LTC1874 데이터 시트보기 (PDF) - Linear Technology

부품명

상세내역

일치하는 목록

LTC1874

Dual Constant Frequency Current Mode Step-Down DC/DC Controller

Linear Technology 

W

FUNCTIONAL DIAGRA

VIN1 SENSE1–

1

2

Controller #1

LTC1874

+

ICMP

–

SLOPE

OSC

COMP

RS1

R

Q

SWITCHING

LOGIC AND

BLANKING

S

CIRCUIT

PVIN1

16

PGATE1

15

PGND1

14

VIN

0.3V

GND1

3

FREQ

FOLDBACK

SHORT-CIRCUIT

DETECT

0.3V

0.15V

0.5µA

BURST

+

CMP

SLEEP

–

OVP

EAMP

VIN

VOLTAGE

REFERENCE

UNDERVOLTAGE

LOCKOUT

0.35V

VREF

0.8V

+

SHDN

CMP

–

SHDN

UV

VREF

+

60mV

VREF

0.8V

VIN

VFB1

4

1.2V

GND2

11

VIN2

SENSE2–

9

10

13

ITH/RUN1

Controller #2

CONTROLLER #2 IS THE SAME AS CONTROLLER #1

5

ITH/RUN2

PVIN2

8

PGATE2

7

PGND2

6

VFB2

12

1874FD

5

Share Link: