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MIC5200 Datasheet

  • MIC5200

  • Micrel Semiconductor [100mA Low-Dropout Voltage Regulator P...

  • 90.04KB

  • MICREL   MICREL

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MIC5200
Micrel
Electrical Characteristics
Limits in standard typeface are for T
J
= 25擄C and limits in
boldface
apply over the junction temperature range of 鈥?0擄C to +125擄C.
Unless otherwise specified, V
IN
= V
OUT
+ 1V, I
L
= 1mA, C
L
= 3.3碌F, and V
ENABLE
鈮?/div>
2.0V
Symbol
V
O
鈭哣
O
鈭員
鈭哣
O
V
IN
鈭哣
O
V
OUT
V
IN
鈥?V
O
Parameter
Output Voltage
Accuracy
Output Voltage
Temperature Coef.
Line Regulation
Load Regulation
Conditions
Variation from specified V
OUT
(Note 2)
V
IN
= V
OUT
+ 1 V to 26V
I
L
= 0.1mA to 100mA (Note 3)
Min
鈥?
鈥?
40
0.004
0.04
Typical
Max
1
2
150
0.10
0.40
0.16
0.30
Units
%
ppm/擄C
%
%
Dropout Voltage
(Note 4)
I
L
= 100碌A(chǔ)
I
L
= 20mA
I
L
= 30mA
I
L
= 50mA
I
L
= 100mA
V
ENABLE
鈮?/div>
0.7V (Shutdown)
V
ENABLE
鈮?/div>
2.0V, I
L
= 100碌A(chǔ)
I
L
= 20mA
I
L
= 30mA
I
L
= 50mA
I
L
= 100mA
V
IN
= 0.5V less than specified V
OUT
I
L
= 100碌A(chǔ) (Note 5)
V
OUT
= 0V
(Note 6)
100
17
130
150
190
230
0.01
130
270
330
500
1000
70
270
250
0.05
100
mV
350
10
350
碌A(chǔ)
碌A(chǔ)
I
GND
I
GND
Quiescent Current
Ground Pin Current
3
1500
dB
330
碌A(chǔ)
mA
%/W
碌V
PSRR
I
GNDDO
I
LIMIT
鈭哣
O
鈭哖
D
e
n
Ripple Rejection
Ground Pin
Current at Dropout
Current Limit
Thermal Regulation
Output Noise
ENABLE Input
V
IL
I
IL
I
IH
Note 1:
Input Voltage Level
Logic Low
Logic High
ENABLE Input Current
OFF
ON
V
IL
鈮?/div>
0.7V
V
IH
鈮?/div>
2.0V
0.7
2.0
0.01
15
1
50
碌A(chǔ)
V
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
J (MAX)
, the junction-to-ambient thermal resistance,
胃
JA
, and the ambient
temperature, T
A
. The maximum allowable power dissipation at any ambient temperature is calculated using: P
(MAX)
=
(T
J(MAX)
鈥?T
A
)
梅 胃
JA
. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the
regulator will go into thermal shutdown. The
胃
JC
of the MIC5200-xxBS is 15擄C/W and
胃
JA
for the MIC5200BM is 160擄C/W
mounted on a PC board (see 鈥淭hermal Considerations鈥?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 100mA. 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 100mA load pulse at V
IN
= 26V for t = 10ms.
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
3-125
July 1998

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