參數資料
型號： LDO57
廠商： 意法半導體
元件分類： 基準電壓源/電流源
英文描述： IP Library: High Output Current, Low power, 400mA Low Dropout Voltage Regulator
中文描述： IP庫：高輸出電流，低功耗，400mA的低壓差穩(wěn)壓器
文件頁數： 3/4頁
文件大?。?/td> 110K
代理商： LDO57
LDO_57
3/4
1
10
100
FREQUENCY (Hz)
1000
10000
100000
1000000
-70
-60
-50
-40
-30
-20
P
150mV
170mV
200mV
2V
ELECTRICAL CHARACTERISTICS :
(Stand-by mode)
3V < V
IN
< 5.5V, -30°C < T
A
< +85°C, V
REF
= 2.8V, C
OUT
= 4.7
μ
F ±20%, 20m
< ESR < 0.6
,
I
LOAD
= 500
μ
A.
Typical case :
V
IN
= 4V, Ambient temperature, I
LOAD
= 500
μ
A.
TYPCIAL CHARACTERISTICS
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Output current in stand-by mode
I
OUTSTDBY
I
STDBY
PSRR
STY
500
μ
A
Quiescent Current in stand-by mode
I
LOAD
= 500
μ
A
f = 10KHz
20
30
Power Supply Rejection Ratio
in stand-by mode
35
45
dB
Line Regulation in stand-by mode
Lir
STDBY
I
LOAD
= 500
μ
A,
V
IN
= 2.9V to 5.5V
I
LOAD
= 100
μ
A - 500
μ
A
2
6
mV
Load Regulation
Ldr
STDBY
50
55
mV
Figure 7 :
PSRR vs Frequency
for Various Voltage Drop
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