PQ7VZ5 Datasheet, PDF (2/5 Pages) Sharp Electrionic Components – Variable Output, Compact Surface Mount Type Low Power-Loss Voltage Regulators

Low Power-Loss Voltage Regulators
PQ7VZ5
s Electrical Characteristics (Unless otherwise specified, conditions shall be VIN=5V, VO=3V(R1=1kΩ), Io=0.3A, VC=2.7V, Ta=25˚C)
Parameter
Symbol
Condition
NIN. TYP. MAX. Unit
Input voltage
Output voltage variable range
Load regulation
Line regulation
Ripple rejection
Dropout voltage
Reference voltage
Temperature coefficient of reference voltage
ON-state voltage for control
ON-state current for control
OFF-state voltage for control
OFF-state current for control
Quiescent current
Output OFF-state consumption current
VIN
VO
RegL
RegI
RR
Vi-o
Vref
TCVref
VC (ON)
IC (ON)
VC (OFF)
IC (OFF)
Iq
Iqs
-
-
IO=5mA to 0.5A
VIN=4 to 10V, IO=5mA
Refer to Fig. 2
VIN=3.4, IO=0.3A
-
IO=5mA, Tj=0 to 125˚C
*4
-
IC=0A
VC=0.4V, IC=0A
IC=0A
VC=0.4V
3.4
-
10.0
V
1.5
-
7.0
V
-
0.2
2.0
%
-
0.2
2.5
%
45
60
-
dB
-
-
0.5
V
1.225 1.25 1.275
V
-
±1.0
-
%
2.0
-
-
V
-
-
200
µA
-
-
0.8
V
-
-
2
µA
-
4
7
mA
-
-
5
µA
*4 In case of opening control terminal 2 , output voltage turns off.
Fig.1 Test Circuit
VIN 0.33µF _1q
VC 2q
A
3q
R2
5q ^4q
A Iq 1kΩ ^{R1 V}
47µF VO
A IO
+
V
RL
Fig.2 Test Circuit for Ripple Rejection
0.33µF
1q
~ ei
2q
VIN
VC
3q
5q ^4q
47µF +
R2
47µF ₊
R1
1kΩ
IO
V~ eo
RL
VO=Vref X 1+- ^RR21 = 1.25 X 1+- ^RR21
[R1=390Ω,Vref = 1.25V]
f=120Hz (sine wave)
ei=0.5Vrms
IO=0.3A
RR=20 log (ei/eo)
VIN=5V
VO=3V (R1=1kΩ)
Fig.3 Power Dissipation vs. Ambient
Temperature
10
PD:With infinite heat sink
PD
5
0
-20 0
50 80 100
150
Ambient temperature Ta (˚C)
Note) Oblique line portion:Overheat protection may
operate in this area.
Fig.4 Overcurrent Protection
Characteristics(Typical Value)
4
Ta =25˚C
VO=3V(R1=1kΩ,R2=1.4kΩ)
3
Vi-O =0.5V
2
Vi-O =1V
Vi-O =5V
Vi-O =2V
1
0
0
0.5
1.0
1.5
2.0
Output current IO (A)