參數(shù)資料
型號(hào): L5953
廠商: STMICROELECTRONICS
元件分類(lèi): 穩(wěn)壓器
英文描述: 1.2 A SWITCHING REGULATOR, 425 kHz SWITCHING FREQ-MAX, PDSO36
封裝: LEAD FREE, SOP-36
文件頁(yè)數(shù): 29/31頁(yè)
文件大小: 420K
代理商: L5953
Obsolete
Product(s)
- Obsolete
Product(s)
L5953
Block diagram and electrical specifications
Figure 2.
PIN connections
Table 4.
PIN function
Pin number
Pin name
Function
1
FGND
Analog ground
2
S2
Input voltage for LVW2
3
S1
Input voltage for LVW1
4
W2
LVW2 output
5
W1
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 external MOS
FGND
S2
S1
W2
IRQ
VDD-LIN
HSD2
N.C.
HSD1
DRAINOUT
N.C.
GND
GATEIN
VSW
STCAP
VSPI
VSTBY
ADJ
18
16
17
15
6
5
4
3
2
21
22
31
32
33
35
34
36
20
1
19
SWGND
VDD-SW
D02AU1345A
Q
DGND
S
GATEOUT
SYNC
STRAP
9
8
7
28
29
30
C
VLR
10
27
W1
D
CT
VIN
FB
FBLR
14
12
11
23
25
26
RES
COMP
13
24
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