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| Low Power-Loss Voltage Regulators PQ3RF23/PQ3RF33 PQ3RF23/PQ3RF33 3.3V Output, High Output Current (2A, 3.5A) Type Low Power-loss Voltage Regulators s Features 3.3V output High output current 2A type : PQ3RF23 3.5A type : PQ3RF33 Compact resin full-mold package (TO-220 package) Low power-loss (Dropout voltage : MAX. 0.5V) High-precision output voltage type Output voltage precision : 2.5% Built-in ON/OFF control function Built-in overcurrent protection, overheat protection function s Outline Dimensions 10.2MAX 3.60.2 4.50.2 (Unit : mm) 2.80.2 7.40.2 29.1MAX PQ3RF23 4-1.4 13.5MIN 4-0.6 +0.3 -0 +0.2 -0.1 3-(2.54) (0.5) s Applications Power supplies for various electronic equipment such as personal computers 1234 qqqq Internal connection diagram 1 Control circuit 2 4 3 1 DC input (VIN) 2 DC output (VO) 3 GND 4 ON/OFF control terminal (VC) s Absolute Maximum Ratings Parameter *1 *1 (Ta=25C) Symbol VIN VC IO PD1 PD2 Tj Topr Tstg Tsol Rating 10 10 2 PQ3RF23 3.5 PQ3RF33 1.5 PQ3RF23 1.8 PQ3RF33 18 150 -20 to +80 -40 to +150 260(For 10s.) Unit V V A W W C C C C Input voltage ON/OFF control terminal voltage Output current Power dissipation (No heat sink) *2 Power dissipation (With infinite heat sink) Junction temperature Operating temperature Storage temperature Soldering temperature *1 *2 All are open except GND and applicable terminals. Overheat protection may operate at 125= " 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 version of the device specification sheets before using any SHARP's device. " 4.8MAX 15.60.5 (1.5) 3.20.1 Low Power-Loss Voltage Regulators s Electrical Characteristics Parameter Output voltage Load regulation PQ3RF23 PQ3RF33 PQ3RF23/PQ3RF33 (Unless otherwise specified,conditions shall be IO=1.0A[PQ3RF23]/IO=1.5A[PQ3RF33],VIN=5V,Ta=25C) Symbol VO RegL RegI TCVO RR Vi-O VC(ON) IC(ON) VC(OFF) IC(OFF) Iq Conditions IO=5mA to 2.0A IO=5mA to 3.5A VIN=4 to 10V Tj=0 to 125C *3, IO=2.0A *3, IO=3.0A VC=2.7V VC=0.4V IO=0A MIN. 3.218 45 2 TYP. 3.3 0.2 0.2 0.5 0.02 55 MAX. 3.382 2 2 2.5 0.5 0.5 20 0.8 -0.4 10 Unit V % % %/C dB V V A V mA mA *4 Line regulation Temperature coefficient of output voltage Ripple rejection PQ3RF23 Dropout voltage PQ3RF33 ON-state voltage for control ON-state current for control OFF-state voltage for control OFF-state current for control Quiescent current *3 *4 Input voltage shall be the value when output voltage is 95% in comparison with the initial value. In case of opening control terminal 4,output voltage turns on. Fig.1 Test Circuit Fig.2 Test Circuit of Ripple Rejection VIN 1 q 2 q 4 q 3 q VC 47F VO 1 q 2 q 4 q 3 q 47F + + IO RL V eo ~ A + IO ~ ei 0.33F A Iq IC V RL VIN 0.33F A f=120Hz (sine wave) ei=0.5Vrms VIN=5V IO=0.5A RR=20 log (ei/eo) Fig.3 20 18 Power Dissipation vs. Ambient Temperature (PQ3RF23) PD2 15 10 5 1.5 0 -20 PD1 0 20 40 60 80 Ambient temperature Ta (C) Note) Oblique line portion:Overheat protection may operate in this area. ,,, ,,, ,,, ,,, Fig.4 20 18 Power dissipation