1Sheet No.: OP06066
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Features Outline Dimensions (Unit:mm)
Applications
Terminal
CMOS Step-up
Chopper Regulator
1.Power supply for tuner of digital AV equipment
2.LCD monitors
PQ6CU12X2APQ
PQ6CU12X2APQ
1.High switching voltage :MAX.40V
2.Switching current: 250mA
3.Oscillation frequency variable: 300 to 800 kHz
4.Small package (2.9×2.8×1.3mm)
5.Possible to use ceramic capacitor
6.Built-in overcurrent protection functions
7.RoHS directive compliant
VIN
Absolute Maximum Ratings
Parameter
Symbol
Unit
V
V
V
V
V
(Ta=25°C)
°C
°C
°C
°C
6.5
Rating
Input voltage VSW 40
ON/OFF control voltage VC
OSC voltage VIN
Feed back voltage FB
Switching current ISW 250 mA
Power dissipation Pd 350 mW
Junction temperature Tj150
Operating temperature Topr -40 to +85
260(10s)
Storage temperature Tstg -40 to +150
Soldering temperature Tsol
Operating conditions
Parameter
Symbol
Unit
°C
Rating
Operating Junction temperature
-40 to +125
Tj
7
6 4
1 2 3
C0
5
Lead finish:Lead-free solder plating
(Composition: Sn2Bi)
Product mass:(0.02g)
( ) : Typical dimensions
①Switch terminal (VSW)
②GND terminal
③Feed back terminal (FB)
④ON/OFF Control terminal (ON/OFF)
⑤Frequency adjustment terminal (OSC)
⑥VIN terminal(VIN)
Switching voltage VIN
VCVIN
(1.9)
(0.95) (0.95)
6–0.4
±0.1
3.3
MAX.
(2.9
TYP.
excluding
remaining gate) 1.8
±0.2
1.3MAX
1.1±0.2
(0.3)
0～0.1
0.15±0.1
0.08
MIN.
2.8
±0.3
0.08
MIN.
15°
MAX.
2
Sheet No.: OP06066
Electrical Characteristics
PQ6CU12X2APQ
mA
Parameter
Reference voltage
Oscillation frequency range
Overcurrent detection level
Maximum duty
On-resistance
Symbol Conditions MIN. TYP. MAX. Unit
-
0.8 1.8
-
0.1 1
-0.97 1 1.03
0.7 3
300 800
-
-
-
-
-
90
260
-
-
-
-
1.7 2.5
0.01 1
-
-
-
0.4
1
3
(Unless otherwise specified,condition shall be VIN=VC=5V,VO=30V,IO=10mA,fO=500kHz,Ta=25°C)
Input-output voltage range
-
ON-state voltage for control
fo(range)
V
%
mA
V
V
kHz
VREF
VC=0V
DMAX
ISD
Switching current peak
μA
RON ISW=150mA
VC(ON)
VIN
IｑSwitching,IO=0mA
IL
Ω
ILEAK VSW=40V μA
VC(OFF)
μA
-5.5
Quiescent current
Stand-by current
Error amplifier
Oscillator
%
Power switch
--
Leakage current
ON/OFF control terminal
OFF-state voltage for control
---
100
V
Fig.2 Power Dissipation vs.Ambient
Temperature
Fig.1 Standard measuring circuit
Output
ON
ON/OFF control logic
4pin
LOW
HIGH
OPEN
OFF
OFF
-40 -25 0 7525 125
0
100
200
300
400
50 85 100 150
Pd : Mounting PCB
Power dissipation Pd (mW)
Ambient temperature Ta (°C)
Fig.3 Reference Voltage Fluctuation vs.
Junction Temperature
Junction temperature Tj (
°C
)
Reference voltage fluctuation ΔVREF (%)
|RegL|
|RegI|
Load regulation
Line regulation
IO=1 to 15mA
VIN=4 to 5.5V,IO=5mA
13
-%
Oscillation frequency 375 625500
fo
kHz
-
ROSC=130kΩ
-
IC(ON)
ON-state current for control
L:CDRH4D18シリーズ(SUMIDA CORPORATION.)
D:MA2Z720(MATSUSHITA ELECTRIC INDUSTRIAL CO.,LTD)
2.2μF
1μF
VIN
CIN
CO
IC
L
56μHSBD
A
VC
A
Iq
Isd
A
IL
ILEAK
R2
290kΩ
R1
10kΩ
V
IO
Vref
VO
VIN
ON/OFF
GND OSC
FB
VSW
ROSC
-4
-25 0 25 50 75 100 125-50
-3
0
2
4
-2
-1
1
3
VIN=VC=5V
VO=30V
IO=10mA
CIN=2.2μF
CO=1μF
L=56μH
fO=500kHz
3
Sheet No.: OP06066
PQ6CU12X2APQ
Fig.4 Oscillation Frequency Fluctuation vs.
Junction Temperature
Fig.5 Oscillation Frequency vs.Resistance
(ROSC)
Fig.7 ON-state Voltage for Control vs.
Junction Temperature
Junction temperature Tj (
°C
)
Junction temperature Tj (
°C
)
Fig.6 On-resistance vs. Junction
Temperature
Fig.8 ON-state Current for Control vs.
Junction Temperature
-20
-25 0 25 50 75 100 125-50
-5
0
5
10
-15
-10
15
20
VIN=VC=5V
VO=30V
CIN=2.2μF
CO=1μF
L=56μH
IO=10mA
ROSC=130kΩ
Junction temperature Tj (
°C
)
Oscillation frequency fluctuation ΔfO (%)
0
300
400
500
600
100
200
800
100 150 200 250 30050
ROSC(kΩ)
900
1000
700
fO (kHz)
VIN=VC=5V
VO=30V
CIN=2.2μF
CO=1μF
L=56μH
IO=10mA
Tj=25
˚C
-25 0 25 50 75 100 125-50
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
VIN=VC=5V
ISW=200mA
CIN=2.2μF
CO=1μF
fO=500kHz
Junction temperature Tj (
°C
)
On-resistance
RON (Ω)
-25 0 25 50 75 100 125-50
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
VIN=VC=5V
VO=30V
IO=10mA
CIN=2.2μF
CO=1μF
L=56μH
fO=500kHz
ON-state voltage for control VC(ON) (V)
-25 0 25 50 75 100 125-50
0
10
20
30
40
50
60
VIN=VC=5V
VO=30V
IO=10mA
CIN=2.2μF
CO=1μF
L=56μH
fO=500kHz
ON-state current for control IC(ON) (μA)
4
Sheet No.: OP06066
PQ6CU12X2APQ
Block Diagram
Example of application
Σ
ON/OFF
FB
GND
PWM CMP. ERROR AMP
VIN CIN VIN VSW
LD
R1
CO
OSC ROSC
Vref
R2
ON/OFF
Circuit
Drive
Circuit
Over
current
protection
Frequency
adjustment Oscillator
2.2μF1μF
GND
VIN
5V CIN
VIN
R1
10kΩ
CO
ON/OFF
ON/OFF
L
56μH
VSW
SBD
FB
OSC
ROSC
130kΩ
R2
290kΩ
30V
VO
LOAD
IO=10mA
