Micrel, Inc.
LP2950/2951
Parameter
Dropout Voltage
Condition
Note 5,
I
L
= 100µA
Note 5,
I
L
= 100mA
Min
Typ
50
380
100
8
180
160
0.05
430
160
100
Max
80
150
450
600
150
200
12
14
250
310
220
220
0.20
Units
mV
mV
mV
mV
µA
µA
mA
mA
µA
µA
mA
mA
%/W
µV
RMS
µV
RMS
µV
RMS
Ground Current
I
L
= 100µA
I
L
= 100mA
Dropout Current
Current Limit
Thermal Regulation
Output Noise
V
IN
= 4.5V, I
L
= 100µA
V
OUT
= 0V
Note 13
10Hz to 100kHz, C
L
= 1µF
10Hz to 100kHz, C
L
= 200µF
10Hz to 100kHz, C
L
= 3.3µF,
0.01µF bypass Feedback to Output
Reference Voltage
LP295x-02 (±0.5%)
LP295x-03 (±1%)
LP2951-4.8 (±1%)
1.220
1.200
1.210
1.200
1.210
1.200
1.190
1.185
1.185
1.235
1.235
1.235
1.250
1.260
1.260
1.270
1.260
1.270
1.270
1.285
1.285
V
V
V
V
V
V
V
V
V
nA
nA
ppm/°C
ppm/°C
ppm/°C
nA/°C
Reference Voltage
LP295x-02 (±0.5%),
Note 7
LP295x-03 (±1%),
Note 7
LP2951-4.8 (±1%),
Note 7
Feedback Bias Current
Reference Voltage
LP295x-02 (±0.5%),
Note 12
LP295x-03 (±1%),
Note 12
LP2951-4.8 (±1%),
Note 12
Feedback Bias Current
Temperature Coefficient
Output Leakage Current
Output Low Voltage (Flag)
Upper Threshold Voltage
Lower Threshold Voltage
Hysteresis
V
OH
= 30V
V
IN
= 4.5V, I
OL
= 200µA
Note 6
Note 6
Note 6
40
25
20
20
50
50
0.1
0.01
150
60
75
15
40
60
1.00
2.00
250
400
µA
µA
mV
mV
mV
mV
95
140
mV
mV
mV
September 2008
4
M9999-091208
MICREL [ MICREL SEMICONDUCTOR ]
