PQ20WZ11 datasheet(3/6 Pages) SHARP

Part #	PQ20WZ11

Description	Variable Output, General Purpose, Surface Mount Type Power-Loss Voltage Regulator

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Manufacturer	SHARP [Sharp Corporation]

Direct Link	http://sharp-world.com/

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Low Power-Loss Voltage Regulators

PQ20WZ51/PQ20WZ11

Fig. 5 Overcurrent Protection

Characteristics (Typical Value)

(PQ20WZ11)

Fig. 6 Output Voltage Adjustment

Characteristics

0

0.5

1.0

1.5

2.0

4

3

2

1

0

Output current IO (A)

Vi–O =2V

Vi–O =3V

Vi–O =0.5V

VO=3.3V

Vi–O =1V

R2 (k

Ω)

0.1

1

100

10

R1=2k

Ω

0

5

10

15

20

Fig. 7 Reference Voltage Deviation vs.

Junction Temperature (Typical Value)

Fig. 8 Output Voltage vs. Input Voltage

(PQ20WZ51)

Fig. 9 Output Voltage vs. Input Voltage

(PQ20WZ11)

Fig.10 Dropout Voltage vs. Junction

Temperature (PQ20WZ51)

0

25

50

75

100

125

–15

–20

–25

–5

5

15

–10

0

10

20

VIN=7V

VO=3.3V(R1=2k

Ω,R2=0.5kΩ)

IO=0.3A (PQ20WZ51)

=0.5A (PQ20WZ11)

25

Junction temperature Tj (˚C)

–25

PQ20WZ51

PQ20WZ11

Input voltage VIN (V)

0123

5678

4

RL=6.6

Ω

RL=

∞Ω

1

0

2

5

6

7

3

4

8

RL=11

Ω

VC=2.7V , Ci=0.33

µF , C0=47µF

Tj=25˚C

R1=2k

Ω ,R2=0.5kΩ

Input voltage VIN (V)

0123

5678

4

RL=3.3

Ω

RL=

∞Ω

1

0

2

5

6

7

3

4

8

RL=6.6

Ω

VC=2.7V , Ci=0.33

µF , C0=47µF

Tj=25˚C

R1=2k

Ω ,R2=0.5kΩ

Junction temperature Tj (˚C)

–25

0

25

50

75

100

125

0.14

0.13

0.12

0.11

0.1

0.15

0.16

0.17

0.18

0.19

0.2

VIN=3.135V, Vc=2.7V, R1=2k

Ω, R2=500Ω, IO=0.3A

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