ACT4533C datasheet(14/16 Pages) ACTIVE-SEMI

部件名	ACT4533C

功能描述	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter

PDF	16 Pages

Scroll/Zoom	100%

制造商	ACTIVE-SEMI [Active-Semi, Inc]

网页	http://www.active-semi.com

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14 / 16 page

ACT4533C

Rev 1, 14-Nov-14

Innovative Power

- 14 -

www.active-semi.com

SW vs. Output Voltage Ripple

TYPICAL PERFORMANCE CHARACTERISTICS CONT’D

Start up with VIN

Load transient (80mA-1A-80mA)

Output Short test

VIN = 24V

VOUT = 5V

IOUT = 2.4A

CH1

CH2

CH1: VRIPPLE, 50mV/div

CH2: SW, 10V/div

TIME: 4µs/div

VIN = 12V

VOUT = 5V

IOUT = 2.4A

CH1

CH2

CH1: VIN, 5V/div

CH2: VOUT, 2V/div

TIME: 400µs//div

Start up with VIN

CH1

CH2

CH1: VIN, 10V/div

CH2: VOUT, 2V/div

TIME: 400µs//div

CH1

CH2

CH1: VOUT, 50mV/div

CH2: IOUT, 1A/div

TIME: 400µs//div

Load transient (1A-2.4A-1A)

CH1

CH2

CH1: VOUT, 100mV/div

CH2: IOUT, 1A/div

TIME: 400µs//div

VIN = 12V

VOUT = 5V

IISET = 2.65A

CH1

CH2

CH1: VOUT, 2V/div

CH2: IL, 1A/div

TIME: 100µs//div

VIN = 24V

VOUT = 5V

IOUT = 2.4A

VIN = 12V

VOUT = 5V

IISET = 2.65A

VIN = 24V

VOUT = 5V

IISET = 2.65A

VIN = 24V

VOUT = 5V

IISET = 2.65A

(Schematic as shown in Figure 9, Ta = 25°C, unless otherwise specified)

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