MIC2920A Datasheet, PDF (3/9 Pages) Micrel Semiconductor – 400mA Low-Dropout Voltage Regulator

MIC2920A/29201/29202/29204
Micrel
Electrical Characteristics
Limits in standard typeface are for T_J = 25°C and limits in boldface apply over the full operating temperature range. Unless
otherwise specified, V_IN = V_OUT + 1V, I_L = 1mA, C_L = 10µF. Adjustable version are set for an output of 5V. The MIC29202 V_SHUTDOWN
≤ 0.7V. The eight pin MIC29204 is configured with the Adjust pin tied to the 5V Tap, the Output is tied to Output Sense (V_OUT
= 5V), and V_SHUTDOWN ≤ 0.7V.
Symbol Parameter
Conditions
Min Typical Max Units
V_O
Output Voltage
Variation from factory trimmed V_OUT
–1
Accuracy
–2
1
%
2
1mA ≤ I_L ≤ 400mA, across temp. range
–2.5
2.5
MIC2920A-12 and 29201-12 only
–1.5
1.5
–3
3
1mA ≤ I_L ≤ 400mA, across temp. range
–4
4
∆V_O
Output Voltage
(Note 2)
20
100 ppm/°C
∆T
Temperature Coef. V > 10V only
OUT
80
350
∆V_O
Line Regulation
V = V + 1V to 26V
IN
OUT
0.03
0.10
%
V_O
0.40
∆V_O
Load Regulation I_L = 1 to 250mA (Note 3)
0.04
0.16
%
V_O
0.30
3
V –V
IN
O
Dropout Voltage
(Note 4)
I = 1mA
L
100
150
mV
180
I_L = 100mA
I = 250mA
L
I_L = 400mA
V_OUT > 10V only
V_OUT > 10V only
250
350
370
500
450
600
750
I
GND
I_GNDDO
I_LIMIT
∆V_O
∆P_D
e_n
Ground Pin Current
(Note 5)
I = 1mA
L
I_L = 100mA
I_L = 250mA
I_L = 400mA
Ground Pin
Current at Dropout
(Note 5)
V_IN = 0.5V less than designed V_OUT
(V_OUT ≥ 3.3V)
I_O = 1mA
Current Limit
V_OUT = 0V
(Note 6)
Thermal Regulation (Note 7)
Output Noise
Voltage
(10Hz to 100kHz)
I_L = 100mA
C_L = 10µF
C
L
=
100µF
140
200
µA
300
1.3
2
mA
2.5
5
9
12
13
15
180
400
µA
425
1000 mA
1200
0.05
0.2 %/W
400
µV RMS
260
January 1998
3-11