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| PQ1CX22H2ZPQ PQ1CX22H2ZPQ Low Output Bootstrap system Chopper Regulator Features 1.Low output voltage :MIN.1.2V 2.Maximum switching current: 2.5A 3.High efficiency(efficiency88%[VIN=5V,VOUT=3.3V] ) 4.Built-in oscillation circuit 5.Built-in overheat, overcurrent protection functions 6.RoHS directive compliant (Oscillation frequency:TYP.150kHz) Outline Dimensions 50.3 (Unit:mm) 0.150.1 0.05 8 7 6 5 Model No. 1CX22H S Q 1 2 3 4 Lot.No. (OLD DIN standard) 1.270.03 1.50.1 0.995MAX Lead finish identification mark ( ) : Typical dimensions Applications 1.AV equipment 2.Digital OA equipment Product mass:(0.08g) 0.050.05 1.550.15 0.40.1 Terminal VIN VB OADJ ON/OFF Control NC GND GND VOUT Absolute Maximum Ratings Parameter *1 Input voltage *2 Boost terminal voltage *3 Voltage between VB and VIN Malfunction input voltage Input-output voltage *4 Output-GND voltage *5 ON/OFF control voltage Switching current *6 Power dissipation *7 Junction temperature Operating temperature Storage temperature Soldering temperature Symbol VIN VB VB-I VADJ VI-O VOUT VC ISW Pd Tj Topr Tstg (Ta =25C) Rating 33 33 Unit V V V V V V V A W C C C C 15 7 34 -1 -0.3 to 20 2.5 0.9 150 -40 to +85 -40 to +150 260(for 10s) Lead finish:Lead-free solder plating (Composition: Sn2Bi) Tsol *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=125C to 150C, 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.: OP06058 0.50.1 6.20.2 4.40.2 PQ1CX22H2ZPQ Electrical Characteristics Parameter Input-output voltage ratio Output saturation voltage Reference voltage Load regulation Line regulation 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 Minimum Boost Voltage (Unless otherwise specified,condition shall be VIN=5V,IO=0.5A,VO=3.3V,ON/OFF terminal :Open,Ta=25C) Symbol DI-O1 DI-O2 VSAT VREF RegL RegI fo IL DMAX ICHG VTHL VTHH VTHON ISD IQS VIN(MIN) Conditions VIN14V VIN14V ISW2.0A MIN. 15 8.5 TYP. - MAX. - Unit % % V V % % % kHz A % A V V V A mA V V Io=0.5 to 2.0A VIN=5 to 20V Io=2.0 A 0.975 0.25 1.0 0.2 1 88 150 3.2 90 -10 1.3 2.3 0.8 120 6 0.4 1.025 1.5 2.5 Switching current peak 3pin = 0.9V 3,8 pin :Open, 4 pin Duty=0 %,3pin=0V,4pin Duty=DMAX, 3pin :Open, 4pin 3pin=0V,4pin VIN=33V, 4pin=0V VIN=33V,4pin=0.9V 135 2.55 83 - 165 4.2 0.7 0.9 400 10 4.5 3 - VBOOST(MIN) Voltage between VB terminal and VOUT terminal - - Fig.1 Test Circuit VB VIN ISD A DB CB 8 3 VOUT Oadj ON/OFF 4 CIN 6 GND 7 GND A 1 2 L IO V Iqs VIN + R2 + CO Load D ICHG R1 ON/OFF control logic 4 pin LOW HIG H OPEN Output OF F ON ON L:HK-08S080-3000(made by Toho Co.) D,DB:ERC80-004(made by Fuji electronics Co.) Fig.2 Power Dissipation vs.Ambient Temperature 1 Fig.3 Overcurrent Protection Characteristics (Typical Value) 5 Ta=25C VIN=5V VO=3.3V PD : At the time of PCB mounting Power dissipation PD (W) Output voltage VO (V) 4 3 0.5 2 1 0 -30 -25 0 25 50 75 85 125 150 0 0 1 2 3 4 5 Ambient temperature Ta (C) Note)Oblique line portion:Overheat protection may operate in this area Output current IO (A) Sheet