MAX1902 View Datasheet(PDF) - Maxim Integrated

Part Name

Description

Manufacturer

MAX1902

500kHz Multi-Output, Low-Noise Power-Supply Controllers for Notebook Computers

Maxim Integrated 

500kHz Multi-Output, Low-Noise Power-Supply

Controllers for Notebook Computers

REF

MAIN PWM

COMPARATOR

SLOPE COMP

1X

R

Q

S

OSC

CSH_

CSL_

FROM

FEEDBACK

DIVIDER

LEVEL

SHIFT

BST_

DH_

LX_

SKIP

SHDN

30mV

DAC

CK

COUNTER

SOFT-START

CURRENT

LIMIT

SHOOT-

THROUGH

CONTROL

-100mV

SYNCHRONOUS

RECTIFIER CONTROL

RQ

S

LEVEL

SHIFT

VL

DL_

PGND

REF

SECFB

0.75µs

SINGLE-SHOT

Figure 3. PWM Controller Functional Block Diagram

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