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參數(shù)資料
| 型號： | LP2951 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 線性穩(wěn)壓 |
| 英文描述： | 100 mA, Low Power Low Dropout Voltage Regulator(100mA,低功耗，低壓差穩(wěn)壓器) |
| 中文描述： | 100毫安，低功耗，低壓差穩(wěn)壓器（100mA的，低功耗，低壓差穩(wěn)壓器） |
| 文件頁數(shù)： | 20/24頁 |
| 文件大小： | 244K |
| 代理商： | LP2951 |
LP2950, LP2951, NCV2951
http://onsemi.com
5
ELECTRICAL CHARACTERISTICS (continued) (Vin = VO + 1.0 V, IO = 100 mA, CO = 1.0 mF, TA = 25°C [Note 8],
unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
Regline
%
LP2950C-XX/LP2951C/LP2951C-XX/NCV2951C*
-
0.08
0.20
LP2950AC-XX/LP2951AC/LP2951AC-XX/NCV2951AC*
-
0.04
0.10
Load Regulation (IO = 100 mA to 100 mA)
Regload
%
LP2950C-XX/LP2951C/LP2951C-XX/NCV2951C*
-
0.13
0.20
LP2950AC-XX/LP2951AC/LP2951AC-XX/NCV2951AC*
-
0.05
0.10
Dropout Voltage
VI - VO
mV
IO = 100 mA
-
30
80
IO = 100 mA
-
350
450
Supply Bias Current
ICC
IO = 100 mA
-
93
120
mA
IO = 100 mA
-
4.0
12
mA
Dropout Supply Bias Current (Vin = VO(nom) - 0.5 V,
ICCdropout
-
110
170
mA
Current Limit (VO Shorted to Ground)
ILimit
-
220
300
mA
Thermal Regulation
Regthermal
-
0.05
0.20
%/W
Output Noise Voltage (10 Hz to 100 kHz) (Note 10)
Vn
mVrms
CL = 1.0 mF
-
126
-
CL = 100 mF
-
56
-
LP2951A/LP2951AC Only
Reference Voltage (TA = 25°C)
Vref
V
LP2951C/LP2951C-XX/NCV2951C*
1.210
1.235
1.260
LP2951AC/LP2951AC-XX/NCV2951AC*
1.220
1.235
1.250
Reference Voltage (TA = -40 to +125°C)
Vref
V
LP2951C/LP2951C-XX/NCV2951C*
1.200
-
1.270
LP2951AC/LP2951AC-XX/NCV2951AC*
1.200
-
1.260
Reference Voltage (TA = -40 to +125°C)
Vref
V
IO = 100 mA to 100 mA, Vin = 23 to 30 V
LP2951C/LP2951C-XX/NCV2951C*
1.185
-
1.285
LP2951AC/LP2951AC-XX/NCV2951AC*
1.190
-
1.270
Feedback Pin Bias Current
IFB
-
15
40
nA
Error Comparator
Output Leakage Current (VOH = 30 V)
Ilkg
-
0.01
1.0
mA
Output Low Voltage (Vin = 4.5 V, IOL = 400 mA)
VOL
-
150
250
mV
Upper Threshold Voltage (Vin = 6.0 V)
Vthu
40
45
-
mV
Lower Threshold Voltage (Vin = 6.0 V)
Vthl
-
60
95
mV
Hysteresis (Vin = 6.0 V)
Vhy
-
15
-
mV
Shutdown Input
Input Logic Voltage
Vshtdn
V
Logic “0” (Regulator “On”)
0
-
0.7
Logic “1” (Regulator “Off”)
2.0
-
30
Shutdown Pin Input Current
Ishtdn
mA
Vshtdn = 2.4 V
-
35
50
Vshtdn = 30 V
-
450
600
Regulator Output Current in Shutdown Mode
Ioff
-
3.0
10
mA
(Vin = 30 V, Vshtdn = 2.0 V, VO = 0, Pin 6 Connected to Pin 7)
6. The Junction-to-Ambient Thermal Resistance is determined by PCB copper area per Figure 29.
7. ESD data available upon request.
8. Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
9. VO(nom) is the part number voltage option.
10. Noise tests on the LP2951 are made with a 0.01
mF capacitor connected across Pins 7 and 1.
*NCV prefix is for automotive and other applications requiring site and change control.
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