參數(shù)資料
型號： LM340T-12
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 基準電壓源/電流源
英文描述： Series 3-Terminal Positive Regulators
中文描述： 12 V FIXED POSITIVE REGULATOR, PSFM3
封裝： POWER, PLASTIC, TO-220, 3 PIN
文件頁數(shù)： 11/20頁
文件大小： 205K
代理商： LM340T-12
LM340, A Series
11
MOTOROLA ANALOG IC DEVICE DATA
LM340–18
ELECTRICAL CHARACTERISTICS
(Vin = 27 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
17.3
18
18.7
Vdc
Line Regulation
21.5 Vdc to 33 Vdc
21 Vdc to 33 Vdc (TJ = +25
°
C)
24 Vdc to 30 Vdc, IO = 1.0 A
21 Vdc to 33 Vdc, IO = 1.0 A (TJ = +25
°
C)
Load Regulation
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
–
–
–
–
–
–
–
–
180
180
90
180
mV
Regload
–
–
–
–
–
–
180
180
90
mV
Output Voltage
21
≤
Vin
≤
33 Vdc, 5.0 mA
≤
IO
≤
1.0 A, PD
≤
15 W
VO
17.1
–
18.9
Vdc
Quiescent Current
IO = 1.0 A
TJ = +25
°
C
IB
–
–
–
4.0
8.5
8.0
mA
Quiescent Current Change
21
≤
Vin
≤
33 Vdc, IO = 500 mA
5.0 mA
≤
IO
≤
1.0 A, Vin = 27 V
21
≤
Vin
≤
33 Vdc, IO = 1.0 A
IB
–
–
–
–
–
–
1.0
0.5
1.0
mA
Ripple Rejection
IO = 1.0 mA (TJ = +25
°
C)
RR
53
69
–
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
–
500
–
A
–
110
–
μ
V
Average Temperature Coefficient of Output Voltage
IO = 5.0 mA
TCVO
–
±
2.3
–
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
21
–
–
Vdc
NOTE:
1. Tlow to Thigh = 0
°
to +125
°
C
相關PDF資料
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相關代理商/技術參數(shù)
參數(shù)描述
LM340T-12 制造商:Texas Instruments 功能描述:IC REGULATOR +12V
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LM340T-12/LB01 制造商:Texas Instruments 功能描述:LDO Regulator Pos 12V 1A 3-Pin(3+Tab) TO-220 Rail
LM340T-12/LB06 功能描述:線性穩(wěn)壓器 - 標準 RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調節(jié): 最大輸入電壓:5.5 V 線路調整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L
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