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LD2979 Datasheet(PDF) 3 Page - STMicroelectronics

Part No. LD2979
Description  VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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LD2979 Datasheet(HTML) 3 Page - STMicroelectronics

   
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ELECTRICAL CHARACTERISTICS FOR LD2979 (refer to the test circuits, Ta =25
oC,
VIN =VO(NOM) +1, CO =1
µF, IO = 1mA, Vinh =2V(*)) (unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Vo
Output Voltage
VIN = 3.85 V
1< Io < 50 mA,
-25 < Ta < 125
oC
2.793
2.736
2.85
2. 907
2. 964
V
V
Vo
Output Voltage
VIN =4 V
1< Io < 50 mA,
-25 < Ta < 125
oC
2.940
2.880
33. 060
3. 120
V
V
Vo
Output Voltage
VIN = 4.2 V
1< Io < 50 mA,
-25 < Ta < 125
oC
3.136
3.072
3.2
3. 264
3. 328
V
V
Vo
Output Voltage
VIN = 4.3 V
1< Io < 50 mA,
-25 < Ta < 125
oC
3.234
3.168
3.3
3. 366
3. 432
V
V
Vo
Output Voltage
VIN = 4.8 V
1< Io < 50 mA,
-25 < Ta < 125
oC
3.724
3.648
3.8
3. 876
3. 952
V
V
Vo
Output Voltage
VIN =6 V
1< Io < 50 mA,
-25 < Ta < 125
oC
4.9
4.8
55.1
5.2
V
V
Iout
Output Current Limit
100
mA
∆Vo
Line Regulation
VO(NOM) +1 < VIN < 16V,
Io =1 mA
-25 < Ta <125
oC
0. 028
0. 064
%/ Vin
Id
Quiescent Current
ON MODE
Io =0 mA
Io = 0 mA
-25 < Ta < 125
oC
Io =50 mA
Io = 50 mA
-25 < Ta < 125
oC
80
500
110
170
700
1300
µA
µA
µA
µA
OFF MODE (*)
Vihn < 0.18 V
Vihn < 0.18 V -25 < Ta < 125
oC
0
1
µA
µA
SVR
Supply Voltage Rejection
Io = 50 mA, f = 120 Hz, Cout =10
µF63
dB
Vd
Dropout Voltage
Io =0 mA
Io = 0 mA
-25 < Ta < 125
oC
Io =1 mA
Io = 1 mA
-25 < Ta < 125
oC
Io =10 mA
Io = 10 mA
-25 < Ta < 125
oC
Io =50 mA
Io = 50 mA
-25 < Ta < 125
oC
6
30
100
200
12
18
60
90
200
300
400
600
mV
mV
mV
mV
mV
mV
mV
mV
Vil
Control Input Logic Low
-25 < Ta <125
oC (*)
Device Off
0.18
V
Vih
Control Input Logic High
-25 < Ta <125
oC (*)
Device On
2
V
Ii
Control Input Current
Vinhibit = 0 V (*)
Vinhibit = 5 V,
-25 < Ta < 125
oC (*)
0
5
-1
15
µA
µA
eN
Output Noise Voltage (RMS)
BW = 300 Hz to 50 KHz, Cout =10
µF160
µV
(*) Note: Only for types in SOT23-5L
LD2979
3/9


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