RT9259A Просмотр технического описания (PDF) - Richtek Technology

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RT9259A

12V Synchronous Buck PWM DC-DC and Linear Power Controller

Richtek Technology 

Typical Operating Characteristics

Dead Time

No Load, Falling

UGATE

VIN1

(5V/Div)

PHASE

LGATE

RT9259A

Dead Time

No Load, Rising

UGATE

VIN1

PHASE

(5V/Div)

LGATE

Time (25ns/Div)

Time (25ns/Div)

(2V/Div)

VOUT1

IL

OCP

(10A/Div)

Time (2.5ms/Div)

(10V/Div)

(10V/Div)

(0.5A/Div)

(200mV/Div)

Power Off

No Load

UGATE

VREF

LGATE

IL

Time (5μs/Div)

Full Load

(20V/Div)

Shut Down

(10V/Div)

(500mV/Div)

(1V/Div)

Time (5μs/Div)

UGATE

No Load

VIN1

LGATE

VOUT1

RT_Dis

(5V/Div)

(500mV/Div)

RT_Dis

(10V/Div)

(500mV/Div)

PHASE

VOUT1

Start Up

Time (1ms/Div)

DS9259A-02 March 2007

www.richtek.com

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