MAX887HC Просмотр технического описания (PDF) - Maxim Integrated

Номер в каталоге

Компоненты Описание

Список матч

MAX887HC

100% Duty Cycle, Low-Noise, Step-Down, PWM DC-DC Converter

Maxim Integrated 

100% Duty Cycle, Low-Noise,

Step-Down, PWM DC-DC Converter

____________________________Typical Operating Characteristics (continued)

(Circuit of Figure 2, TA = +25°C, unless otherwise noted.)

HEAVY-LOAD, PWM-MODE

SWITCHING WAVEFORMS

LIGHT-LOAD, PWM-MODE

SWITCHING WAVEFORMS

A

B

C

0mA

1µs/div

VIN = 5V, VOUT = 3.3V, LOAD = 500mA

A: LX, 5V/div

B: VOUT, 20mV/div, AC COUPLED

C: INDUCTOR CURRENT, 500mA/div

A

B

C

1µs/div

VIN = 5V, VOUT = 3.3V, LOAD = 0mA

A: LX, 5V/div

B: VOUT, 20mV/div, AC COUPLED

C: INDUCTOR CURRENT, 500mA/div

LIGHT-LOAD, PFM-MODE

SWITCHING WAVEFORMS

A

B

C

1µs/div

VIN = 5V, VOUT = 3.3V, LOAD = 0mA

A: LX, 5V/div

B: VOUT, 20mV/div, AC COUPLED

C: INDUCTOR CURRENT, 200mA/div

MEDIUM-LOAD, PFM-MODE

SWITCHING WAVEFORMS

A

B

C

10µs/div

VIN = 5V, VOUT = 3.3V, LOAD = 70mA

A: LX, 5V/div

B: VOUT, 20mV/div, AC COUPLED

C: INDUCTOR CURRENT, 200mA/div

_______________________________________________________________________________________ 5

Share Link: