MIC3975(2003) 데이터 시트보기 (PDF) - Micrel

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MIC3975
(Rev.:2003)

750mA µCap Low-Voltage Low-Dropout Regulator

Micrel 

MIC3975

Micrel

Symbol

Parameter

Adjustable Output Only

Reference Voltage

Adjust Pin Bias Current

Reference Voltage

Temp. Coefficient

Adjust Pin Bias Current

Temp. Coefficient

Condition

Note 10

Note 11

Min Typ Max Units

1.228

1.215

1.203

1.240

40

20

1.252 V

1.265 V

1.277 V

80

nA

120 nA

ppm/°C

0.1

nA/°C

Note 1. Exceeding the absolute maximum ratings may damage the device.

Note 2. The device is not guaranteed to function outside its operating rating.

Note 3. Devices are ESD sensitive. Handling precautions recommended.

Note 4.

Note 5.

Note 6.

PD(max) = (TJ(max) – TA) ÷ θJA, where θJA depends upon the printed circuit layout. See “Applications Information.”

Output voltage temperature coefficient is ∆VOUT(worst case) ÷ (TJ(max) – TJ(min)) where TJ(max) is +125°C and TJ(min) is –40°C.

VDO = VIN – VOUT when VOUT decreases to 98% of its nominal output voltage with VIN = VOUT + 1V. For output voltages below 2.25V, dropout

voltage is the input-to-output voltage differential with the minimum input voltage being 2.25V. Minimum input operating voltage is 2.25V.

Note 7. IGND is the quiescent current. IIN = IGND + IOUT.

Note 8. VEN ≤ 0.8V, VIN ≤ 8V, and VOUT = 0V.

Note 9. For a 2.5V device, VIN = 2.250V (device is in dropout).

Note 10. VREF ≤ VOUT ≤ (VIN – 1V), 2.25V ≤ VIN ≤ 16V, 10mA ≤ IL ≤ 750mA, TJ = TMAX.

Note 11. 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 200mA load pulse at VIN = 16V for t = 10ms.

Note 12. Specification for packaged product only.

MIC3975

4

February 2003

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