LP2951CN 查看數據表（PDF） - ON Semiconductor
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LP2951CN Datasheet PDF : 22 Pages
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LP2950, LP2951, NCV2951
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
Line Regulation (Vin = VO(nom) +1.0 V to 30 V) (Note 9)
LP2950C−XX/LP2951C/LP2951C−XX/NCV2951C*
LP2950AC−XX/LP2951AC/LP2951AC−XX/NCV2951AC*
Regline
−
−
%
0.08
0.20
0.04
0.10
Load Regulation (IO = 100 mA to 100 mA)
LP2950C−XX/LP2951C/LP2951C−XX/NCV2951C*
LP2950AC−XX/LP2951AC/LP2951AC−XX/NCV2951AC*
Regload
−
−
%
0.13
0.20
0.05
0.10
Dropout Voltage
IO = 100 mA
IO = 100 mA
Supply Bias Current
IO = 100 mA
IO = 100 mA
Dropout Supply Bias Current (Vin = VO(nom) − 0.5 V,
IO = 100 mA) (Note 9)
VI − VO
−
−
ICC
−
−
ICCdropout
−
mV
30
80
350
450
93
120
mA
4.0
12
mA
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)
CL = 1.0 mF
CL = 100 mF
LP2951A/LP2951AC Only
Vn
mVrms
−
126
−
−
56
−
Reference Voltage (TA = 25°C)
LP2951C/LP2951C−XX/NCV2951C*
LP2951AC/LP2951AC−XX/NCV2951AC*
Vref
V
1.210
1.235
1.260
1.220
1.235
1.250
Reference Voltage (TA = − 40 to +125°C)
LP2951C/LP2951C−XX/NCV2951C*
LP2951AC/LP2951AC−XX/NCV2951AC*
Vref
V
1.200
−
1.270
1.200
−
1.260
Reference Voltage (TA = − 40 to +125°C)
IO = 100 mA to 100 mA, Vin = 23 to 30 V
LP2951C/LP2951C−XX/NCV2951C*
LP2951AC/LP2951AC−XX/NCV2951AC*
Vref
V
1.185
−
1.285
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
Logic “0” (Regulator “On”)
Logic “1” (Regulator “Off”)
Vshtdn
0
V
−
0.7
2.0
−
30
Shutdown Pin Input Current
Vshtdn = 2.4 V
Vshtdn = 30 V
Ishtdn
−
−
mA
35
50
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)
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
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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