RT8056 Просмотр технического описания (PDF) - Richtek Technology

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Компоненты Описание

производитель

RT8056

Dual 1A 1.5MHz Synchronous Step-Down Converters

Richtek Technology 

RT8056

Current Limit vs. Temperature

2.10

1.75

1.40

1.05

VOUT = 1.2V

VOUT = 2.5V

0.70

0.35

0.00

-50 -25

0

25 50 75

Temperature (°C)

VIN = 5V

100 125

Reference Voltage vs. Temperature

0.620

0.615

0.610

0.605

0.600

0.595

0.590

0.585

0.580

-50 -25

VIN = 5V, IOUT = 0.3A

0

25 50 75

Temperature (°C)

100 125

Output Ripple

Output Voltage vs. Input Voltage

1.300

1.275

1.250

1.225

1.200

1.175

IOUT = 0.1A

IOUT = 1A

1.150

1.125

1.100

VIN = 2.8V to 5.5V, VOUT = 1.2V

2.8 3.1 3.4 3.7 4.0 4.3 4.6 4.9 5.2 5.5

Input Voltage (V)

Output Voltage vs. Temperature

1.22

1.21

1.20

1.19

1.18

1.17

1.16

-50 -25

VIN = 5V, VOUT = 1.2V, IOUT = 0.3A

0

25 50 75

Temperature (°C)

100 125

Output Ripple

VOUT1

(5mV/Div)

VLX1

(5V/Div)

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6

VOUT2

(5mV/Div)

VIN = 5V, VOUT = 1.2V, IOUT = 1A

Time (250ns/Div)

VLX2

(5V/Div)

VIN = 5V, VOUT = 2.5V, IOUT = 1A

Time (250ns/Div)

DS8056-02 April 2011

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