3508FE 参数 Datasheet PDF下载

LT3508

BLOCK DIAGRAM

SHDN

V

IN1

CLK1

CLK2

R

T

/SYNC

INT REG

AND REF

MASTER

OSC

1.2μA

TRACK/SS

V

IN

V

IN

C

IN

SLOPE

CLK

SLAVE

OSC

SW

+

–

V

C

0.625V

ERROR

AMP

FB

C

F

C

C

I

LIMIT

CLAMP

PG

GND

Figure 1. Block Diagram of the LT3508 with Associated External Components (One of Two Switching Regulators Shown)

–

+

+

–

R

C

+

+

–

+

R

C1

S

Q

C3

L1

OUT

D1

C1

BOOST

D2

R1

TRACK/SS

0.80V

R2

0.75V

+

75mV

3508 F01

3508fb

7