MIC5207_07 Datasheet, PDF (5/13 Pages) Micrel Semiconductor – 180mA Low-Noise LDO Regulator

Micrel, Inc.
MIC5207
Symbol Parameter
Enable Input
V_IL
Enable Input Logic-Low Voltage
Condition
Regulator shutdown
V_IH
Enable Input Logic-High
Voltage
I_IL
Enable Input Current
I_IH
Regulator enable
V_IL ≤ 0.4V
V_IL ≤ 0.18V
V_IH ≥ 2.0V
V_IH ≥ 2.0V
Min Typ Max Units
0.4
V
0.18
V
2.0
V
0.01
–1
µA
–2
µA
5
20
µA
25
µA
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 at any T_A (ambient temperature) is P_D(max) = (T_J(max) –T_A) / θ_JA. Exceeding the maximum allowable power
dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. The θ_JA of the SOT-23-5 (M5) is 235°C/W, and the
TO-92 (Z) is 180°C/W (0.4” leads) or 160°C/W (0.25” leads) soldered on a PC board (see “Thermal Considerations” for further details).
4. Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range.
5. 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 180mA. Changes in output voltage due to heating effects are covered by the thermal regulation specification.
6. Dropout Voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at 1Vdifferential.
7. 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.
8. 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 180mA load pulse at V_IN = 16V for t = 10ms.
December 2007
5
M9999-123107