LTM4620AY Ver la hoja de datos (PDF) - Linear Technology

Número de pieza

componentes Descripción

Fabricante

LTM4620AY

Dual 13A or Single 26A DC/DC µModule Regulator

Linear Technology 

LTM4620A

SIMPLIFIED BLOCK DIAGRAM

PGOOD1

TRACK1

SS

CAP

VIN = 100µA

RT

VIN

RT TEMP

CLKOUT

RUN1

MODE_PLLIN

PHASEMD

MTOP1

MBOT1

COMP1

SGND

INTERNAL

COMP

TRACK2

SS

INTVCC

CAP

4.7µF

EXTVCC

POWER

CONTROL

MTOP2

RUN2

MBOT2

COMP2

fSET

RFSET

SGND

INTERNAL

COMP

INTERNAL

FILTER

+–

VIN

1µF

GND

CIN1

22µF

25V

CIN2

22µF

25V

0.56µH

2.2µF

SW1

VOUT1

+

GND

VOUTS1

COUT1

60.4k

1µF

VFB1

PGOOD2

VIN

GND

RFB1

40.2k

CIN3

22µF

25V

VOUT1

1.5V/13A

CIN4

22µF

25V

0.56µH

2.2µF

60.4k

SW2

VOUT2

+

GND

VOUTS2

COUT2

VFB2

RFB2

60.4k

VOUT2

1.2V/13A

DIFFOUT

DIFFN

DIFFP

Figure 1. Simplified LTM4620A Block Diagram

4620A F01

DECOUPLING REQUIREMENTS TA = 25°C. Use Figure 1 configuration.

SYMBOL PARAMETER

CONDITIONS

MIN

CIN1, CIN2

CIN3, CIN4

COUT1

COUT2

External Input Capacitor Requirement

(VIN1 = 4.75V to 16V, VOUT1 = 1.5V)

(VIN2 = 4.75V to 16V, VOUT2 = 1.2V)

External Output Capacitor Requirement

(VIN1 = 4.75V to 16V, VOUT1 = 1.5V)

(VIN2 = 4.75V to 16V, VOUT2 = 1.2V)

IOUT1 = 13A

IOUT2 = 13A (Note 8)

IOUT1 = 13A

IOUT2 = 13A (Note 8)

10

For more information www.linear.com/LTM4620A

TYP MAX UNITS

22

µF

22

µF

300

µF

300

µF

4620afc

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