LTM4609 datasheet(29/38 Pages) LINER

29 / 38 page

LTM4636-1

46361fa

For more information www.linear.com/LTM4636-1

TYPICAL APPLICATIONS

Figure 21. 2-Phase 1V, 80A Regulator Design

7.5k

0.47µF

34.8k

4.75V TO 15V

COMPA

COMPB

TRACK/SS

RUNC

RUNP

HIZREG

FREQ

MODE/PLLIN

TEMP+ TEMP– SNSP1 SNSP2 SGND

VIN

34.8k

CLK

INTVCC2

22µF

80A

22µF

16V

×4

CSS

0.22µF

COMP

5V, PVCC2

TRACK/SS

RUNC

RUNP

OPTIONAL TEMP MONITOR

FOR TELEMETRY READBACK ICs

INTVCC

INTVCC2

5V PVCC2

LTM4636-1

PVCC

PGND

VOUTS1+

VOUT

VOUTS1–

VFB

RFB2

7.5k

46361 F21

TMON

VOLTAGE OUT TEMP MONITOR

470µF

6.3V

470µF

6.3V

100µF

6.3V

×4

COMPA

COMPB

TRACK/SS

RUNC

RUNP

HIZREG

PHMODE

FREQ

MODE/PLLIN

CLKOUT

TMON

VOUT

TEMP+ TEMP– SNSP1 SNSP2 SGND

VIN

22µF

2200pF

VOLTAGE OUT

TEMP MONITOR

2.2, 0805

22µF

16V

×4

VIN ≤ 5.5V, TIE VIN AND PVCC TOGETHER, TIE RUNP TO GND.

VIN > 5.5V, THEN OPERATE AS SHOWN

INTVCC1

RUNC

RUNP

CLK

COMP

TRACK/SS

OPTIONAL TEMP MONITOR

FOR TELEMETRY READBACK ICs

INTVCC

INTVCC1

5V PVCC1

LTM4636-1

PVCC

PGND

VOUTS1–

VFB

INTVCC1

470µF

6.3V

470µF

6.3V

100µF

25V

100µF

6.3V

×4

2200pF

2.2, 0805

SGND

100pF

PINS NOT USED IN CIRCUIT LTM4636-1 U1:

GMON, PGOOD, PWM, TEST1, TEST2, TEST3,

VOSNS1+, CROWBAR, OTP_SET, OVP_SET, BIAS,

OVP_TRIP, OVER_TEMP

PINS NOT USED IN CIRCUIT LTM4636-1 U2:

GMON, PGOOD, PHMODE, PWM, TEST1, TEST2,

TEST3, CROWBAR, OTP_SET, OVP_SET, BIAS,

OVP_TRIP, OVER_TEMP

LTM4609 Datasheet(PDF) 29 Page - Linear Technology

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