCILLATOR

+

COMP

-

PWM/PFM

LOGIC

CONTROLLER

PROTECTION

HS DRIVER

+

OCP

-

+

SKIP

-

+

CSA

-

ISET

THRESHOLD

NEG CURRENT

SENSING

VIN

P

PHASE

LS

DRIVER

N

PGND

0.5V

-

SCP

+

ZERO-CROSS

SENSING

SHUTDOWN

100Ω

FIGURE 3. FUNCTIONAL BLOCK DIAGRAM

5

FN8357.0

February 20, 2013

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