1.6

V

-Supplyvoltage-V

IN

L =3.3µH

1.4

1.2

1.0

0.8

0.4

0.6

0.2

0.0

3.5

6.0

V =9V

S

V =12V

S

V =18.5V

S

2.5

3.0

4.0

4.5

5.5

5.0

V =15V

S

200

400

600

800

1000

1200

1400

1600

0

0.1

0.2

0.3

0.4

0.5

0.6

I

- Load current - A

O

MODE = V

Forced PWM

L = 3.3 µH

IN

V

V = 12 V

S

100

I -OutputCurrent-mA

O

FREQ=GND

V

=3.3V

L =3.3µH

IN

90

70

80

60

50

20

40

10

30

0

0.1

1

100

1000

V =9V

S

V =12V

S

V =15V

S

10

100

I -OutputCurrent-mA

O

FREQ=VIN

V

=3.3V

L =3.3µH

IN

90

70

80

60

50

20

40

10

30

0

1

10

100

1000

V =9V

S

V =12V

S

V =15V

S

TPS61086

SLVSA05B – AUGUST 2009 – REVISED AUGUST 2015

www.ti.com

6.6 Typical Characteristics

The typical characteristics are measured with the inductor CDRH6D12 3.3 µH from Sumida and the rectifier diode SL22.

Table 1. Table of Graphs

FIGURE

η

Efficiency vs Load current- PFM

Figure 1

η

Efficiencyvs Load current - Forced PWM

Figure 2

Maximum output current

Figure 3

Switching frequency - Forced PWM

Figure 4

Switching frequency - Forced PWM

Figure 5

Supply current

Figure 6

Figure 1. PFM Mode Efficiency vs Output Current

Figure 2. Force PWM Mode Efficiency vs Output Current

Figure 4. Frequency vs Load Current

Figure 3. Output Current vs Supply Voltage

6

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