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MIC5256_10 Datasheet, PDF (5/13 Pages) Micrel Semiconductor – 150mA μCap LDO with Error Flag
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Micrel, Inc.
MIC5256
Electrical Characteristics(5) (Continued)
VIN = VOUT + 1V, VEN = VIN; IOUT = 100µA; TJ = 25°C, bold values indicate –40°C ≤ TJ ≤ +125°C; unless noted.
Symbol Parameter
Condition
Min.
Typ.
Error Flag
VFLG
Low Threshold
High Threshold
% of VOUT (Flag ON)
% of VOUT (Flag OFF)
90
VOL
Output Logic-Low Voltage
IL = 100µA, fault condition
0.02
IFL
Flag Leakage Current
flag off, VFLG = 6V
0.01
Thermal Protection
Thermal-Shutdown
Temperature
150
Thermal-Shutdown Hysteresis
10
Max.
96
0.1
Units
%
%
V
µA
°C
°C
Notes:
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, and the regulator will go into thermal shutdown. The θJA of the MIC5255-x.xBM5 (all versions) is
235°C/W on a PC board (see “Thermal Considerations” section for further details).
4. Devices are ESD sensitive. Handling precautions recommended.
5. Specification for packaged product only.
6. 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 150mA. Changes in output voltage due to heating effects are covered by the thermal regulation specification.
7. Dropout Voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at 1Vdifferential.
For outputs below 2.7V, dropout voltage is the input-to-output voltage differential with the minimum input voltage 2.7V. Minimum input operating
voltage is 2.7V.
8. Ground pin current is the regulator quiescent current. The total current drawn from the supply is the sum of the load current plus the ground pin
current.
Test Circuit
August 2010
5
M9999-080510
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