LTM4615EV-PBF(RevB) Ver la hoja de datos (PDF) - Linear Technology

Número de pieza

componentes Descripción

Fabricante

LTM4615EV-PBF
(Rev.:RevB)

Triple Output, Low Voltage DC/DC µModule Regulator

Linear Technology 

Simplified Block Diagram

Switching Regulator Block Diagram

PGOOD

TRACK

SUPPLY

4.99k

RUN/SS

CSSEXT

TRACK

RSS

1M

CSS

1000pF

5.76k

COMP

INTERNAL

COMP

CONTROL, DRIVE

POWER FETS

4.7µF

6.3V

M1 0.47µH

M2 470pF

VIN

RFBHI

4.99k

VOUT

4.7µF

6.3V

GND

LTM4615

VIN

22µF 2.375V TO 5.5V

6.3V

VOUT

1.5V

4A

22µF

6.3V

×3

FB

RFB

5.76k

SW

4615 F01a

VIN

1.14V TO 3.5V

VLDO Block Diagram

LDO_IN

10µF

4.7µF

6.3V

0.4V

GND3

EN3

ENABLE

5V BOOST

+

– CONTROL

GND3

GND3

GND

POWER GOOD

BOOST3

4.7µF

GND3

LDO_OUT

4.7µF

LDO_RHI

6.3V

4.99k

GND3

FB3

VOUT

1V

10µF 1.5A

PGOOD3

RFBLDO

3.32k

4615 F01b

10k

1V

Figure 1. Simplified LTM4615 Block Diagram of Each Switching Regulator Channel and the VLDO

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

SYMBOL

CIN

COUT

LDO_IN

LDO_OUT

PARAMETER

External Input Capacitor Requirement

(VIN = 2.375V to 5.5V, VOUT = 1.5V)

External Output Capacitor Requirement

(VIN = 2.375V to 5.5V, VOUT = 1.5V)

LDO Input Capacitance

LDO Output Capacitance

CONDITIONS

IOUT = 4A

IOUT = 4A

IOUT = 1A

IOUT = 1A

MIN TYP MAX UNITS

22

µF

66

100

µF

4.7

10

µF

10

µF

For more information www.linear.com/LTM4615

4615fb

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