LTC3609IWKG-TRPBF(RevB) Просмотр технического описания (PDF) - Linear Technology

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Компоненты Описание

производитель

LTC3609IWKG-TRPBF
(Rev.:RevB)

32V, 6A Monolithic Synchronous Step-Down DC/DC Converter

Linear Technology 

LTC3609

Typical Applications

3.6V Input to 1.5V/6A at 750kHz

INTVCC

CVCC

4.7µF

6.3V

CF

0.1µF

50V

VBIAS

5V

SW

GND

40 39 38 37 36 35 34 33 32 31 30 29 28 27

VOUT

1.5V AT

6A

GND

COUT1

100µF

x2

L1

0.5µH

VIN

VIN

3.6V

CIN

4.7µF

50V

x2

41 SW

42 SW

43 SW

44 SW

45 SW

46 SW

47 SW

48 PVIN

49 PVIN

50 PVIN

51 PVIN

52 PVIN

LTC3609

SGND 26

NC 25

NC 24

VFB 23

ION 22

NC 21

SGND 20

FCB 19

ITH 18

VRNG 17

PGOOD 16

SGND 15

1 2 3 4 5 6 7 8 9 10 11 12 13 14

CIN: MURATA GRM32ER71H475K

COUT: MURATA GRM435R60J167M

LI: CDEP850R5MC-125

KEEP POWER GROUND AND SIGNAL

GROUND SEPARATE. CONNECT AT

ONE POINT.

SW

2Ω

INTVCC

DB

CMDSH-3

CB1

0.22µF

SW

CSS

0.1µF

CVON

0.1µF

EXTVCC

C4

0.01µF

R2

60.4k

1%

R1

40.2k

1%

VOUT

RON

113k

1%

VIN

INTVCC

JP1

R5

CC1

1500pF

8.45k

RPG1

100k

CC2

100pF

PGOOD

SGND

INTVCC

VOUT

3609 TA02

IL

5A/DIV

Transient Response

VOUT

200mV/DIV

20µs/DIV

LOAD STEP 1A TO 5A

VIN = 3.6V

VOUT = 1.5V

FCB = 0V

3609 TA02b

100

95

90

85

80

75

70

65

60

55

50

0.01

Efficiency vs Load Current

VIN = 3.6V

FREQUENCY = 750kHz

0.1

1

LOAD CURRENT (A)

10

3609 TA02c

3609fb

21

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