LTC4080X 查看數據表（PDF） - Linear Technology

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LTC4080X

500mA Standalone Li-Ion Charger with Integrated 300mA Synchronous Buck in 3mm × 3mm DFN

Linear Technology 

LTC4080X

TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C, VCC = 5V, VBAT = 3.8V, unless otherwise

specified)

Output Voltage Transient

Step Response (PWM Mode)

Output Voltage Waveform

when Switching Between Burst

and PWM Mode (ILOAD = 10mA)

Output Voltage Transient

Step Response (Burst Mode)

VOUT

20mV/DIV

AC COUPLED

ILOAD

250mA/DIV

I=0

50µs/DIV

VOUT

50mV/DIV

AC COUPLED

4080X G25

VMODE

5V/DIV

0V

50µs/DIV

VOUT

20mV/DIV

AC COUPLED

4080X G27

ILOAD

50mA/DIV

I=0

50µs/DIV

4080X G26

Buck VOUT Soft-Start

(ILOAD = 50mA)

VOUT

1V/DIV

0V

VEN_BUCK

5V/DIV

0V

200µs/DIV

4080X G28

Charger VPROG Soft-Start

VPROG

200mV/DIV

V=0

50µs/DIV

4080X G29

4080Xf

8

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