Parameter |
Conditions (Note 2) |
Min |
Typ |
Max |
Units |
Output Voltage |
-25°C £ TJ £ 85°C Full Operating Temperature |
0.985 |V0| 0.98 |V0| |
V0 |
1.015 |V0| 1.02 |V0| |
V |
Output Voltage |
100mA £ IL £ 100mA, TJ £ TJMAX |
0.976|V0| |
V0 |
1.024 |V0| |
|
Output Voltage Temperature Coefficient |
(Note 1) |
|
50 |
150 |
ppm/°C |
Line Regulation (Note 3) |
V0 + 1V £ Vin £ 30V (Note 4) |
|
0.04 |
0.4 |
% |
Load Regulation (Note 3) |
100mA £ IL £ 100mA |
|
0.1 |
0.3 |
% |
Dropout Voltage (Note 5) |
IL=100 mA IL=100 mA |
|
50 380 |
80 450 |
mV |
Ground Current |
IL=100 mA IL=100 mA |
|
75 8 |
120 12 |
mA mA |
Dropout Ground Current |
Vin=V0 - 0.5V, IL=100 mA |
|
110 |
170 |
mA |
Current Limit |
Vout=0 |
|
160 |
200 |
mA |
Thermal Regulation |
|
|
0.05 |
0.2 |
%/W |
Output Noise, 10Hz to 100KHz |
CL=1mF CL=200mF CL=3.3mF (Bypass=0.01 mF pins 7 to 1 (LP2951-XX)) |
|
430 160 100 |
|
mV rms |
8-pin Versions only |
|||||
Reference Voltage |
|
1.21 |
1.235 |
1.26 |
V |
Reference Voltage |
Over Temperature (Note 6) |
1.185 |
|
1.285 |
|
Feedback Pin Bias Current |
|
|
20 |
40 |
nA |
Reference Voltage Temperature Coefficient |
(Note 7) |
|
50 |
|
ppm/°C |
Feedback Pin Bias Current Temperature Coefficient |
|
|
0.1 |
|
nA/°C |
Error Comparator |
|||||
Output Leakage Current |
Voh=30V |
|
0.01 |
1.0 |
mA |
Output Low Voltage |
Vin=4.5V, IOL=400 mA |
|
150 |
250 |
mV |
Upper Threshold Voltage |
(Note 8) |
40 |
60 |
|
|
Lower Threshold Voltage |
(Note 8) |
|
75 |
95 |
|
Hysteresis |
(Note 8) |
|
15 |
|
|
Shutdown Input |
|||||
Input Logic Voltage |
Low (Regulator ON) High (Regulator OFF) |
2 |
1.3 |
产品规格︰
0.1A 低压差正电源(带控制信号)固定输出电压稳压电路
输入电压为30V, 输出电压为2.85, 3.0, 3.3, 5.0V 等多种型号
LP2950: TO-92封装
LP2951: SOP-8封装
产品优点︰ 低压差, 低功耗, 高精度