參數(shù)資料
型號(hào): LM2687
文件頁數(shù): 2/9頁
文件大?。?/td> 244K
代理商: LM2687
Pin Description
Pin No.
1
2
3
4
5
Name
V
IN
GND
V
NEG
V
NSW
CE
Function
Power supply input voltage.
Power supply ground.
Negative output voltage created by inverting V
05
.
V
NEG
output connected through a series switch, NSW.
Chip enable input. This pin is high for normal operation and low for shutdown. (See
Shutdown and Load Disconnect section in the Detailed Device Description division).
Positive side shutdown input. This pin is low for normal operation and high for positive
side shutdown and V
PSW
load disconnect. (See Shutdown and Load Disconnect section
in the Detailed Device Description division).
Negative side shutdown input. This pin is low for normal operation and high for negative
side shutdown and V
NSW
load disconnect. (See Shutdown and Load Disconnect section
in the Detailed Device Description division).
The negative terminal of inverting charge-pump capacitor, C2.
The positive terminal of inverting charge-pump capacitor, C2.
Regulated +5V output.
V
05
output connected through a series switch, PSW.
Voltage Doubler Output. (2.85V
V
IN
5.4V. See Voltage Doubler section).
The positive terminal of doubling charge-pump capacitor, C1.
The negative terminal of doubling charge-pump capacitor, C1.
6
SDP
7
SDN
8
9
10
11
12
13
14
C
2
C
2+
V
05
V
PSW
V
DBL
C
1+
C
1
L
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