PQ25VB8M2FZ/PQ25VB012FZ
Variable Output Type, built-in
PQ25VB8M2FZ/
Overheat Shut-Down Function Low
Power-Loss Voltage Regulator
PQ25VB012FZ
Outline Dimensions
Features
(Unit : mm)
1. Compact resin full mold package
MAX
10.2 4.5
2.8
(Equivalent to TO-220)
2. Low power-loss
(Dropout voltage: MAX. 0.5V at I =0.5A)
O
3. Overheat shut-down function (keep shut-down output until 0.1
3.2
25VB8M2
power-on again)
Epoxy resin
4. Variable output voltage (setting range:1.5 to 25V)
(0.5)
5. With built-in overcurrent protection
(1.5)
6. Reference voltage precision:2.0%
0.8
7. With built-in ON/OFF control function
0.5
(5.0) 3.2
4(1.7)
Applications
0.7
8.2
1. Series power supply for TVs and VCRs
2. Power supplies for equipment
3. CRT displays
1 2 3 4 5
Absolute Maximum Ratings (Ta=25C)
Parameter Symbol Rating Unit
*1
1 3 1 DC input (V )
Input voltage VIN 27 V IN
2 ON/OFF control (V )
C
*1
V
ON/OFF control voltage VC 27
3 DC output (V )
O
Specific IC
*1
Output adjustment terminal voltage VADJ 7 V 4 Output voltage adjustment (V )
ADJ
2 4
5 GND
0.8
PQ25VB8M2FZ
5
Output current IO A
PQ25VB012FZ 1
PD1 1.25 W
*2
Power dissipation
PD2 12.5 W
*3
Junction temperature
Tj 150 C
Operating temperature Topr 20 to +80 C
Storage temperature Tstg 40 to +150 C
Soldering temperature Tsol 260 (10s) C
*1 All are open except GND and applicable terminals
*2 P :No heat sink, P :With infinite heat sink
D1 D2
*3 Overheat shut-down function operates at Tj110C
Notice In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP
devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
Internet Internet address for Electronic Components Group PQ25VB8M2FZ/PQ25VB012FZ
(Unless otherwise specified, condition shall be VIN=12V, VO=10V (R1=390 ), IO=0.5A, VO=2.7V, Ta=25C)
Electrical Characteristics
Parameter Symbol Conditions MIN. TYP. MAX. Unit
Minimum operating supply voltag
VIN(MIN.) 4.5 27 V
Output voltage range VO 1.5
25 V
PQ25VB8M2FZ IO=5mA to 0.8A
Load regulation RegL
0.3 1.0 %
PQ25VB012FZ IO=5mA to 1A
Line regulation RegI
VIN=11 to 20V, IO=5mA 0.5 1.0 %
Ripple rejection
RR Refer to Fig.2 45 55 dB
Reference voltage Vref
1.225 1.25 1.275 V
Reference voltage temperature coefficient TCVO
Tj=0 to 110C, IO=5mA 1.0 %
*4
VI-O
Dropout voltage IO=0.5A 0.5
V
*5 *5
Output on control voltage VC (ON) 2.0 V
Output on control current IC (ON) VC=2.7V 20 A
Output off control voltage VC (OFF) 0.8 V
Output off control current IC (OFF) VC=0.4V 0.4 mA
Quiescent current Iq IO=0A 7 mA
Overheating shutdown temperature TSD 110 130 150 C
*4 Input voltage shall be the value when output voltage is 95% in comparison with the initial value
*5 In case of opening ON/OFF control terminal , output voltage turns on2
Fig.1 Standard Test Circuit
V
IN
V
O
1 3
R
2
A I
O
V
C
2
V
ref
+
4
5 V
I
A C
47 F
0.33 F
R V
1
I R
A q L
390
Fig.2 Test Circuit for Ripple Rejection
+
1 3
~
ei I
O
R
2
eo
V
C
+ 2 4 +
V
ref
V
0.33 F ~
5
47 F
V R
IN L
R
1
390k
2.7V
f=120Hz(sine wave)
ei(rms)=0.5V
V =10V(R =390 )
O 1
V =12V
IN
I =0.5A
O
RR=20log(ei(rms)/eo(rms))