LM2705MF-ADJ datasheet(5/11 Pages) NSC

Part #	LM2705MF-ADJ

Description	Micropower Step-up DC/DC Converter with 150mA Peak Current Limit

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Manufacturer	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

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5 / 11 page

Typical Performance Characteristics (Continued)

Switch R

DSON vs VIN

FB Trip Point and FB Pin Current vs Temperature

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Output Voltage vs Load Current

Off Time vs Temperature

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Step Response

Start-Up/Shutdown

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VOUT = 20V, VIN = 3.0V

1) Load, 0.5mA to 5mA to 0.5mA, DC

2) VOUT, 200mV/div, AC

3) IL, 100mA/div, DC

T = 100µs/div

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VOUT = 20V, VIN = 3.0V

1) SHDN, 1V/div, DC

2) IL, 100mA/div, DC

3) VOUT, 10V/div, DC

T = 400µs/div

RL = 3.9kΩ

www.national.com

5

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