l5953 STMicroelectronics, l5953 Datasheet - Page 7

• Manufacturer Part Number: l5953
• Description: Multiple Switching Voltage Regulator
• Manufacturer: STMicroelectronics

L5953
Figure 2.
Table 4.
Pin number
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
PIN connections
PIN function
FGND
S2
S1
W2
W1
RES
CT
D
C
Q
S
DGND
IRQ
HSD2
VDD-LIN
N.C.
HSD1
SWGND
VDD-SW
DRAINOUT
Pin name
VDD-LIN
SWGND
DGND
FGND
HSD2
HSD1
RES
N.C.
IRQ
W2
W1
CT
S2
S1
D
C
Q
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Analog ground
Input voltage for LVW2
Input voltage for LVW1
LVW2 output
LVW1 output
Reset
Timing capacitor
SPI serial input
SPI clock
SPI serial output
SPI chip select
SPI ground
Interrupt
HSD2 output
Battery
Not connected
HSD1 output
Switching ground
PWM battery
Drain of the external MOS
D02AU1345A
Block diagram and electrical specifications
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
Function
ADJ
VSTBY
VSPI
STCAP
FB
COMP
FBLR
VIN
VLR
SYNC
STRAP
GATEOUT
GATEIN
VSW
GND
N.C.
DRAINOUT
VDD-SW
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