MIC5201 Micrel Semiconductor, MIC5201 Datasheet - Page 3

• Manufacturer Part Number: MIC5201
• Description: 200mA Low-Dropout Voltage Regulator
• Manufacturer: Micrel Semiconductor

Electrical Characteristics
V
Symbol
V
V
I
I
PSRR
I
I
e
Enable Input
V
V
I
I
Reference (MIC5201 Adjustable Version Only)
V
I
General Note: Devices are ESD sensitive. Handling precautions recommended.
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
July 1998
MIC5201
GND
GND
GNDDO
LIMIT
IL
IH
IL
n
V
V
V
V
V
IN
O
IN
IL
IH
REF
O
O
O
O
O
= V
– V
/ T
/V
/V
/V
/ P
O
O
O
O
OUT
D
Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when
operating the device outside of its rated operating conditions. The maximum allowable power dissipation is a function of the maximum junction
temperature, T
dissipation at any ambient temperature is calculated using: P
will result in excessive die temperature, and the regulator will go into thermal shutdown. The
the MIC5201BM is 160 C/W mounted on a PC board (see “Thermal Considerations” section for further details).
Output voltage temperature coefficient is defined as the worst-case voltage change divided by the total temperature range.
Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regulation in the load
range from 0.1mA to 200mA. Changes in output voltage due to heating effects are covered by the thermal regulation specification.
Dropout Voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at 1V
differential.
Ground pin current is the regulator quiescent current plus pass transistor base current. The total current drawn from the supply is the sum of
the load current plus the ground pin current.
Thermal regulation is defined as the change in output voltage at a time “t” after a change in power dissipation is applied, excluding load or line
regulation effects. Specifications are for a 200mA load pulse at V
+ 1V; I
Parameter
Output Voltage Accuracy
Output Voltage Temperature Coef.
Line Regulation, Fixed
Line Regulation, Adjustable
Load Regulation
Dropout Voltage, Note 4
Quiescent Current
Ground Pin Current
Ripple Rejection
Ground Pin Current at Dropout
Current Limit
Thermal Regulation
Output Noise
Input Voltage Level
Input Voltage Level
Enable Input Current
Enable Input Current
Reference Voltage
Reference Voltage Temp. Coef.
L
= 100 A; C
J(max)
, the junction-to-ambient thermal resistance,
L
= 3.3 F; V
EN
2.0V; T
Condition
Variation from specified V
Note 2
V
V
I
I
I
I
I
I
V
I
I
I
I
I
V
I
V
Note 6
logic low (off)
logic high (on)
V
V
L
L
L
L
L
L
L
L
L
L
L
L
IN
IN
ENABLE
IN
OUT
IL
IH
J
= 0.1mA to 200mA, Note 3
= 100 A
= 20mA
= 50mA
= 100mA
= 200mA
= 100 A
= 20mA
= 50mA
= 100mA
= 200mA
= 100 A, Note 5
= 25 C, bold values indicate –40 C
= V
= V
= 0.5V less than specified V
0.7V
2.0V
= 0V
OUT
OUT
(max)
0.7V (shutdown)
+ 1V to 26V
+ 1V to 16V
IN
3
= (T
JA
= 26V for fixed and V
, and the ambient temperature, T
J(max)
– T
A
OUT
)
JA
OUT
. Exceeding the maximum allowable power dissipation
IN
= 16V for adjustable at t = 10ms.
,
JC
of the MIC5201-x.xBS is 15 C/W and
T
J
A
. The maximum allowable power
+85 C; unless noted
1.223
1.217
Min
2.0
–1
–2
0.004
0.004
1.242
1000
3000
0.04
0.01
0.05
0.01
Typ
130
180
225
270
130
270
500
270
280
100
40
17
75
15
20
1.255
1.267
2000
Max
0.20
0.40
0.20
0.40
0.16
0.30
150
400
400
330
500
0.7
50
1
2
1
MIC5201
ppm/ C
ppm/ C
Micrel
Units
JA
%/W
mV
mV
mV
mV
mV
mA
dB
%
%
%
%
%
%
%
%
V
V
V
V
A
A
A
A
A
A
A
V
A
A
for