SC1156SW.TR(2001) 데이터 시트보기 (PDF) - Semtech Corporation
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SC1156SW.TR
(Rev.:2001)
(Rev.:2001)
Semtech Corporation
SC1156SW.TR Datasheet PDF : 7 Pages
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SC1156
POWER MANAGEMENT
Pin Configuration
Ordering Information
TOP VIEW
GND
1
20
VID0
VCC
2
19
VID1
OVP
3
18
VID2
PWRGOOD
4
17
VID3
CS-
5
16
VID4
CS+
6
15
VOSENSE
PGNDH
7
14
EN
DH
8
13
BSTH
NC
9
12
BSTL
PGNDL
10
11
DL
Device (1)
SC1156SW.TR
Package
SO-20
Temp Range (T )
J
0° to 125°C
Note:
(1) Only available in tape and reel packaging. A reel
contains 1000 devices.
(20 Pin SOIC)
Pin Descriptions
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Pin Name
GND
VCC
OVP
PWRGOOD (1)
CS-
CS+
PGNDH
DH
NC
PGNDL
DL
BSTL
BSTH
EN (1)
VOSENSE
VID4 (1)
VID3 (1)
VID2 (1)
VID1 (1)
VID0 (1)
Pin Function
Small Signal Analog and Digital Ground
Chip Supply Voltage
High Signal out if VO>setpoint + 20%
Open collector logic output, high if VO within 10% of setpoint
Current Sense Input (negative)
Current Sense Input (positive)
Power Ground for High Side Switch
High Side Driver Output
Not Connected
Power Ground for Low Side Switch
Low Side Driver Output
Vcc for Low Side Driver (Boost)
Vcc for High Side Driver (Boost)
Logic low shuts down the converter
Feedback
Programming Input (MSB)
Programming Input
Programming Input
Programming Input
Programming Input (LSB)
NOTE:
(1) All logic inputs and outputs are open collector TTL compatible.
© 2000 Semtech Corp.
3
www.semtech.com
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