RT9277B Просмотр технического описания (PDF) - Richtek Technology

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RT9277B

High Performance, Low Noise Boost Convert

Richtek Technology 

Preliminary

RT9277A/B

VL1

(10V/Div)

VOUT

(5V/Div)

VEN

(5V/Div)

ILOAD

(1A/Div)

Start Up

VL1

(10V/Div)

VIN = 3.3V, IOUT = 200mA, f = 640kHz

Time (2.5ms/Div)

VOUT

(5V/Div)

VEN

(5V/Div)

ILOAD

(1A/Div)

Power Off

VIN = 3.3V, IOUT = 200mA, f = 640kHz

Time (500μs/Div)

VL1

(10V/Div)

VOUT ac

coupled

(100mV/Div)

Switching

VL1

(10V/Div)

VOUT ac

coupled

(100mV/Div)

Switching

IL1

(500mA/Div)

VOUT ac

coupled

(500mV/Div)

VIN = 3.3V, IOUT = 200mA, f = 640kHz

Time (1μs/Div)

IL1

(500mA/Div)

Load Transient Response

VOUT ac

coupled

(500mV/Div)

VIN = 3.3V, IOUT = 200mA, f = 1.2MHz

Time (1μs/Div)

Load Transient Response

ILOAD

(200mA/Div)

VIN = 3.3V, f = 640kHz

Time (250μs/Div)

ILOAD

(100mA/Div)

VIN = 3.3V, f = 1.2MHz

Time (250μs/Div)

DS9277A/B-02 March 2007

www.richtek.com

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