ACT4088US-T データシートの表示（PDF） - Active-Semi, Inc

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ACT4088US-T

28V, 1.5A, 1.4MHz Step-Down DC/DC Converter in SOT23-6

Active-Semi, Inc 

ACT4088

Rev 2, 15-Nov-12

Figure 3:

ACT4088 Optimized for Minimal External Components

The ACT4088 with provides excellent AC and DC results across a wide range of external component combinations. The circuit of

Figure 3 can be used to generate a 5V output from a 12V input utilizing a smaller (i.e. lower-cost) output capacitor while maintaining

good performance.

Figure 4:

Circuit of Figure 3 (ILOAD = 150mA to 850mA)

Circuit of Figure 3

ILOAD = 150mA to 850mA

CH1

CH2

CH1: ILOAD, 500mA/div

CH2: VOUT, 100mV/div (AC Coupled)

TIME: 200µs/div

Figure 5:

Circuit of Figure 3 (ILOAD = 1A)

CH1

Circuit of Figure 3

ILOAD = 1A

CH2

CH1: VSW, 10V/div

CH2: VOUT, 20mV/div (AC Coupled)

TIME: 400ns/div

Innovative PowerTM

-9-

www.active-semi.com

Copyright © 2012 Active-Semi, Inc.

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