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L4921 数据表(PDF) 2 Page - STMicroelectronics

部件名 L4921
功能描述  VERY LOWDROP ADJUSTABLE REGULATORS
PDF  7 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L4921 数据表(HTML) 2 Page - STMicroelectronics

  L4921 Datasheet HTML 1Page - STMicroelectronics L4921 Datasheet HTML 2Page - STMicroelectronics L4921 Datasheet HTML 3Page - STMicroelectronics L4921 Datasheet HTML 4Page - STMicroelectronics L4921 Datasheet HTML 5Page - STMicroelectronics L4921 Datasheet HTML 6Page - STMicroelectronics L4921 Datasheet HTML 7Page - STMicroelectronics  
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ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
Vi
DC Input Operating Voltage
DC Reverse Input Voltage
Transient Input Overvoltages:
Load Dump:
5ms
≤ trise ≤ 10ms
τf Fall time constant = 100ms
RSOURCE
≥ 0.5Ω
Field Decay:
5ms
≤ tfall ≤ 10ms, RSOURCE ≥ 10Ω
τf Rise time constant = 33ms
35
V
TJ,TSTG Junction and Storage Temperature Range
– 55 to 150
°C
PIN CONNECTIONS (top view)
TEST AND APPLICATION CIRCUIT
THERMAL DATA
Symbol
Parameter
Minidip
(4 + 4)
Pentawatt
Rth j-amb
Rth j-pins
Rth j-case
Thermal Resistance Junction-ambient
Thermal Resistance Junction-pins
Thermal Resistance Junction-case
Max
Max
Max
80
°C/W
15
°C/W
60
°C/W
3.5
°C/W
C = 100
µF is required for stability (ESR ≤ 3Ω over T range)
R2 = 6.2K
Ω.
L4920/L4921
2/7



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