RT8078AZSP 查看數據表（PDF） - Richtek Technology

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RT8078AZSP

4A, 1MHz, Synchronous Step-Down Converter

Richtek Technology 

Load Transient Response

VOUT

(50mV/Div)

IOUT

(5A/Div)

VIN

(5V/Div)

VOUT

(1V/Div)

VPGOOD

(10V/Div)

IOUT

(5A/Div)

VEN

(5V/Div)

VOUT

(1V/Div)

VPGOOD

(5V/Div)

IOUT

(5A/Div)

VLX

(5V/Div)

VIN = 5V, VOUT = 1.2V, IOUT = 1A to 4A

Time (100μs/Div)

VOUT

(5mV/Div)

Power On from VIN

VIN = 5V, VOUT = 1.2V, IOUT = 4A

Time (2.5ms/Div)

Power On from EN

VIN = 5V, VOUT = 1.2V, IOUT = 4A

Time (500μs/Div)

VIN

(5V/Div)

VOUT

(1V/Div)

VPGOOD

(10V/Div)

IOUT

(5A/Div)

VEN

(5V/Div)

VOUT

(1V/Div)

VPGOOD

(5V/Div)

IOUT

(5A/Div)

DS8078A-01 June 2011

RT8078A

Switching

VIN = 5V, VOUT = 1.2V, IOUT = 4A

Time (500ns/Div)

Power Off from VIN

VIN = 5V, VOUT = 1.2V, IOUT = 4A

Time (5ms/Div)

Power Off from EN

VIN = 5V, VOUT = 1.2V, IOUT = 4A

Time (250μs/Div)

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