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L4945 Datasheet(PDF) 2 Page - STMicroelectronics

Part # L4945
Description  5V VERY LOW DROP VOLTAGE REGULATOR
Download  6 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4945 Datasheet(HTML) 2 Page - STMicroelectronics

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ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
Vi
DC Input 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
τr Rise Time Constant = 33ms
Low Energy Spike :
trise =1
µs, tfall = 500µs, RSOURCE ≥ 10Ω
fr Repetition Frequency = 5Hz
35
–18
80
–80
± 100
V
V
V
V
V
TJ
Junction Temperature Range
– 40 to 150
°C
TOP
Operating Temperature Range
– 40 to 125
°C
Tstg
Storage Temperature Range
– 55 to 150
°C
Note: The circuit is ESD protected according to MIL-STD-883C.
THERMAL DATA
Symbol
Parameter
Value
Unit
Rth j-case
Thermal Resistance Junction-case
Max
3
°C/W
PIN CONNECTION (Top view)
L4945
2/6


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