LM3370 datasheet(9/33 Pages) TI1

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0.10

1.00

10.00

100.00

1000.00

LOAD (mA)

100

4.5V

5.5V

2.7V

3.6V

0.10

1.00

10.00

100.00

1000.00

LOAD (mA)

100

4.5V

5.5V

3.6V

2.7V

2.7

3.4

4.1

4.8

5.5

1.8

1.89

1.98

2.07

2.16

2.25

VIN (V)

Buck1 = Buck2

100

200

300

400

500

600

LOAD (mA)

1.05

1.1

1.15

1.2

1.25

1.3

1.35

1.4

1.8V

1.5

1.6

1.7

1.8

1.9

1.2V

2.7

3.4

4.1

4.8

5.5

VIN (V)

100

150

200

250

300

350

400

450

500

NFET

PFET

3.2

3.7

4.2

4.7

5.2

5.5

VIN (V)

700

800

900

1000

1100

1200

2.7

1150

1050

950

850

750

85°C

25°C

-40°C

LM3370

www.ti.com

SNVS406N – NOVEMBER 2005 – REVISED MAY 2013

Typical Performance Characteristics (continued)

LM3370, Circuit of Typical Application Circuit, VIN = 3.6V, VOUT1 = 1.5V and VOUT2 = 2.5V, L = 2.2 µH (NR3015T2R2M), CIN =

4.7 µF (0805) and COUT = 10 µF (0805) and TA = 25°C, unless otherwise noted.

RDS_ON (WSON)

Current Limit

vs.

VIN

Figure 9.

Figure 10.

Output Voltage

Switching Frequency

vs.

Output Current

VIN

VIN = 3.6V (Forced PWM)

Figure 11.

Figure 12.

Efficiency

vs.

Output Current

Forced PWM Mode, VOUT1 = 1.2V

Forced PWM Mode, VOUT1 = 1.8V

Figure 13.

Figure 14.

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