AOZ1021(2007) Ver la hoja de datos (PDF) - Alpha and Omega Semiconductor

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AOZ1021
(Rev.:2007)

EZBuck™ 3A Synchronous Buck Regulator

Alpha and Omega Semiconductor 

AOZ1021

Typical Performance Characteristics

Circuit of Figure 1. TA = 25°C, VIN = VEN = 12V, VOUT = 3.3V unless otherwise specified.

Light Load Operation

Full Load (CCM) Operation

Vin ripple

0.1V/div

Vo ripple

20mV/div

IL

1A/div

VLX

10V/div

1µs/div

1µs/div

Vin ripple

0.1V/div

Vo ripple

20mV/div

IL

1A/div

VLX

10V/div

Startup to Full Load

Vin

10V/div

Short Circuit Protection

LX

10V/div

Vo

2V/div

1ms/div

50% to 100% Load Transient

lin

1A/div

Vo Ripple

100mV/div

lo

1A/div

100µs/div

Short Circuit Recovery

Vo

2V/div

IL

2A/div

LX

10V/div

Vo

2V/div

IL

2A/div

100µs/div

2ms/div

Rev. 1.1 November 2007

www.aosmd.com

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