LTC1530IS8-1.9 查看數據表（PDF） - Linear Technology

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LTC1530IS8-1.9

High Power Synchronous Switching Regulator Controller

Linear Technology 

BLOCK DIAGRA

LTC1530

COMP 4

INTERNAL

OSCILLATOR

ICOMP

LOGIC AND

THERMAL SHUTDOWN

DISDR

POWER DOWN

–

PWM

+

1 PVCC

8 G1

7 G2

ISS

CSS

MHCL

MSS

gm = 2millimho

ERR

+–

MIN

MAX

VREF

HCL

MONO

VREF – 3%

VREF + 3%

–

CC

+

6 IFB

5 IMAX

IMAX

LVC

FIXED VOUT

1.9V

2.5V

2.8V

3.3V

R1

23.4k

44.4k

54.9k

68.4k

R2

43.2k

43.2k

43.2k

40.8k

FB

3 VSENSE

FB R1

3 VOUT

R2

FOR FIXED

VOLTAGE

VERSIONS

VREF/2

VREF

VREF – 3%

VREF + 3%

VREF/2

VREF

1530 BD

TEST CIRCUITS

VIN

5V

C1

100pF

RC

8.2k

CC

0.01µF

750Ω

+

0.1µF

PVCC

12V

10µF

PVCC

IMAX

G1

COMP

IFB

LTC1530-2.5

G2

100Ω

VOUT

GND

*SUMIDA CDRH127-2R4

**AVX TPSE337M006R0100

***SANYO 10MV1200GX

+

Q1

LO*

Si4410DY 2.4µH

Q2

+

Si4410DY

CIN***

1200µF

×2

CO**

330µF

×8

VOUT

2.5V

6A

1530 F02

PVCC

12V

+

10µF

0.1µF

PVCC

IFB

G1

COMP

COMP

IMAX

LTC1530

G2

VSENSE/VOUT

GND

NC

NC

NC

VFB

1530 F03

Figure 2

Figure 3

7

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