PQ1CX12H2ZPQ PQ1CX12H2ZPQ Bootstrap system Chopper Regulator ■ Outline Dimensions Features 1.Maximum switching current: 2.5A (Unit:mm) 5±0.3 8 3.Built-in oscillation circuit 7 6 0.15＋0.1 －0.05 5 Model No. 0.5±0.1 6.2±0.2 2.High efficiency(efficiency：88%[VIN=5V,VOUT=3.3V] (Oscillation frequency:TYP.150kHz) 5.Variable output voltage (Output variable range: Vref to 24V) 6.RoHS directive compliant 1 2 3 4.4±0.2 1CX12H S Q 4.Built-in overheat, overcurrent protection functions 4 Lot.No. 1.27±0.03 Applications 1.5±0.1 0.995MAX (OLD DIN standerd) Lead finish identification mark ( ) : Typical dimensions Product mass:(0.08g) 2.Digital OA equipment 0.4±0.1 Absolute Maximum Ratings *1 *2 *3 *4 *5 *6 *7 Parameter Input voltage Boost terminal voltage Voltage between VB and VIN Malfunction input voltage Input-output voltage Output-GND voltage ON/OFF control voltage Switching current Power dissipation Junction temperature Operating temperature Storage temperature Soldering temperature Symbol VIN VB VB-I Vadj VI-O VOUT VC Isw PD Tj Topr Tstg Tsol (Ta =25°C) Unit Rating V 33 V 33 V 15 V 7 V 34 V -1 V -0.3 to 20 A 2.5 W 0.9 °C 150 °C -30 to +85 -40 to +150 °C 260(for 10s) °C 0.05±0.05 1.55±0.15 1.AV equipment Terminal ①VIN ②VB ③OADJ ④ON/OFF Control ⑤NC ⑥GND ⑦GND ⑧VOUT Lead finish:Lead-free solder plating (Composition: Sn2Bi) *1 Voltage between VIN and GND *2 Voltage between VB and GND *3 Voltage between VB and VIN *4 Voltage between VOUT and GND *5 Voltage between ON/OFF and GND *6 At the time of the PCB mounting *7 There is case that over heat protection function operates at the temperature Tj=125°C to 150°C, so this item cannot be used in this temperature range. Notice The content of data sheet is subject to change without prior 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. 1 Sheet No.: OP06042 PQ1CX12H2ZPQ Electrical Characteristics (VIN=5 V, Io=0.5 A,Vo=3.3V, Terminal No. 4 open and Ta=25°C unless otherwise specified) Parameter Symbol - MAX. - 0.25 0.4 V 1.235 1.26 1.285 0.2 1.5 1 2.5 % Io=2.0 A - V % 88 % fo - - 135 150 165 kHz IL Switching current peak Terminal 3 = 1.1 V 2.55 83 A % Duty=0 %,Terminal 3=0V,Terminal 4 VTHH Duty=DMAX,Terminal 3:OPEN,Terminal 4 - 3.2 90 -10 4.2 DMAX ICHG VTHL VTHON ISD Terminal 3 = 0V,Terminal 4 VIN=33V,Terminal 4 = 0V VIN=33V,Terminal 4 = 0.9V Vsat VREF Load regulation ｜RegL｜ Io=0.5 to 2.0A Line regulation ｜RegI｜ VIN=5 to 20V Reference voltage Efficiency Oscillation frequency Overcurrent detection level Maximum Duty Charge current Input threshold voltage ON threshold voltage Standby current Output OFF-state consumption current Minimum Input Voltage - Terminal 3,8:OPEN, Terminal 4 IQS Minimum Boost Voltage Unit TYP. 15 - Isw=2.0A Output saturation voltage MIN. Conditions DI-O Voltage ratio VOUT-VIN VIN(MIN) - VBOOST(MIN) VB-VOUT Voltage - % 2.3 - 0.7 0.8 0.9 V - 120 400 10 μA mA 4.5 V 3 V 1.3 5 - μA V V Fig.1 Test Circuit DB VB VIN 2 1 ISD CB 8 A 3 Iqs + CIN O adj R2 6 GND 7 GND A D Load CO R1 ICHG L:HK-08S080-3000(made by Toho