RT8057A 데이터 시트보기 (PDF) - Richtek Technology

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RT8057A

2.25MHz 1A Synchronous Step-Down Converter

Richtek Technology 

RT8057A

2.35

2.34

2.33

2.32

2.31

2.30

2.29

2.28

2.27

2.26

2.25

-50

Output Voltage vs. Temperature

VIN = 5V, VOUT = 2.3V,

IOUT = 0A

-25

0

25 50 75 100 125

Temperature (°C)

Output Ripple

Reference Voltage vs. Temperature

0.608

0.606

0.604

0.602

0.600

0.598

0.596

0.594

0.592

-50 -25

VIN = 5V, VOUT = 2.3V

0

25 50 75

Temperature (°C)

100 125

Output Ripple

VLX

(5V/Div)

VOUT

(5mV/Div)

VOUT

(100mV/Div)

VLX

(5V/Div)

VOUT

(5mV/Div)

VIN = 5V, VOUT = 2.3V, IOUT = 1A

Time (250ns/Div)

Load Transient Response

VOUT

(100mV/Div)

VIN = 3.3V, VOUT = 2.3V,

IOUT = 1A

Time (250ns/Div)

Load Transient Response

IOUT

(500mA/Div)

VIN = 5V, VOUT = 2.3V,

IOUT = 0A to 1A

Time (100μs/Div)

IOUT

(500mA/Div)

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6

VIN = 5V, VOUT = 2.3V,

IOUT = 0.4A to 1A

Time (100μs/Div)

DS8057A-00 March 2011

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