ACT2802 datasheet(20/21 Pages) ACTIVE-SEMI

20 / 21 page

ACT2802

Rev 0, 21-Jan-14

Innovative PowerTM

- 20 -

www.active-semi.com

Active-Semi Confidential―Do Not Copy or Distribute

ActiveSwitcher

TM is a trademark of Active-Semi.

TYPICAL PERFORMANCE CHARACTERISTICS CONT’D

CH1

CH2

VIN = 5.0V

VBAT = 4.1V

(Schematic as show in Figure 20, Ta = 25°C, unless otherwise specified)

CH3

CH1: VIN, 5V/div

CH2: VnPG, 5V/div

CH3: vout, 2V/div

TIME: 1s/div

Boost Load Transient (80mA-1A-80mA)

CH1

CH2

VBAT = 3.4V

VOUT = 5.0V

IIOST = 2.4A

Boost Load Transient (1A-2.1A-1A)

CH1

CH2

VBAT = 4.2V

VOUT = 5.0V

IIOST = 1.3A

CH1: VOUT, 100mV/div

CH2: IOUT, 1A/div

TIME: 1ms/div

CH1: VOUT, 100mV/div

CH2: IOUT, 1A/div

TIME: 1ms/div

VBAT = 3.4V

VOUT = 5.0V

IIOST = 2.4A

VBAT = 4.1V

VOUT = 5.0V

IOUT = 2.4A

CH1

CH2

VBAT = 3.4V

VOUT = 5.0V

IOUT = 1.0A

CH1

CH2

CH1: VOUT, 20mV/div

CH2: VSW, 2V/div

TIME: 1us/div

VBAT = 3.4V

VOUT = 5.0V

IOUT = 2.4A

Transition Between Buck Mode

and Boost Mode

SW and Output Waveforms in Boost Mode

CH1: VOUT, 20mV/div

CH2: VSW, 2V/div

TIME: 1us/div

VIN = 5.0V

VBAT = 4.1V

VIN

VnPG

Vout

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