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
V
O
Parameter
Output Voltage
Accuracy
Conditions
Variation from factory trimmed V
OUT
1mA
≤
I
L
≤
400mA, across temp. range
MIC2920A-12 and 29201-12 only
1mA
≤
I
L
≤
400mA, across temp. range
(Note 2)
V
OUT
> 10V only
V
IN
= V
OUT
+ 1V to 26V
I
L
= 1 to 250mA (Note 3)
Min
–1
–2
–2.5
–1.5
–3
–4
Typical
Max
1
2
2.5
1.5
3
4
100
350
0.10
0.40
0.16
0.30
150
180
Units
%
∆V
O
∆T
∆V
O
V
O
∆V
O
V
O
V
IN
– V
O
Output Voltage
Temperature Coef.
Line Regulation
Load Regulation
20
80
0.03
0.04
ppm/°C
%
%
3
mV
Dropout Voltage
(Note 4)
I
L
= 1mA
I
L
= 100mA
V
OUT
> 10V only
I
L
= 250mA
V
OUT
> 10V only
I
L
= 400mA
100
250
350
370
500
450
600
750
200
300
2
2.5
9
12
15
400
µA
mA
I
GND
Ground Pin Current
(Note 5)
I
L
= 1mA
I
L
= 100mA
I
L
= 250mA
I
L
= 400mA
140
1.3
5
13
180
I
GNDDO
Ground Pin
Current at Dropout
(Note 5)
Current Limit
V
IN
= 0.5V less than designed V
OUT
(V
OUT
≥
3.3V)
I
O
= 1mA
V
OUT
= 0V
(Note 6)
µA
I
LIMIT
425
1000
1200
0.2
mA
∆V
O
∆P
D
e
n
Thermal Regulation (Note 7)
0.05
%/W
Output Noise
Voltage
(10Hz to 100kHz)
I
L
= 100mA
C
L
= 10µF
C
L
= 100µF
400
260
µV
RMS
January 1998
3-11
MICREL [ MICREL SEMICONDUCTOR ]
