MIC5254_07 Datasheet, PDF (4/11 Pages) Micrel Semiconductor – Dual 150mA μCap LDO with Error Flag Outputs

Micrel, Inc.
MIC5254
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 T_A (ambient temperature) is P_D(max) = (T_J(max) – T_A) / θ_JA. Exceeding the maximum allowable power
dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. The θ_JA of the MIC5254-SJBMM is 200°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
V_INA
1µF
V_INB
1µF
MIC5254
9
10
VINA OUTA
2 _{ENA FLGA} 1
3 _{GNDA OUTB} 8
6 _{VINA FLGB} 4
5 _{ENB GNDB} 7
FLGA
0.01µF
FLGB
0.01µF
V_OUTA
1µF
Ceramic
V_OUTB
1µF
Ceramic
December 2007
4
M9999-121107