Micrel, Inc.
MIC5232
Absolute Maximum Ratings(1)
Operating Ratings(2)
Supply Input Voltage (VIN)................................0V to 8V
Enable Input Voltage (VEN)...............................0V to 8V
Power Dissipation (PD).................... Internally Limited(3)
Junction Temperature (TJ).................. –40°C to +125°C
Storage Temperature (TS).................. –65°C to +150°C
Lead Temperature (soldering, 5 sec.)................. 260°C
ESD Rating(4)......................................................... ±2kV
Supply voltage (VIN)...................................... 2.7V to 7V
Enable Input voltage (VEN)...............................0V to VIN
Thermal Resistance
TSOT-23-5 (θJA)......................................... 235°C/W
MLF-6 (θJA) .................................................. 90°C/W
Electrical Characteristics(5)
VIN = VOUT + 1.0V, COUT = 0.47µF, IOUT = 100µA, TJ = 25°C, bold values indicate –40°C to +125°C, unless noted.
Parameter
Conditions
Min
-2.0
-3.0
Typ
Max
+2.0
+3.0
Units
%
Output Voltage Accuracy
Variation from nominal VOUT
Variation from nominal VOUT; -40C to +125C
%
Output Voltage Temp. Coefficient
Line Regulation
40
ppm/C
%/V
VIN = VOUT +1V to7V;
IOUT = 10µA to 10mA
0.02
0.25
Load Regulation
0.2
1.0
1.5
%
%
Dropout Voltage(6)
IOUT = 100µA
IOUT = 10mA
60
100
mV
mV
300
Ground Pin Current
IOUT = 10µA
1.8
0.1
70
3
1.5
120
1
µA
µA
Ground Pin Current in Shutdown
Current Limit
VEN < 0.18V
VOUT = 0V
mA
µA
Reverse Current (VOUT > VIN)
Ripple Rejection
VOUT = VIN + 1V
f = 10Hz
0.02
55
dB
f = 1kHz
35
dB
Output Voltage Noise
Enable Input
COUT =0.47µF; 10Hz to 100kHz
400
µVrms
Enable Input Voltage
Logic Low (Regulator Shutdown)
Logic High (Regulator Enabled)
VIL < 0.18V (Regulator Shutdown)
VIH > 1.4V (Regulator Enabled)
COUT = 0.47µF
0.18
V
V
1.4
Enable Input Current
1
1
nA
nA
ms
Turn-on Time(7)
Notes:
0.75
1.5
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. The maximum allowable power dissipation of any TA (ambient temperature) is PD(max) = (TJ(max) – TA) / θJA. Exceeding the maximum allowable
power dissipation will result in excessive die temperature.
4. Devices are ESD sensitive. Handling precautions recommended.
5. Specification for packaged product only.
6. Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal VOUT. For outputs below
2.7V, dropout voltage is the input-to-output differential with the minimum input voltage 2.7V.
7. Turn-on time is measured from 10% of the positive edge of the enable signal to 90% of the rising edge of the output voltage of the regulator.
4
M9999-061812-C
June 2012
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