Co.) D,DB:ERC80-004(made by Fuji electronics Co.) Output OF F ON ON Fig.2 Power Dissipation vs.Ambient Temperature Fig.3 Overcurrent Protection Characteristics (Typical Value) PD : At the time of PCB mounting 5 Output voltage VO (V) Power dissipation PD (W) + ON/OFF ON/OFF control logic 1 V０ VOUT 4 VIN 4 pin LOW HIG H OPEN IO L 0.5 Tj=25°C VIN=5V VO=3.3V 4 3 2 1 0 -30 -25 0 25 50 75 85 125 0 150 Ambient temperature Ta (°C) 0 1 2 3 4 5 Output current IO (A) Note)Oblique line portion:Overheat protection may operate in this area Sheet No.: OP06042 2 PQ1CX12H2ZPQ Fig.5 Output Saturation Voltage vs. Switching Current Fig.4 Efficiency vs. Input Voltage 100 Output saturation voltage VSAT (V) 0.4 VO=5V,IO=0.5A 95 VO=5V,IO=2A 90 85 VO=3.3V,IO=0.5A 80 VO=3.3V,IO=2A 75 70 65 60 0 5 10 20 15 0.3 0.2 0.1 0 25 0 1.5 2 2.5 Switching current ISW (A) Fig.6 Stand-by Current vs. Input Voltage Fig.7 Reference Voltage Fluctuation vs. Junction Temperature Reference voltage fluctuation (%) 1 250 Tj=25°C 200 150 100 50 0 0 5 10 15 0 -0.5 -1 -50 30 25 20 0.5 Line regulation RegI (%) 1 0.5 0 -0.5 0 0.5 1 1.5 25 50 75 100 125 2 Tj=25°C VIN=12V VO=3.3V 1.5 0 Fig.9 Line Regulation vs. Input Voltage Fig.8 Load Regulation vs. Output Current 2 -25 Junction temperature Tj (°C) Input voltage V IN (V) Load regulation RegL (%) 1 0.5 Input voltage VIN (V) Tj=25°C VO=3.3V 1.5 IO=0.5A 1 0.5 0 -0.5 2.0 0 5 10 15 20 Input voltage VIN (V) Output current IO (A) Sheet No.: OP06042 3 PQ1CX12H2ZPQ Fig.11 Overcurrent Detecting Level Fluctuation vs. Junction Temperature 10 Overcurrent detecting level fluctuation (%) Oscillation frequency fluctuation (%) Fig.10 Oscillation Frequency Fluctuation vs. Junction Temperature 5 0 -5 -10 -50 -25 0 25 50 75 100 125 10 5 0 -5 -10 -50 -25 Junction temperature Tj (°C) Operating dissipation current IQ' (mA) Threshold voltage VTHON,VTHL,VTHH (V) VTHH 2.5 2 VTHL 1.5 1 VTHON 0 25 50 75 100 50 75 100 125 Fig.13 Operating Dissipation Current vs. Input Voltage 3 0 -25 25 Junction temperature Tj (°C) Fig.12 Threshold Voltage vs. Junction Temperature 0.5 0 125 10 Tj=25 °C VO=3.3 V 8 IO=2 A 6 No Load IO=0.5 A 4 2 0 0 10 5 15 20 Input voltage VIN(V) Junction temperature Tj (°C) Fig.14 PD-Ta rating(Typical value) 1 GND pattern copper foil area 120mm2 Power dissipation PD(W) GND pattern GND pattern copper foil area 15mm2 0.5 Mounting PCB 0 -30 -25 0 25 50 75 85 100 Material ：Glass-cloth epoxy resin Size ：30mm × 30mm × 1mm GND pattern copper foil area：120mm2,35μm 125 Ambiet temperature Ta(˚C) Sheet No.: OP06042 4 PQ1CX12H2ZPQ Block Diagram V IN 1 VB 2 8 Drive Circuit Constant Voltage ON/OFF control 4 PWM COM P. + R F/F S ERROR A M P. 3 - Overheat Detection Circuit ON/OFF Soft Start Oscillation Circuit Q Overcurrent Detection Circuit V OUT + V ADJ V ref fo Conversion Circuit 6 7 GND GND Step-down voltage output circuit diagram DB VB VIN 1 2 8 3 + 4 VIN=5 V CIN 220μF CB 1μF L VOUT Oadj ON/OFF 7 6 GND GND V０=3.3 V 30μH R 2= 3.9 kΩ + R 1= 2.4 kΩ CO 470μF Load Sheet No.: OP06042 5