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參數(shù)資料
| 型號： | L7920C |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Negative Voltage Regulator(輸出負(fù)電壓穩(wěn)壓器) |
| 中文描述： | 負(fù)電壓穩(wěn)壓器（輸出負(fù)電壓穩(wěn)壓器） |
| 文件頁數(shù)： | 7/24頁 |
| 文件大?。?/td> | 822K |
| 代理商： | L7920C |
L79xxC
Electrical characteristics
7/24
5
Electrical characteristics
Table 4.
Electrical characteristics of L7905C
(refer to the test circuits, T
J
= 0 to 125 °C, V
I
= -10 V,
I
O
= 500 mA, C
I
= 2.2 μF, C
O
= 1 μF unless otherwise specified)
Parameter
Test conditions
Symbol
Min.
Typ.
Max.
Unit
V
O
Output voltage
T
J
= 25°C
I
O
= -5 mA to -1 A, P
O
≤
15 W
V
I
= -8 to -20 V
-4.8
-5
-5.2
V
V
O
Output voltage
-4.75
-5
-5.25
V
Δ
V
O(1)
1.
Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
Line regulation
V
I
= -7 to -25 V, T
J
= 25°C
100
mV
V
I
= -8 to -12 V, T
J
= 25°C
50
Δ
V
O(1)
Load regulation
I
O
= 5 mA to 1.5 A, T
J
= 25°C
100
mV
I
O
= 250 to 750 mA, T
J
= 25°C
50
I
d
Quiescent current
T
J
= 25°C
3
mA
Δ
I
d
Quiescent current change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= -8 to -25 V
1.3
Δ
V
O
/
Δ
T
Output voltage drift
I
O
= 5 mA
-0.4
mV/°C
eN
Output noise voltage
B = 10Hz to 100KHz, T
J
= 25°C
Δ
V
I
= 10 V, f = 120Hz
I
O
= 1 A, T
J
= 25°C,
Δ
V
O
= 100 mV
100
μV
SVR
Supply voltage rejection
54
60
dB
V
d
Dropout voltage
1.4
V
I
sc
Short circuit current
2.1
A
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| L7920CD2T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:NEGATIVE VOLTAGE REGULATORS |
| L7920CD2T-TR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Negative Fixed Voltage Regulator |
| L7920CP | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:NEGATIVE VOLTAGE REGULATORS |
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| L7920CV | 功能描述:線性穩(wěn)壓器 - 標(biāo)準(zhǔn) 20V 1.5A Negative 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(fù)載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
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