MC33466 데이터 시트보기 (PDF) - Motorola => Freescale

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MC33466

FIXED FREQUENCY PWM MICROPOWER DC–to–DC CONVERTER

Motorola => Freescale 

MC33466

Figure 21. Flyback Application

Startup Circuit

MMBT2222ALT1

1.5 k

3.3 V

Vin

100 µF

MMBT2907ALT1

1.0 k

100

3

Lx

VO

3.3 V

MC33466H–33KT1

VLx Limiter

Drive

PWM

Controller

50 kHz

Oscillator

Phase

Comp

Soft–Start

Vref

2

Output

100 µF

1 Gnd

10

MOTOROLA ANALOG IC DEVICE DATA

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