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ACT4455 数据表(PDF) 13 Page - Active-Semi, Inc

部件名 ACT4455
功能描述  36V/5A Step Down DC/DC Converter
PDF  15 Pages
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制造商  ACTIVE-SEMI [Active-Semi, Inc]
网页  http://www.active-semi.com
标志 ACTIVE-SEMI - Active-Semi, Inc

ACT4455 数据表(HTML) 13 Page - Active-Semi, Inc

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ACT4455
Rev 2, 21-Nov-12
Innovative Power
TM
- 13 -
www.active-semi.com
Copyright © 2012 Active-Semi, Inc.
TYPICAL PERFORMANCE CHARACTERISTICS CONT’D
(Circuit of Figure 7, RCS1 = RCS2 = 50mΩ, L = 18µH, CIN = 150µF, COUT = 680µF, TA = 25°C, unless otherwise specified.)
Short Circuit
CH1
CH2
CH1: VOUT, 5V/div
CH2: IL, 2A/div
CH3: SW, 10V/div
TIME: 400µs/div
CH3
VIN = 12V
IOUT1 = 2.1A
IOUT2 = 0A
Short Circuit
CH1
CH2
CH1: VOUT, 5V/div
CH2: IL, 2A/div
CH3: SW, 10V/div
TIME: 400µs/div
CH3
VIN = 12V
IOUT1 = 2.1A
IOUT2 = 2.1A
Short Circuit Recovery
CH1
CH2
CH1: VOUT, 2V/div
CH2: IL, 2A/div
CH3: SW, 10V/div
TIME: 1ms/div
CH3
VIN = 12V
IOUT1 = 2.1A
IOUT2 = 0A
Short Circuit Recovery
CH1
CH2
CH1: VOUT, 2V/div
CH2: IL, 2A/div
CH3: SW, 10V/div
TIME: 1ms/div
CH2
VIN = 12V
IOUT1 = 2.1A
IOUT2 = 2.1A
Hiccup Mode
CH1
CH2
CH1: VOUT, 5V/div
CH2: SW, 5V/div
TIME: 1s/div
VIN = 12V
IOUT1 = 2.1A
IOUT2 = 2.1A
CH1: VOUT Ripper, 200mV/div
CH2: IOUT, 2A/div
TIME: 400µs/div
Load Step Waveforms
CH1
CH2
VIN = 12V
IOUT1 = 0-2.1A
IOUT2 = 2.1A



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