LTM4609V Просмотр технического описания (PDF) - Linear Technology

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производитель

LTM4609V

36VIN, 34VOUT High Efficiency Buck-Boost DC/DC µModule Regulator

Linear Technology 

LTM4609

Simplified Block Diagram

ON/OFF

SS

0.1µF

EXTVCC

INTVCC

PGOOD

RUN

100k

STBYMD

COMP

0.1µF

INT

COMP

SS

PLLIN

PLLFLTR

CONTROLLER

VIN

4.5V TO 36V

C1

CIN

M1

SW2

M2

L

SW1

VOUT

12V

4A

CO1

M3

COUT

100k

VFB

RFB

7.15k

M4

RSENSE

SENSE+

INT

FILTER

SENSE–

RSENSE

TO PGND PLANE AS

SHOWN IN FIGURE 15

INT

FILTER

FCB

SGND 1000pF

Figure 1. Simplified LTM4609 Block Diagram

PGND

4609 BD

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

SYMBOL

CIN

COUT

PARAMETER

External Input Capacitor Requirement

(VIN = 4.5V to 36V, VOUT = 12V)

External Output Capacitor Requirement

(VIN = 4.5V to 36V, VOUT = 12V)

CONDITIONS

IOUT = 4A

IOUT = 4A

MIN TYP MAX UNITS

10

µF

200

300

µF

4609ff

8

For more information www.linear.com/LTM4609

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