2.000

2.100

2.200

2.300

2.400

2.500

2.600

2.700

2.800

2.900

3.000

-

40

-

30

-

20

-

10

0 10 20 30 40 50 60 70 80

Temperature (ºC)

2A

1A

0.000

0.050

0.100

0.150

0.200

0.250

0.300

-40 -30 -20 -10 0 10 20 30 40 50 60 70 80

Temperature (ºC)

-50

0

50

100

Temperatur

e

0.800

0.90

0

1.00

0

1.100

1.20

0

1.30

0

1.2

1.7

2.2

2.7

3.2

3.7

4.2

Vin (V)

0

0.5

1

1.5

2

300k

225k

150

75k

V

DD

= 3.3V

TEMPERATURE (ºC)

-40

-25

-10

5

20

35

50

65

80

1.2365

1.236

1.2355

1.235

1.2345

1.234

1.2335

1.233

1.2325

300mA

600mA

10mA

60.0

65.0

70.0

75.0

80.0

85.0

90.0

95.0

1.8

2.1

2.4 2.7

3.0

3.3

3.6

3.9 4.2

4.5

Vin

LM2623

www.ti.com

SNVS188G – MAY 2004 – REVISED DECEMBER 2005

TYPICAL PERFORMANCE CHARACTERISTICS

Efficiency

vs

vs

Temperature

Figure 3.

Figure 4.

Frequency

vs

Maximum Start Up Voltage vs

Temperature

Figure 5.

Figure 6.

Typical Current Limit vs

Temperature

Temperature

Figure 7.

Figure 8.

Copyright © 2004–2005, Texas Instruments Incorporated

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