Low Power-Loss Voltage Regulators
PQ20WZ51/PQ20WZ11
Fig.17 Circuit Operating Current vs. Input
Voltage (PQ20WZ11)
30
Vc=2.7V,
R1=2kΩ, R2=500Ω
25
(Vo=3.3V)
20
RL =3.3Ω
15
RL =6.6Ω
10
5
RL =∞Ω
0
0 1 2 34567 8
Input voltage VIN (V)
Fig.18 Power Dissipation vs. Ambient
Temperature
3
Cu area 740mm2
2
Cu area 180mm2
Cu area 100mm2
Cu area 70mm2
1
Cu area 36mm2
PWB
PWB
Cu
0
–20 0 20 40 60 80 100
Ambient temperature Ta (˚C)
s Typical Application
DC input
1
3
Cin
2
4
5
VIN
VO
R2
CO +
R1
2kΩ
Load
ON/OFF signal
High : Output ON
Low or Open : Output OFF
Material : Glass-cloth epoxy resin
Size
: 50 X 50 X 1.6mm
Cu thickness : 35µm
s Model Line-ups for Tape-packaged Products
Output current
0.5A output
1.0A output
Sleeve-packaged products Tape-packaged products
High-precision output type High-precision output type
PQ20WZ51
PQ20WZ5U
PQ20WZ11
PQ20WZ1U