參數(shù)資料
型號(hào)： Il2931-9
廠商： INTEGRAL JOINT STOCK COMPANY
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： LOW DROPOUT VOLTAGE REGULATORS
中文描述： 低壓降穩(wěn)壓器
文件頁數(shù)： 1/2頁
文件大小： 115K
代理商： IL2931-9
IL2931 SERIES
1
LOW DROPOUT VOLTAGE REGULATORS
adjust-
able output voltage regulators that are specifically designed to maintain
proper regulation with an extremely low input-to-output voltage
differential. These devices are capable of supplying output currents in
excess of 100 mA and feature a low bias current of 0.4 mA at 10 mA
output.
Designed primarily to survive in the harsh automotive
environment, these devices will protect all external load circuitry from
battery jump starts, and excessive line transients during load dump.
This series also includes internal current limiting, thermal shutdown,
and additionally, is able to withstand temporary power-up with mirror-
image insertion.
Due to the low dropout voltage and bias current specifications,
the LM2931 series is ideally suited for battery powered industrial and
consumer equipment where an extension of useful battery life is
desirable. The ‘C’ suffix adjustable output regulators feature an output
inhibit pin which is extremely useful in microprocessor-based systems.
Input-to-Output Voltage Differential of Less Then 0.6 V at 100mA
Output Current in Excess of 100 mA
Low Bias Current
60 V Load Dump Protection
-50 V Reverse Transient Protection
Internal Current Limiting with Thermal Shutdown
Temporary Mirror-Image Protection
Ideally Suited for Battery Powered Equipment
Ordering Information
Device
Voltage
Il2931-5
5.0 V
Il2931-9
9.0 V
The LM2931 series consists of positive fixed and
Maximum Ratings
Rating
Symbol
Vin
Vin(r)
-Vin(r)
Value
40
60
-50
Unit
Vdc
Vpk
Vpk
Input Voltage Continuos
Transient Input Voltage (r
≤
100 ms)
Transient Reverse Polarity Input Voltage
1,0% Duty Cycle, r
≤
100 ms
Power Dissipation Case TO-220AA (TO-92)
T
A = +
25
°
C
Thermal Resistance Junction to Ambient
Thermal Resistance Junction to Case
Power Dissipation Case TO-220AB
T
A = +
25
°
C
Thermal Resistance Junction to Ambient
Thermal Resistance Junction to Case
Tested Operating Junction Temperature Range
Storage Temperature Range
PD
R
Θ
JA
R
Θ
JC
PD
R
Θ
JC
R
Θ
JC
TJ
Tstg
Internally Limited
178
83
Internally Limited
65
5.0
-40 to +125
-65 to +150
Watts
°
C/W
°
C/W
Watts
°
C/W
°
C/W
°
C
C
TO-226AA /
TO-92
Pin 1. Output
2.Ground
3.Input
Pin 1. Input
2. Ground
3. Output
(Heatsnk
surface connected
to Pin 2.)
TO-220 AB
o**
100
μ
F
in*
0.1
μ
F
Vout
Vin
IL2931
Standard application
Output
Package Case
Number
TO-226AA/TO92, TO-220AB
TO-226AA/TO92, TO-220AB
Tolerance
+5%
+5%
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