PQ20WZ1U

Low Power-Loss Voltage Regulators PQ20WZ51/PQ20WZ11
Fig.11 Dropout Voltage vs. Junction
Temperature (PQ20WZ11)
Fig.12 Quiescent Current vs. Junction
Temperature
Fig.13 Ripple Rejection vs. Input Ripple
Frequency
Fig.14 Ripple Rejection vs. Output Current
(PQ20WZ51)
Fig.15 Ripple Rejection vs. Output Current
(PQ20WZ11)
Junction temperature T
j
(˚C)
Dropout voltage V
i
O
(V)
25 0 25 50 75 100 125
0.11
0.1
0.12
0.13
0.14
0.15
0.16
0.17
0.18
V
IN
=3.135V, Vc=2.7V, R
1
=2k, R
2
=500, I
O
=0.5A
Junction temperature Tj (˚C)
Quiescent current Iq (mA)
0 25 50 75 100 12525
0
1
2
3
4
5
V
IN=5V
I
O=0A
VC=2.7V
R1=2k
R2=500
T
j
=25˚C
RR=20 log(e
i(rms)
/e
o(rms)
)
I
O
=0.3A
e
i(rms)
=0.5V
(sine wave)
V
IN
=5V
R
1
=2k
R
2
=0.5k
Ripple rejection RR (dB)
Input ripple frequency f
(kHz)
0.1 1 10 100
45
40
50
55
60
65
70
75
80
PQ20WZ11
PQ20WZ51
Tj=25˚C
e
i(rms)
=0.5V
f=120Hz (sine wave)
V
IN
=5V
R
1
=2k
R
2
=0.5k
Output current I
O
(A)
Ripple rejection RR (dB)
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
45
40
50
55
60
65
70
75
80
Tj=25˚C
e
i(rms)
=0.5V
f=120Hz (sine wave)
V
IN
=5V
R
1
=2k
R
2
=0.5k
Output current I
O
(A)
Ripple rejection RR (dB)
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
45
40
50
55
60
65
70
75
80
Fig.16 Circuit Operating Current vs. Input
Voltage (PQ20WZ51)
0123456
20
15
10
5
0
Circuit operating current IBIAS (mA)
Input voltage VIN (V)
RL =6.6
RL =11
RL =∞Ω
Vc=2.7V,
R
1=2k, R2=500
(Vo=3.3V)
Low Power-Loss Voltage Regulators PQ20WZ51/PQ20WZ11
Fig.17 Circuit Operating Current vs. Input
Voltage (PQ20WZ11)
01234567 8
20
25
30
15
10
5
0
Circuit operating current I
BIAS
(mA)
Input voltage V
IN
(V)
R
L
=3.3
R
L
=6.6
R
L
=∞Ω
Vc=2.7V,
R
1
=2k, R
2
=500
(Vo=3.3V)
Typical Application
2k
V
O
C
O
DC input
Cin
ON/OFF signal
High : Output ON
Low or Open : Output OFF
+
R
2
R
1
V
IN
1
4
3
Load
2
5
Model Line-ups for Tape-packaged Products
PQ20WZ11
PQ20WZ1U
0.5A output
Output current
Sleeve-packaged products
High-precision output type
Tape-packaged products
High-precision output type
PQ20WZ51
1.0A output
PQ20WZ5U
Fig.18 Power Dissipation vs. Ambient
Temperature
Cu area 740mm
2
Cu area 180mm
2
Cu area 100mm
2
Cu area 70mm
2
Cu area 36mm
2
Power dissipation P
D
(W)
Ambient temperature T
a
(˚C)
20 0
0
1
2
3
20 40 60 80 100
PWB
Material : Glass-cloth epoxy resin
Size : 50 X 50 X 1.6mm
Cu thickness : 35µm
PWB
Cu
NOTICE
The circuit application examples in this publication are provided to explain representative applications of SHARP
devices and are not intended to guarantee any circuit design or license any intellectual property rights. SHARP takes
no responsibility for any problems related to any intellectual property right of a third party resulting from the use of
SHARP's devices.
Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device. SHARP
reserves the right to make changes in the specifications, characteristics, data, materials, structure, and other contents
described herein at any time without notice in order to improve design or reliability. Manufacturing locations are
also subject to change without notice.
Observe the following points when using any devices in this publication. SHARP takes no responsibility for damage
caused by improper use of the devices which does not meet the conditions and absolute maximum ratings to be used
specified in the relevant specification sheet nor meet the following conditions:
(i) The devices in this publication are designed for use in general electronic equipment designs such as:
-- - Personal computers
-- - Office automation equipment
-- - Telecommunication equipment [terminal]
-- - Test and measurement equipment
-- - Industrial control
-- - Audio visual equipment
-- - Consumer electronics
(ii) Measures such as fail-safe function and redundant design should be taken to ensure reliability and safety when
SHARP devices are used for or in connection with equipment that requires higher reliability such as:
-- - Transportation control and safety equipment (i.e., aircraft, trains, automobiles, etc.)
-- - Traffic signals
-- - Gas leakage sensor breakers
-- - Alarm equipment
-- - Various safety devices, etc.
(iii)SHARP devices shall not be used for or in connection with equipment that requires an extremely high level of
reliability and safety such as:
-- - Space applications
-- - Telecommunication equipment [trunk lines]
-- - Nuclear power control equipment
-- - Medical and other life support equipment (e.g., scuba).
If the SHARP devices listed in this publication fall within the scope of strategic products described in the Foreign
Exchange and Foreign Trade Law of Japan, it is necessary to obtain approval to export such SHARP devices.
This publication is the proprietary product of SHARP and is copyrighted, with all rights reserved. Under the copyright
laws, no part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, for any purpose, in whole or in part, without the express written permission of SHARP. Express written
permission is also required before any use of this publication may be made by a third party.
Contact and consult with a SHARP representative if there are any questions about the contents of this publication.

PQ20WZ1U

Mfr. #:
Manufacturer:
Sharp Microelectronics
Description:
IC REG LINEAR POS ADJ 1A SC63
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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