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L5953 Datasheet(PDF) 3 Page - STMicroelectronics

Part # L5953
Description  MULTIPLE SWITCHING VOLTAGE REGULATOR
PDF  24 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L5953 Datasheet(HTML) 3 Page - STMicroelectronics

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L5953
PIN FUNCTION
Pin Number
Pin Name
Function
1
FGND
Analog Ground
2
S2
Input Voltage for LVW2
3
S1
Input Voltage for LVW1
4W2
LVW2 Output
5W1
LVW1 Output
6
RES
Reset
7
CT
Timing capacitor
8
D
SPI Serial Input
9
C
SPI Clock
10
Q
SPI Serial Output
11
S
SPI Chip Select
12
DGND
SPI Ground
13
IRQ
Interrupt
14
HSD2
HSD2 Output
15
VDD-LIN
Battery
16
N.C.
Not Connected
17
HSD1
HSD1 Output
18
SWGND
Switching Ground
19
VDD-SW
PWM Battery
20
DRAINOUT
Drain of the exrternal MOS
21
N.C.
Not Connected
22
GND
Ground
23
VSW
Source of the external MOS
24
GATEIN
Gate of the internal MOS
25
GATEOUT
Switching Output for power mos gate
26
STRAP
Bootstrap
27
SYNC
Synchronization
28
VLR
REG2 Linear Voltage Regulator Output
29
VIN
REG2 Linear Voltage Regulator Input
30
FBLR
REG2 Linear Voltage Regulator Feedback
31
COMP
PWM Compensation
32
FB
PWM Feedback
33
STCAP
ST-CAP
34
VSPI
Supply Voltage for SPI I/O
35
VSTBY
REG1 Stand-by Linear Voltage Regulator Output
36
ADJ
3.3V/5V REG1 Voltage Select



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