No.: OP06058 2 PQ1CX22H2ZPQ Fig.4 Efficiency vs. Input Voltage 100 VO=5V,IO=0.5A Fig.5 Output Saturation Voltage vs. Switching Current Output saturation voltage VSAT (V) 0.5 Tj=25C Tj=25C VO=5V,IO=2A Efficiency (%) 90 0.4 VO=3.3V,IO=0.5A 0.3 80 VO=3.3V,IO=2A 0.2 70 0.1 60 0 10 20 30 0 0 1 2 3 Input voltage VIN (V) Switching current ISW (A) Fig.6 Reference Voltage Fluctuation vs. Junction Temperature Reference voltage fluctuation VREF (%) 2 VIN=5V VO=3.3V IO=0.5A Fig.7 Oscillation Frequency Fluctuation vs. Junction Temperature Oscillation frequency fluctuation fO (%) 10 VIN=5V VO=3.3V IO=0.5A 1 5 0 0 -1 -5 -2 -50 -25 0 25 50 75 100 125 -10 -50 -25 0 25 50 75 100 125 Junction temperature Tj (C) Junction temperature Tj (C) Fig.8 Overcurrent Detecting Level Fluctuation vs. Junction Temperature Overcurrent detecting level fluctuation IL(%) 10 VIN=5V Fig.9 Output Saturation Voltage vs. Voltage between VB and VOUT Output saturation voltage VSAT (V) 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 0 1 2 3 4 5 6 Tj=90C Tj=25C Tj=-30C VIN=5V VO=3.3V ISW=2A 5 0 -5 -10 -50 -25 0 25 50 75 100 125 Junction temperature Tj (C) Voltage between VB and VOUT (V) Sheet No.: OP06058 3 PQ1CX22H2ZPQ Fig.10 Operating Dissipation Current vs. Input Voltage Operating dissipation current IQ' (mA) 10 Tj=25C VO=3.3V Fig.11 Line Regulation vs. Input Voltage 2 Line regulation RegI (%) 8 IO=2A 1.5 6 IO=0.5A 1 4 No Load 0.5 2 0 0 0 5 10 15 20 -0.5 0 Tj=25C VO=3.3V IO=0.5A 5 10 15 20 Input voltage VIN (V) Input voltage VIN (V) Fig.12 Load Regulation vs. Output Current 2 Fig.13 Threshold Voltage vs. Junction Temperature Threshold voltage VTHON,VTHL,VTHH (V) 3 Load regulation RegL (%) 1.5 Tj=25C VIN=5V VO=3.3V VTHH 2.5 2 VIN=5V 1 VTHL 1.5 1 0.5 0 -50 -25 0.5 0 VTHON 0 25 50 75 100 125 -0.5 0 0.5 1 1.5 2 Output current IO (A) Junction temperature Tj (C) Fig.14 Maximum Duty vs. Junction Temperature 100 Fig.15 VB Terminal Current vs. Switching Current 40 35 30 25 20 15 10 5 0 0 0.5 1 1.5 Tj=25C VIN=5V VBOOST=3V Maximum duty DMAX (%) 90 80 70 60 VIN=5V IO=0.5A 50 -50 VB terminal current (mA) -25 0 25 50 75 100 125 2 2.5 Junction temperature Tj (C) Switching current ISW (A) Sheet No.: OP06058 4 PQ1CX22H2ZPQ Fig.16 PD-Ta rating(Typical value) 1 GND pattern copper foil area 120mm2 GND pattern Power dissipation PD(W) GND pattern copper foil area 15mm2 0.5 Mounting PCB 0 -30 -25 0 25 50 75 85 100 125 Ambient temperature Ta(C) MaterialGlass-cloth epoxy resin Size 30mm x 30mm x 1mm GND pattern copper foil area120mm2,35m Block Diagram VIN 1 8 VOUT VB 2 Drive Circuit Constant Voltage PWM COMP. + ON/OFF control 4 ON/OFF Overcurrent Detection Circuit Q F/F S R Oscillation Circuit - Soft Start ERROR AMP. 3 + VADJ Vref Overheat Detection Circuit 6 fo Conversion Circuit 7 GND GND Step-down voltage output circuit diagram DB VIN VB 2 CB 1F VOUT Oadj ON/OFF L V=3.3 V 1 8 3 + VIN=5V 7 CIN 6 220F GND GND 30H R2= 3k R1= 1.3k + 4 Load CO 470F Sheet No.: OP06058 5 |
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