MAX777L 查看數據表（PDF） - Maxim Integrated

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MAX777L

Low-Voltage Input, 3V/3.3V/5V/ Adjustable Output, Step-Up DC-DC Converters

Maxim Integrated 

Low-Voltage Input, 3V/3.3V/5V/

Adjustable Output, Step-Up DC-DC Converters

_____________________________Typical Operating Characteristics (continued)

(Circuit of Figure 1, TA = +25°C, unless otherwise noted.)

LOAD-TRANSIENT RESPONSE

LINE-TRANSIENT RESPONSE

A

A

B

2ms/div

A: IOUT, 200mA/div, 0mA to 200mA

B: VOUT, 50mV/div, AC COUPLED

MAX778L, VOUT = 3.3V, VIN = 2.5V

SWITCHING WAVEFORMS,

CONTINUOUS CONDUCTION

A

B

0mA

C

5µs/div

A: SWITCH VOLTAGE (LX PIN), 2V/div

B: INDUCTOR CURRENT, 0.5A/div

C: OUTPUT VOLTAGE RIPPLE, 50mV/div, AC COUPLED

MAX777L, VIN = 1.5V, IOUT = 100mA

B

2ms/div

A: VIN, 1V/div, 1.8V to 3.3V

B: VOUT, 100mV/div, AC-COUPLED, IOUT = 240mA

MAX778L, VOUT = 3.3V

SWITCHING WAVEFORMS,

DISCONTINUOUS CONDUCTION

A

B

C

2µs/div

A: SWITCH VOLTAGE (LX PIN), 2V/div

B: INDUCTOR CURRENT, 0.5A/div

C: OUTPUT VOLTAGE RIPPLE, 50mV/div, AC COUPLED

MAX777L, VIN = 3V, IOUT = 70mA

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