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參數(shù)資料
| 型號： | TA4802S |
| 廠商： | Toshiba Corporation |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 1.8 V, 2 V, 2.5 V, 3 V, 3.3 V, 5 V Three-Terminal Low Dropout Voltage Regulator with Output Current of 1 A |
| 中文描述： | 1.8伏，二伏，2.5伏，3伏，3.3伏，5伏三端低壓差穩(wěn)壓器的輸出電流為1安培 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 265K |
| 代理商： | TA4802S |
TA48018,02,025,03,033,05F/S
2004-07-01
6
TA4805F/S
Electrical Characteristics
(Unless otherwise specified, C
IN
= 0.33
μ
F, C
OUT
= 10
μ
F, T
j
= 25°C)
Characteristics
Symbol
Test Conditions
Min
Typ.
Max
Unit
V
IN
= 7 V, I
OUT
= 0.5 A
6.0 V
<
V
IN
<
12 V, 5 mA
<
I
OUT
<
1 A,
0°C
<
T
j
<
125°C
6.0 V
<
V
IN
<
12 V, I
OUT
= 0.5 A
V
IN
= 7.0 V, 5 mA
<
I
OUT
<
1 A
6.0 V
<
V
IN
<
12 V, I
OUT
= 0 A
6.0 V
<
V
IN
<
12 V, I
OUT
= 1 A
4.85
5.0
5.15
Output voltage
V
OUT
4.775
5.0
5.225
V
Line regulation
Reg
line
―
5
20
mV
Load regulation
Reg
load
―
5
20
mV
―
0.8
1.8
Quiescent current
I
B
―
10
20
mA
V
IN
= 2.1 V, I
OUT
= 0 A
―
1.3
5
Starting quiescent current
I
Bstart
V
IN
= 3.0 V, I
OUT
= 1 A
―
14
30
mA
Output noise voltage
V
NO
V
IN
= 7.0 V, I
OUT
= 50 mA
10 Hz
<
f
<
100 kHz
6.0 V
<
V
IN
≤
12 V, I
OUT
= 50 mA
f = 120 Hz
―
150
―
μ
Vrms
Ripple rejection
R.R.
50
64
―
dB
I
OUT
= 0.5 A
―
0.3
0.5
Dropout voltage
V
D
I
OUT
= 1 A
―
0.4
―
V
Average temperature coefficient of
output voltage
T
CVO
V
IN
= 7.0 V, I
OUT
= 5 mA,
0°C
<
T
j
<
125°C
―
0.45
―
mV/°C
Electrical Characteristics for All Products
Generally, the characteristics of power supply ICs change according to temperature fluctuations.
The specification T
j
= 25
℃
is based on a state where temperature increase has no effect (assuming no fluctuation
in the characteristics) as ascertained by pulse tests.
Standard Application Circuit
Be sure to connect a capacitor near the input terminal and output terminal between both terminals and GND.
The capacitances should be determined experimentally. In particular, adequate investigation should be made so
that there is no problem even in high or low temperature.
1
2
V
IN
TA48xxF/S
3
V
OUT
C
OUT
33
μ
F
C
IN
0.33
μ
F
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