MAX1970 データシートの表示（PDF） - Maxim Integrated

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MAX1970

Dual, 180° Out-of-Phase, 1.4MHz, 750mA Step-Down Regulator with POR and RSI/PFO

Maxim Integrated 

Dual, 180° Out-of-Phase, 1.4MHz, 750mA Step-

Down Regulator with POR and RSI/PFO

(TA = +25°C, unless otherwise noted.)

Typical Operating Characteristics (continued)

LOAD-TRANSIENT RESPONSE

LOAD-TRANSIENT RESPONSE

VOUT1

VOUT2

IOUT1

MAX1970/MAX1972

40µs/div

VIN = 5V

VOUT1 = 3.3V, 100mV/div

IOUT1 = 300mA TO 600mA

RC1 = 82kΩ, CC1 = 680pF

SWITCHING WAVEFORMS

MAX1970TOC11

IL1

200mA/div

VLX1

IL2

VLX2

MAX1970/MAX1972

200ns/div

VIN = 5V

VOUT1 = 1.8V, VOUT2 = 2.5V

IOUT1 = 500mA, IOUT2 = 500mA

5V/div

200mA/div

5V/div

IOUT2

MAX1970/MAX1972

40µs/div

VIN = 5V

VOUT2 = 1.5V, 100mV/div

IOUT2 = 300mA TO 600mA

RC2 = 39kΩ, CC2 = 680pF

MAXIMUM OUTPUT TRANSIENT DURATION

vs. POR COMPARATOR OVERDRIVE

14

12

10

8

6

4

2

0

0.01

0.1

1

10

MAXIMUM OUTPUT TRANSIENT DURATION (µs)

8 _______________________________________________________________________________________

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