RT8026 Ver la hoja de datos (PDF) - Richtek Technology

Número de pieza

componentes Descripción

Fabricante

RT8026

1.5MHz, 1A, High Efficiency PWM Step-Down DC/DC Converter

Richtek Technology 

RT8026

UVLO Threshold vs. Temperature

2.0

1.9

Rising

1.8

1.7

1.6

Falling

1.5

1.4

1.3

1.2

1.1

1.0

-50 -25

VOUT = 3.5V

0

25 50 75 100 125

Temperature (°C)

1.20

1.10

1.00

0.90

0.80

0.70

0.60

0.50

4

EN Threshold vs. Input Voltage

Rising

Falling

VOUT = 3.5V

4.3

4.6

4.9

5.2

5.5

Input Voltage (V)

Output Ripple

1.2

1.1

1.0

0.9

0.8

0.7

0.6

0.5

0.4

-50

EN Threshold vs. Temperature

Rising

Falling

VOUT = 3.5V

-25

0

25

50 75 100 125

Temperature (°C)

Output Voltage vs. Output Current

3.560

3.555

3.550

VIN = 5V

VIN = 5.5V

3.545

3.540

3.535

0

0.2

0.4

0.6

0.8

1

Output Current (A)

Power On from EN

VOUT

(10mV/Div)

VLX

(5V/Div)

VIN = 5V, VOUT = 3.5V, IOUT = 500mA

Time (500ns/Div)

VEN

(5V/Div)

VOUT

(2V/Div)

IIN

(1A/Div)

VIN = 5V, VOUT = 3.5V, IOUT = 10mA

Time (100μs/Div)

www.richtek.com

6

DS8026-02 March 2011

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