LM2703MFX-ADJ datasheet(7/19 Pages) TI1

Numer części	LM2703MFX-ADJ

Szczegółowy opis	LM2703 Micropower Step-Up DC/DC Converter with 350mA Peak Current Limit

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60

80

100 120

JUNCTION TEMPERATURE (°C)

120

121

122

123

124

125

55

50

45

40

35

30

25

20

15

V

nA

0.05 2

6 10 14 18 22 26 30 38 55 75

LOAD CURRENT (mA)

11.85

11.90

11.95

12.00

12.05

12.10

12.15

12.20

V

IN

= 5V

V

IN

= 4.2V

V

IN

= 3.3V

V

IN

= 2.5V

C

OUT

= 1uF

V

OUT

= 12V

LM2703

www.ti.com

SNVS172F – FEBRUARY 2002 – REVISED MAY 2013

Typical Performance Characteristics (continued)

FB Trip Point and FB Pin Current

Output Voltage

vs

Temperature

Load Current

Figure 11.

Figure 12.

Step Response

Start-Up/Shutdown

VOUT = 20V, VIN = 2.5V

1) SHDN, 1V/div, DC

1) Load, 1mA to 10mA to 1mA, DC

2) IL, 200mA/div, DC

2) VOUT, 200mV/div, AC

3) VOUT, 20V/div, DC

3) IL, 200mA/div, DC

T = 400µs/div

T = 50µs/div

RL = 1.8kΩ

Figure 13.

Figure 14.

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