RT9270PF 데이터 시트보기 (PDF) - Richtek Technology

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RT9270PF

High Performance, Low Noise Boost Converter

Richtek Technology 

Preliminary

RT9270

OCP Waveform

Output

Current

(500mA/Div)

VIN = 3.3V, VOUT = 12V, IOUT= 400mA

Inductor

Current

(1A/Div)

Output

Voltage

(10V/Div)

LX Switching

Waveform

(10V/Div)

fOSC = 670kHz, ILIMIT = 1.9A

Time (2ms/Div)

OTP Waveform

VIN = 3.3V, VOUT = 12V, IOUT= 400mA

LX Switching

Waveform

(5V/Div)

Inductor

Current

(1A/Div)

fOSC = 1.3MHz, ILIMIT = 1.9A

Time (4ms/Div)

Maximum Output Current vs. Temperature

800

VIN = 3.3V,L = 4.7uH,fOSC = 1.3MHz

700

600

500

VOUT= 7.2V

400

300

VOUT= 12V

200

100

0

-60 -40 -20 0 20 40 60 80

Temperature (°C)

DS9270-09 March 2007

www.richtek.com

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