Low Power-Loss Voltage Regulators

PQ05RF2/PQ05RF21/PQ05RF2V Series

Fig.1 Test Circuit

Fig.5 Output Voltage Minute Adjustment

Characteristics (PQ05RF2V)

Fig.6 Output Voltage Minute Adjustment

Characteristics (PQ09RF2V)

Fig.2 Test Circuit of Ripple Rejection

10

2

10

3

10

4

4.5

5.0

5.5

6.0

Ω

Ω

3.9k

Ω

Ω)

10

3

10

4

10

5

8.1

9.0

9.9

Ω

Ω

Ω

Ω)

q

3

q

2

q

1

q

4

A

V

A

A

0.33

µF

47

µF

+

q

3

q

2

q

1

q

4

A

V

A

0.33

µF

3.3

µF

PQ05RF2/PQ05RF21series

PQ05RF2Vseries

47

µF

+

+

3.3

µF

PQ05RF2/PQ05RF21series

PQ05RF2Vseries

q

3

q

2

q

1

q

4

V

0.33

µF

47

µF

+

+

~

~

q

3

q

2

q

1

q

4

V

0.33

µF

47

µF

+

+

~

~

+

f=120Hz (sine wave)

f=120Hz (sine wave)

Fig.3 Power Dissipation vs. Ambient

Temperature

Fig.4 Overcurrent Protection

Characteristics (Typical value)

0

-20

0

50

100

150

5

10

15

20

0

1.0

2.0

3.0

4.0

100

80

40

60

20

0

Note) Oblique line portion:Overheat protection may operate in

this area.