For technical support and more information, see inside back cover or visit www.ti.com/powertrends

Typical Characteristics

0

0.5

1

1.5

2

2.5

3

4.5

4.75

5

5.25

5.5

PT6427, 2.1 VDC

(See Note 1)

Efficiency vs Output Current

Ripple vs Output Current

Power Dissipation vs Output Current

Note 1:

Note 1:

Note 1:

Note 1:

Note 1:

All data listed in the above graphs except for derating data has been developed from actual products tested at 25°C. This data is considered typical data for the ISR.

Note 2:

Thermal derating graphs are developed in free air convection cooling of 40-60 LFM. (See Thermal Application Notes.)

40

50

60

70

80

90

100

0

0.5

1

1.5

2

2.5

3

4.5V

5.0V

5.5V

Vin

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

2

00.5

1

1.522.5

3

5.5V

5.0V

4.5V

Vin

Iout-(Amps)

Iout-(Amps)

Iout-(Amps)

Vin-(Volts)

Efficiency vs Output Current

Ripple vs Output Current

Power Dissipation vs Output Current

Iout-(Amps)

Iout-(Amps)

Iout-(Amps)

Vin-(Volts)

PT6425, 3.3 VDC

(See Note 1)

Efficiency vs Output Current

Ripple vs Output Current

Power Dissipation vs Output Current

Iout-(Amps)

Iout-(Amps)

Iout-(Amps)

Vin-(Volts)

PT6428 1.2 VDC

(See Note 1)

0

0.5

1

1.5

2

2.5

3

4.5

4 .7 5

5

5.25

5.5

40

50

60

70

80

90

10 0

0.0

0.5

1.0

1.5

2.0

2.5

3.0

4.5V

5.0V

5.5V

Vin

85°C

0.0

0.5

1.0

1.5

2.0

2.5

3.0

0.0

0.5

1.0

1.5

2.0

2.5

3.0

5.5V

5.0V

4.5V

Vin

0

20

40

60

80

100

0

0.5

1

1.5

2

2.5

3

5.5V

5.0V

4.5V

Vin

40

50

60

70

80

90

10 0

00.511.5

2

2.5

3

4.5 V

5.0 V

5.5 V

Vin

0

0.5

1

1.5

2

2.5

3

4.5

4.75

5

5.25

5.5

85°C

0

0.5

1

1.5

2

2.5

00.511.5

22.5

3

5.5V

5.0V

4.5V

Vin

0

20

40

60

80

10 0

00.511.522.5

3

5.5V

5.0V

4.5V

Vin

85°C

0

20

40

60

80

100

00.511.522.5

3

5.5V

5.0V

4.5V

Vin

3 Amp 5V Input Adjustable

Integrated Switching Regulator

PT6420 Series