LTM4628Y(RevC) 데이터 시트보기 (PDF) - Linear Technology

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LTM4628Y
(Rev.:RevC)

Dual 8A or Single 16A DC/DC µModule Regulator

Linear Technology 

LTM4628

Simplified Block Diagram

PGOOD1

TRACK1

SS CAP

100µA = VIN

RT

VIN

RT TEMP

CLKOUT

RUN1

MODE_PLLIN

PHASEMD

MTOP1

MBOT1

SS CAP

COMP1

SGND

TRACK2

INTVCC

4.7µF

EXTVCC

INTERNAL

COMP

POWER

CONTROL

MTOP2

RUN2

MBOT2

COMP2

fSET

RfSET

SGND

INTERNAL

COMP

INTERNAL

FILTER

+

XI

–

VIN

1µF

GND

CIN1

10µF

35V

CIN2

10µF

35V

0.68µH

2.2µF

SW1

VOUT1

1.5V/8A

+

GND

COUT1

VOUTS1

60.4k

1µF

VFB1

PGOOD2

VIN

GND

RFB1

40.2k

CIN3

10µF

35V

CIN4

10µF

35V

0.68µH

2.2µF

60.4k

SW2

VOUT2

1.2V/8A

+

GND

COUT2

VOUTS2

VFB2

RFB2

60.4k

DIFFOUT

DIFFN

DIFFP

4628 BD

Figure 1. Simplified LTM4628 Block Diagram

Decoupling Requirements TA = 25°C. Use Figure 1 configuration.

SYMBOL PARAMETER

CONDITIONS

MIN

CIN1, CIN3

CIN2, CIN4

COUT1

COUT2

External Input Capacitor Requirement

(VIN1 = 4.5V to 26.5V, VOUT1 = 1.5V)

(VIN2 = 4.5V to 26.5V, VOUT2 = 1.5V)

External Output Capacitor Requirement

(VIN1 = 4.5V to 26.5V, VOUT1 = 1.5V)

(VIN2 = 4.5V to 26.5V, VOUT2 = 1.5V)

IOUT1 = 8A

IOUT2 = 8A

IOUT1 = 8A

IOUT2 = 8A

TYP MAX

22

22

300

300

UNITS

µF

µF

µF

µF

4628fc

9

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