參數(shù)資料
型號(hào)： LM340K-12
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： 3-Terminal Positive Regulators
中文描述： 12 V FIXED POSITIVE REGULATOR, MBFM2
封裝： METAL CAN, TO-3, 2 PIN
文件頁(yè)數(shù)： 3/20頁(yè)
文件大?。?/td> 205K
代理商： LM340K-12
LM340, A Series
3
MOTOROLA ANALOG IC DEVICE DATA
LM340–5.0
ELECTRICAL CHARACTERISTICS
(Vin = 10 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (TJ = +25
°
C)
IO = 5.0 mA to 1.0 A
VO
4.8
5.0
5.2
Vdc
Line Regulation (Note 2)
8.0 Vdc to 20 Vdc
7.0 Vdc to 25 Vdc (TJ = +25
°
C)
8.0 Vdc to 12 Vdc, IO = 1.0 A
7.3 Vdc to 20 Vdc, IO = 1.0 A (TJ = +25
°
C)
Load Regulation (Note 2)
5.0 mA
≤
IO
≤
1.0 A
5.0 mA
≤
IO
≤
1.5 A (TJ = +25
°
C)
250 mA
≤
IO
≤
750 mA (TJ = +25
°
C)
Regline
–
–
–
–
–
–
–
–
50
50
25
50
mV
Regload
–
–
–
–
–
–
50
50
25
mV
Output Voltage
7.0
≤
Vin
≤
20 Vdc, 5.0 mA
≤
IO
≤
1.0 A, PD
≤
15 W
VO
4.75
–
5.25
Vdc
Quiescent Current
IO = 1.0 A
TJ = +25
°
C
IB
–
–
–
4.0
8.5
8.0
mA
Quiescent Current Change
7.0
≤
Vin
≤
25 Vdc, IO = 500 mA
5.0 mA
≤
IO
≤
1.0 A, Vin = 10 V
7.5
≤
Vin
≤
20 Vdc, IO = 1.0 A
IB
–
–
–
–
–
–
1.0
0.5
1.0
mA
Ripple Rejection
IO = 1.0 A (TJ = +25
°
C)
RR
62
80
–
dB
Dropout Voltage
VI – VO
rO
ISC
Vn
–
1.7
–
Vdc
Output Resistance (f = 1.0 kHz)
–
2.0
–
m
Short Circuit Current Limit (TJ = +25
°
C)
Output Noise Voltage (TA = +25
°
C)
10 Hz
≤
f
≤
100 kHz
–
2.0
–
A
–
40
–
μ
V
Average Temperature Coefficient of Output Voltage
IO = 5.0 mA
TCVO
–
±
0.6
–
mV/
°
C
Peak Output Current (TJ = +25
°
C)
Input Voltage to Maintain Line Regulation (TJ = +25
°
C)
IO = 1.0 A
IO
–
2.4
–
A
7.3
–
–
Vdc
NOTES:
1.Tlow to Thigh = 0
°
to +125
°
C
2.Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately.
Pulse testing with low duty cycle is used.
DEFINITIONS
Line Regulation
– The change in output voltage for a
change in the input voltage. The measurement is made
under conditions of low dissipation or by using pulse
techniques such that the average chip temperature is not
significantly affected.
Load Regulation
– The change in output voltage for a
change in load current at constant chip temperature.
Maximum Power Dissipation
– The maximum total device
dissipation for which the regulator will operate within
specifications.
Quiescent Current
– That part of the input current that is not
delivered to the load.
Output Noise Voltage
– The rms AC voltage at the output,
with constant load and no input ripple, measured over a
specified frequency range.
相關(guān)PDF資料
PDF描述
LM340K-15 3-Terminal Positive Regulators
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM340K-12 制造商:Texas Instruments 功能描述:IC V REG +12V TO-3-2 340
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LM340K15 制造商:Motorola 功能描述:_ 制造商:NATIONAL 功能描述:New
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