參數(shù)資料
型號: L5953
廠商: STMICROELECTRONICS
元件分類: 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
文件頁數(shù): 28/31頁
文件大小: 420K
代理商: L5953
Obsolete
Product(s)
- Obsolete
Product(s)
Block diagram and electrical specifications
L5953
1
Block diagram and electrical specifications
Figure 1.
Block diagram
Table 2.
Absolute maximum ratings
Symbol
Parameter
Value
Unit
VDD
DC operating supply voltage
-0.6 to 30
V
Transient supply over voltage (250ms)
50
V
VSPI
Supply voltage for SPI I/O
-0.6 to 6
V
IO
Voltage regulator output current
Internally limited
Vinlog
Input voltage (C, D, Q, S, SYNC)
0 to 6
V
RESR
Output capacitor series e.g. resistance
(linear reg.) (allowed range)
From 0.2 to 10
W
Top
Operating temperature range
-40 to 85
°C
Tstg
Storage temperature ranges
-55 to 150
°C
Tj
Operative junction temperature
-40 to 150
°C
Table 3.
Thermal data
Symbol
Parameter
Value
Unit
Rthj-case
Thermal resistance junction to case
1.7
°C/W
VOLTAGE WARNING
SPI INTERFACE
REC2
LINEAR VOLTAGE
REGULATOR
1.5-3.3V/300mA
HSD1
HSD2
COMP
FB
GATEOUT
GATEIN
VSW
DRAINOUT
STRAP
ADJ
VSTBY
GND
SWGND
S1
W1
S2
W2
VDD-LIN
REC1
ST-BY LINEAR VOLTAGE
REGULATOR
3.3-5V/250mA
PWM
STEP DOWN
REGULATOR
2.5-10V/1A
OSCILLATOR &
SYNC
STCAP
CT
RES
VDD-SW
IRQ
Q
D
S
C
VLR
FBLR
VIN
SYNC
VSPI
DGND
FGND
D01AU1330A
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