LTM8045 datasheet(47/54 Pages) AD

47 / 54 page

LTM4655

Rev. 0

For more information www.analog.com

Figure 45. Single 8A, 24V Output DC/DC μModule Regulator with Optional Analog Temperature Indicator

TYPICAL APPLICATIONS

LOAD

24VOUT,

UP TO 8A

47µF

×4

4.7 F

90.9k

4.7 F

90.9k

4.7 F

240k

196k

100

4655 F45

1 F

VIN

29V TO 40V

196k

100

1 F

100k

66.5k

5VOUT,

UP TO 25mA

0.1µF

470pF

OPTIONAL ANALOG OUTPUT

TEMPERATURE INDICATOR

D+

D–

VCC VREF

VPTAT

GND

LTC2997*

4mV/K

CFILTER

>1k

VPTAT(FILTER)

VIN1

VD1

SVINF2

VIN2

SVIN1

SVINF2

SVINF1

fSET1

VINREG1

LDOIN

CLKOUT1

CLKIN1

VD2

fSET2

RUN1

CLKIN2

CLKOUT2

COMP2b

COMP2a

INTVCC2

RUN2

COMP1b

COMP1a

VINREG2

MOD

GND

ISET1b

ISET1a

ISET2b ISET2a

TEMP+

TEMP–

IMON2b

IMON2a

LDOOUT

CLKSET

IMON1a

IMON1b

VOUT2–

VOUT1+

SW1

SW2

VOUT1–

VOSNS1+

SVOUT1–

PGDFB1

EXTVCC1

VOSNS2+

EXTVCC2

PGDFB2

PGOOD1

VOUT2+

PGOOD2

SVOUT2–

INTVCC1

LTM4655

RUN

>1.2VTYP = ON

<1.07VTYP = OFF

INTVCC2

PGOOD

INTVCC2

* PLACE 470pF DIRECTLY ACROSS THE LTC2997'S D+/D– PINS.

ROUTE TEMP+/TEMP– DIFFERENTIALLY TO D+/D– AND PROTECT FROM NOISE WITH GROUND SHIELDING.

TERMINATE (CONNECT) THE D+/D– GROUND SHIELD AT THE LTC2997 GND PIN, ONLY.

FOR BEST VPTAT PERFORMANCE, THE VCC PIN OF THE LTC2997 MUST BE LOCALLY BYPASSED AND QUIET.

SEE LTC2997 DATA SHEET AND APRIL 2017 LT JOURNAL TECHNICAL ARTICLES.

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LTM8045 Datasheet(PDF) 47 Page - Analog Devices

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