MIC4576-3.3BT_98 查看數據表（PDF） - Micrel

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MIC4576-3.3BT_98

200kHz Simple 3A Buck Voltage Regulator

Micrel 

MIC4576

Parameter

MIC4576 / -3.3 / -5.0

Oscillator Frequency

Saturation Voltage

Condition

IOUT = 3A

Current Limit

peak current, tON ≤ 3µs; VFB = 0V

Standby Quiescent Current

SHDN Input Logic Level

VSHDN = 5V (regulator off), VFB = 0V

VOUT = 0V (regulator off)

VOUT = 3.3V or 5V (regulator on)

SHDN Input Current

VSHDN = 5V (regulator off)

VSHDN = 0V (regulator on)

General Note: Devices are ESD protected, however, handling precautions are recommended.

Note 1: VOUT = 5V

Micrel

Min Typ Max Units

180 200 220 kHz

1.7

2.3

V

2.5

V

4.2

5.2

6.9

A

3.5

7.5

A

50

200

µA

2.2

1.4

V

2.4

V

1.2

1.0

V

0.8

V

4

30

µA

–10 0.01 10

µA

April 1998•

4-131

MIC4576

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