ISL6217 데이터 시트보기 (PDF) - Intersil

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ISL6217

Precision Multi-Phase Buck PWM Controller for Intel‚ Mobile Voltage Positioning IMVP-IV™ and IMVP-IV+™

Intersil 

Block Diagram

VSEN PGOOD

ISL6217

EN

1.3V

+-

VDD

POWER-ON

RESET(POR)

+

OVP

-

112% RISING

102% FALLING

88% RISING

84% FALLING

+-

UV

DACOUT

SOFT

EA+

32 COUNT

CLOCK

CYCLE

VSOFT SOFT

START

VID0

VID1

VID2

VID3

VID4

VID5

COMP

FB

OCSET

VID

D/A

1.75V

+

CONTROL

AND

FAULT LOGIC

+

E/A

-

CLOCK AND

SAWTOOTH

GENERATOR

+Σ

-

+

PWM

-

+

Σ

-

+

PWM

-

HIGH-IMPEDANCE STATE

1.75V

PWM1

VBAT

FS

HIGH-IMPEDANCE STATE

PWRCH

PWM2

VDDP

BOOT1

PWM1

PHASE

LOGIC

UG1

PHASE1

VDDP

LG1

PWM2

PHASE

LOGIC

VDDP

VSSP1

BOOT2

CHANNEL

CURRENT

BALANCE

PWRCH

UG2

PHASE2

IDROOP

VDDP

0.435

LG2

STV

DSV

DRSV

MUX

I OCSET

Σ

+-

1

2N

Σ

Σ

OC -2μA

8μA

VCORE

REF

32 COUNT

CLOCK

CYCLE

SAMPLE

&

HOLD

CHANNEL

CURRENT

SENSE

VSSP2

ISEN1

ISEN2

DSEN# DRSEN

VSS

PWRCH

3

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