LM3676 datasheet(7/25 Pages) TI

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100

200

300

400

500

600

OUTPUT CURRENT (mA)

1.48

1.5

1.52

1.54

VIN = 3.6V

VOUT = 1.5V

PFM Mode

PWM Mode

VOUT

40 Ps/DIV

3.6V

VIN

3.0V

20 mV/DIV

AC Coupled

VOUT = 1.5V

IOUT = 400 mA

2.5

3.5

4.5

5.5

SUPPLY VOLTAGE(V)

1.4800

1.4900

1.5000

1.5100

1.5200

1.5300

= 10 mA

I OUT

= 1.5 V

OUT

= 300 mA

I OUT

= 500 mA

I OUT

= 600 mA

I OUT

-10

TEMPERATURE (

oC)

1.4800

1.4850

1.4900

1.4950

1.5000

1.5050

1.5100

1.5150

1.5200

1.5250

1.5300

-30

PFM Mode

PWM Mode

IOUT = 300 mA

VIN = 3.6V

VOUT = 1.5V

IOUT = 600 mA

IOUT = 10 mA

LM3676

www.ti.com

SNVS426C – NOVEMBER 2006 – REVISED MAY 2013

Typical Performance Characteristics (continued)

Circuit of LM3676, VIN= 3.6V, VOUT= 1.5V, TA= 25°C, unless otherwise noted.

Output Voltage vs. Supply Voltage

Output Voltage vs. Temperature

(VOUT = 1.5V)

Figure 11.

Figure 12.

Output Voltage vs. Output Current

Line Transient Response

(VOUT = 1.5V)

VOUT = 1.5V (PWM Mode)

Figure 13.

Figure 14.

Efficiency vs. Output Current

(VOUT = 1.5V, L = 2.2 µH)

(VOUT = 3.3V, L = 2.2 µH)

Figure 15.

Figure 16.

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