參數(shù)資料
型號: LD2979M28
廠商: 意法半導體
元件分類: 基準電壓源/電流源
英文描述: VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT
中文描述: 極低降穩(wěn)壓器與抑制研究
文件頁數(shù): 3/9頁
文件大?。?/td> 86K
代理商: LD2979M28
ELECTRICALCHARACTERISTICS FOR LD2979
(refer to the test circuits, T
a
= 25
o
C,
V
IN
= V
O(NOM)
+1, C
O
= 1
μ
F, I
O
= 1mA,V
inh
= 2V
(*)
) (unlessotherwise specified)
Symbol
Parameter
V
o
OutputVoltage
V
IN
= 3.85V
1 < I
o
< 50 mA,
V
o
OutputVoltage
V
IN
= 4 V
1 < I
o
< 50 mA,
V
o
OutputVoltage
V
IN
= 4.2V
1 < I
o
< 50 mA,
V
o
OutputVoltage
V
IN
= 4.3V
1 < I
o
< 50 mA,
V
o
OutputVoltage
V
IN
= 4.8V
1 < I
o
< 50 mA,
V
o
OutputVoltage
V
IN
= 6 V
1 < I
o
< 50 mA,
I
out
OutputCurrent Limit
V
o
LineRegulation
V
O(NOM)
+1 < V
IN
< 16V,
-25< T
a
< 125
o
C
I
d
Quiescent Current
ON MODE
I
o
= 0 mA
I
o
= 0 mA
I
o
= 50 mA
I
o
= 50 mA
OFF MODE(*)
V
ihn
< 0.18V
V
ihn
< 0.18V -25< T
a
<125
o
C
SVR
Supply Voltage Rejection
I
o
= 50 mA, f= 120Hz, C
out
= 10
μ
F
V
d
Dropout Voltage
I
o
= 0 mA
I
o
= 0 mA
I
o
= 1 mA
I
o
= 1 mA
I
o
= 10 mA
I
o
= 10 mA
I
o
= 50 mA
I
o
= 50 mA
V
il
Control Input Logic Low
-25< T
a
< 125
o
C(*)
V
ih
Control Input Logic High
-25< T
a
< 125
o
C(*)
I
i
Control Input Current
V
inhibit
=0 V (*)
V
inhibit
=5 V,
eN
OutputNoise Voltage (RMS)
BW = 300 Hz to 50 KHz, C
out
= 10
μ
F
(*) Note: Only fortypes inSOT23-5L
Test Conditions
Min.
2.793
2.736
2.940
2.880
3.136
3.072
3.234
3.168
3.724
3.648
4.9
4.8
100
Typ.
2.85
Max.
2.907
2.964
3.060
3.120
3.264
3.328
3.366
3.432
3.876
3.952
5.1
5.2
Unit
V
V
V
V
V
V
V
V
V
V
V
V
mA
%/V
in
-25< T
a
< 125
o
C
-25< T
a
< 125
o
C
3
-25< T
a
< 125
o
C
3.2
-25< T
a
< 125
o
C
3.3
-25< T
a
< 125
o
C
3.8
-25< T
a
< 125
o
C
5
I
o
= 1 mA
0.028
0.064
-25< T
a
< 125
o
C
-25< T
a
< 125
o
C
80
500
110
170
700
1300
μ
A
μ
A
μ
A
μ
A
0
1
μ
A
μ
A
dB
mV
mV
mV
mV
mV
mV
mV
mV
V
V
μ
A
μ
A
μ
V
63
6
-25< T
a
< 125
o
C
-25< T
a
< 125
o
C
-25< T
a
< 125
o
C
-25< T
a
< 125
o
C
30
100
200
12
18
60
90
200
300
400
600
0.18
DeviceOff
DeviceOn
2
-25< T
a
< 125
o
C (*)
0
5
-1
15
160
LD2979
3/9
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