RT9210GC Ver la hoja de datos (PDF) - Richtek Technology

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RT9210GC

Dual 5V Synchronous Buck DC-DC PWM Controller for DDR Memory VDDQ and VTT Termination

Richtek Technology 

RT9210

Typical AppIication Circuit

Preliminary

VIN

2.5V/3.3V/5V

C2

R6

1uF

R1

C1

10k

3.48k

1nF

RT9210

RESET

Q5

15 VCC

19

PGOOD

VREF_IN

VREF_OUT

C3 100pF

C4

0.1uF

C7

0.1uF

21 OCSET/SD

7

SENSE1

BOOT1 2

UGATE1 1

VTT_SD

C6

20

V2_SD

8 VREF_IN

4

VREF

6 COMP1

C5

5.6nF

PHASE1 3

PVCC1 22

23

LGATE1

PGND1 24

BOOT2 11

UGATE2 12

100pF R4

6.34k

5 FB1

PHASE2 10

LGATE2 14

PGND2 13

R2

C8

1k

15nF

R3

1.25k R5

100

SENSE2 17

GNDA

9

VCC

5V

D1

1N4148

C10

470uF

C9

0.1uF

PHKD6N02LT

Q1

1uH

L1

C12 to C15

150uF (x 4)

Q2

VIN (>VDDQ)

2.5V/3.3V/5V

VDDQ

1.8V

D2

1N4148

VCC

5V

C11

0.1uF

PHKD6N02LT

Q3

1uH

C16 to C17

L2 150uF (x 2)

Q4

VTT

0.9V

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2

DS9210-05 March 2007

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