Low Power-Loss Voltage Regulators

PQ5EV3/PQ5EV5/PQ5EV7

Fig.3

Power Dissipation vs. Ambient

Temperature

Fig.1

Test Circuit

Fig.2

Test Circuit for Ripple Rejection

Fig.4

Overcurrent Protection

Characteristics (PQ5EV3)

2.35

−

7

1.5

1.2276

−

1.24

−

0.1

0.5

−

0.05

0.1

−

60

−

−

−

−

−

±1

70

−

−

−

Parameter

MIN.

TYP.

MAX.

Conditions

Ω) , Ta=25˚C)

−

−

Refer to Fig.2

−

−

−

❇5

❇6

2

−

5

1.2524

−

−

0.5

−

20

0.8

−0.4

Input voltage

Load regulation

Line regulation

Reference voltage temperature coefficient

Ripple Rejection

Dropout voltage

ON-state voltage for control

OFF-state voltage for control

OFF-state current for control

Quiescent current

ON-state current for control

Output voltage

Reference voltage

10

RR

Symbol

V

V

V

%

%

dB

%

V

V

mA

V

µA

Unit

mA

−

15

❇6 In case of opening control terminal ➄, output voltage turns on.

.1.24V]

2k

Ω

100

µF

100

µF

+

+

V

A

V

A

A

2

1

5

4

3

eo

ei

2k

Ω

100

µF

100

µF

2.7V

+

+

f

=120Hz (sine wave)

ei(rms)

=0.5V

RR

=20log (ei(rms)/eo(rms))

2

1

5

4

3

+

V

~

~

1.6

10

20

30

40

50

45

–20

0

25

50

80

Note) Oblique line portion:Overheat protection may operate in this area

0

20

40

60

80

100

024

13579

11

6

8

10

12