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參數(shù)資料
| 型號： | SC1173CSW |
| 廠商： | Semtech Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| 中文描述： | 無電容，NMOS管，150mA的低壓差穩(wěn)壓器的反向電流保護 |
| 文件頁數(shù)： | 3/12頁 |
| 文件大?。?/td> | 119K |
| 代理商： | SC1173CSW |
PROGRAMMABLE SYNCHRONOUS DC/DC
CONVERTER WITH LOW DROPOUT
REGULATOR CONTROLLER
SC1172/3
1999 SEMTECH CORP.
October 25, 1999
652 MITCHELL ROAD NEWBURY PARK CA 91320
3
Note:
(1) All logic level inputs and outputs are open
collector TTL compatible.
PIN DESCRIPTION
Pin
1
2
3
4
5
6
7
Pin Name
AGND
NC
NC
LDOS
VCC
OVP
PWRGOOD
(1)
Pin Function
Small Signal Analog and Digital Ground
No connection
No Connection
Sense Input for LDO
Input Voltage
High Signal out if V
O
>setpoint +20%
Open collector logic output, high if V
O
within 10% of setpoint
Current Sense Input (negative)
Current Sense Input (positive)
Power Ground for High Side Switch
High Side Driver Output
Power Ground for Low Side Switch
Low Side Driver Output
Supply for Low Side Driver
Supply for High Side Driver
Logic low shuts down the converter;
High or open for normal operation.
Top end of internal feedback chain
Programming Input (MSB)
Programming Input
Programming Input
Programming Input
Programming Input (LSB)
+12V for LDO section
Gate Drive Output LDO
8
9
10
11
12
13
14
15
16
CS-
CS+
PGNDH
DH
PGNDL
DL
BSTL
BSTH
EN
(1)
17
18
19
20
21
22
23
24
VOSENSE
VID4
(1)
VID3
(1)
VID2
(1)
VID1
(1)
VID0
(1)
LDOV
GATE
Top View
(24 Pin SOIC)
NC
NC
AGND
OVP
VCC
LDOS
CS-
CS+
PWRGOOD
PGNDL
DH
PGNDH
LDOV
VID0
VID1
GATE
VID3
VID4
VID2
VOSENSE
EN
BSTH
DL
BSTL
2
3
4
1
6
7
5
8
9
10
12
11
23
22
21
24
19
18
20
17
16
15
13
14
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