RT9259 Просмотр технического описания (PDF) - Richtek Technology

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RT9259

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

Richtek Technology 

ILOAD

(2.5A/Div)

RT9259

Start Up

No Load

ILOAD = 20A

Start Up

RT_Dis

(500mV/Div)

VOUT1

(500mV/Div)

Time (1ms/Div)

VOUT1

(500mV/Div)

Time (1ms/Div)

Transient Response

Transient Response

UGATE

(20V/Div)

(100mV/Div)

VOUT1

IL

(10A/Div)

(100mV/Div)

VIN1 = 12V, VOUT1 = 2V

ILOAD = 1A to 20A

Time (2.5μs/Div)

(20V/Div)

(10A/Div) VIN1 = 12V, VOUT1 = 2V

ILOAD = 20A to 1A

Time (10μs/Div)

VOUT

UGATE

IL

LDO

(2mV/Div)

VOUT2

Transient Response

VIN2 = 12V, VOUT2 = 2.5V

ILOAD = 1A to 100mA

Under Voltage Protection

LDO

VIN2 = 0V

(10V/Div)

(20V/Div)

LGATE

UGATE

IL

(0.5A/Div)

Time (100μs/Div)

(500mV/Div)

(1V/Div)

COMP

VOUT2

Time (10ms/Div)

DS9259-03T00 August 2007

www.richtek.com

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