Micrel, Inc.
MIC47050
Electrical Characteristics
(4)
V
IN
= V
OUT
+ 0.5V; V
BIAS
= V
OUT
+2.1V; C
OUT
= 1µF; I
OUT
= 100µA; T
J
= 25°C,
bold
values indicate –40°C≤ T
J
≤
+125°C, unless noted.
Parameter
Condition
Min.
Typ.
Max.
Units
V
IN
Line Regulation
Load Regulation
Current Limit
V
IN
= V
OUT
+ 0.5V to 3.6V
I
OUT
= 10mA to 500mA
V
IN
= 2.7V; V
OUT
= 0V
-0.05
0.005
0.2
0.05
0.5
2.5
%/V
%
A
V
Short Circuit Current Limit
Enable Input
0.6
1.0
1.6
0.77
0.67
100
EN Logic Level High
EN Logic Level Low
EN Hysteresis
Enable Bias Current
Turn-on Time
Thermal Protection
0.2
2
10
500
V
mV
A
A
s
C
C
V
EN
≤
0.2V (Regulator Shutdown)
V
EN
= 1.0V (Regulator Enabled)
C
OUT
= 1
F; 90% of typical V
OUT
T
J
Rising
1
6
15
160
20
Over-Temperature Shutdown
Over-Temperature Shutdown Hysteresis
Power Good
Power Good Threshold Voltage
Power Good Hysteresis
Power Good Output Low Voltage
Power Good Leakage Current
Reference Voltage (Adjustable Option Only)
V
OUT
Rising
V
OUT
Falling
I
PG
= 250
A
V
PG
= 5.0V
I
OUT
= 100
A
I
OUT
= 100
A
V
FB
= 0.8V
f = 10Hz to 100kHz; I
OUT
= 100mA; C
OUT
=1
F
f = 10kHz; C
OUT
= 1.0
F, I
OUT
= 100mA
f = 100kHz; C
OUT
= 1.0
F, I
OUT
= 100mA
-1
85
91
89
2
0.02
0.01
95
%
%
%
0.1
+1
V
A
Feedback Reference Voltage
FB Bias Current
Output Voltage Noise and Ripple Rejection
0.394
0.392
0.4
20
63
50
37
0.406
0.408
V
V
nA
V
RMS
Output Voltage Noise
Ripple Rejection
Notes:
dB
dB
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5kΩ in series with 100pF.
4. Specification for packaged product only.
5. Both VIN and VBIAS UVLO thresholds must be met for the output voltage to turn-on. If either of the two input voltages is below the UVLO thresholds,
the output is disabled.
April 2012
5
M9999-040312-B
MICREL [ MICREL SEMICONDUCTOR ]
