Datasheet MIC4680 (Microchip) - 4

Micrel, Inc. MIC4680 Parameter Condition Min Typ Shutdown Input Logic
Level regulator off 2 1.6
1.0 0.8 V VSHDN = 5V (regulator off) –10 –0.5 10 µA VSHDN = 0V (regulator on) –10 –1.5 10 µA regulator on Shutdown Input Current
Thermal Shutdown 160 Max Units
V °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. Absolute maximum rating is intended for voltage transients only, prolonged dc operation is not recommended.
4. VIN(min) = VOUT + 2.5V or 4V whichever is greater.
5. Devices are ESD sensitive. Handling precautions recommended.
6. Measured on 1" square of 1 oz. copper FR4 printed circuit board connected to the device ground leads.
7. Test at TA = +85°C, guaranteed by design, and characterized to TJ = +125°C. Test Circuit
+12V SHUTDOWN
ENABLE Device Under Test
2 IN 1 SHDN SW 3 FB 4 68µH I GND
SOIC-8 5–8 Current Limit Test Circuit Shutdown Input Behavior
OFF
ON
0.8V
0V 2V
1V 1.6V VIN(max) Shutdown Hysteresis March 2008 4 M9999-032808