vs. Ambient temperature (PQ3RF33) PD2 15 10 5 1.8 0 -20 PD1 0 20 40 60 80 Ambient temperature Ta (C) Note) Oblique line portion:Overheat protection may operate in this area. ,,, ,,, ,,, ,,, Power dissipation PD (W) Power dissipation PD (W) Low Power-Loss Voltage Regulators Fig.5 4 PQ3RF23/PQ3RF33 Fig.6 4 Overcurrent Protection Characteristics (PQ3RF23) Tj=25C VIN=3.8V 4.3V 5V 7V 10V Overcurrent Protection Characteristics (PQ3RF33) VIN=3.8V 4.3V 5V 7V 10V Output voltage VO (V) Output voltage VO (V) 3 3 2 2 1 1 Tj=25C 0 1 5 2 3 4 Output current IO (A) 6 7 0 1 5 2 3 4 6 Output current IO (A) 7 8 Fig.7 100 Output voltage deviation VO (mV) 80 60 40 20 0 -20 -40 -60 -80 Output Voltage Deviation vs. Junction Temperature (PQ3RF23) Fig.8 100 Output Voltage Deviation vs. Junction Temperature (PQ3RF33) Output voltage deviation VO (mV) 80 60 40 20 0 -20 -40 -60 -80 -100 -25 0 25 50 75 100 Junction temperature Tj (C) 125 VIN=5V IO=0A VIN=5V IO=0A -100 -25 0 25 50 75 100 Junction temperature Tj (C) 125 Fig.9 4 Output voltage VO (V) Output Voltage vs. Input Voltage (PQ3RF23) Tj=25C Fig.10 Output Voltage vs. Input Voltage (PQ3RF33) 4 Tj=25C RL= RL=3.3 2 RL=1.65 RL=0.94 3 RL= RL=3.3 RL=1.65 Output voltage VO (V) 3 2 1 1 0 1 5 2 3 4 6 Input voltage VIN (V) 7 8 0 1 5 2 3 4 6 Input voltage VIN (V) 7 8 Low Power-Loss Voltage Regulators Fig.11 Circuit Operating Current vs. Input Voltage (PQ3RF23) Circuit operating current IBIAS (mA) Tj=25C 100 PQ3RF23/PQ3RF33 Fig.12 Circuit Operating Current vs. Input Voltage (PQ3RF33) Circuit operating current IBIAS (mA) Tj=25C 100 50 RL=1.65 RL=3.3 RL= 0 1 2 3 4 5 6 Input voltage VIN (V) 7 8 50 RL=0.94 RL=1.65 RL=3.3 RL= 0 1 2 3 4 5 6 Input voltage VIN (V) 7 8 Fig.13 Dropout Voltage vs. Junction Temperature (PQ3RF23) 0.5 0.4 IO=2.0A 0.3 IO=1.5A 0.2 0.1 0 -25 IO=1.0A IO=0.5A Fig.14 Dropout Voltage vs. Junction Temperature 0.5 (PQ3RF33) 0.4 IO=3.5A IO=3.0A 0.3 IO=2.0A 0.2 IO=1.0A 0.1 0 -25 Dropout voltage Vi-O (V) Dropout voltage Vi-O (V) 0 25 50 75 100 Junction temperature Tj (C) 125 0 25 50 75 100 Junction temperature Tj (C) 125 Fig.15 Quiescent Current vs. Junction Temperature (PQ3RF23) 5 4 VIN=5V IO=0A Quiescent current Iq (mA) Fig.16 Quiescent Current vs. Junction Temperature (PQ3RF33) 5 4 Quiescent current Iq (mA) 3 2 1 VIN=5V IO=0A 3 2 1 0 -25 0 25 50 75 100 Junction temperature Tj (C) 125 0 -25 0 25 50 75 100 Junction temperature Tj (C) 125 Low Power-Loss Voltage Regulators Fig.17 Ripple Rejection vs. Input Ripple Frequency (PQ3RF23) 80 70 VIN=5V IO=0.5A ei=0.5Vrms PQ3RF23/PQ3RF33 Fig.18 Ripple Rejection vs. Input Ripple Frequency (PQ3RF33) 80 70 Ripple rejection RR (dB) Ripple rejection RR (dB) VIN=5V IO=0.5A ei=0.5Vrms 60 50 40 30 20 10 0 0.1 1 10 Input ripple frequency f (kHz) 100 60 50 40 30 20 10 0 0.1 1 10 Input ripple frequency f (kHz) 100 Fig.19 Ripple Rejection vs. Output Current (PQ3RF23) 80 VIN=5V ei=0.5Vrms f=120Hz Fig.20 Ripple Rejection vs. Output Current (PQ3RF33) 80 VIN=5V ei=0.5Vrms f=120Hz Ripple rejection RR (dB) 70 60 50 40 Ripple rejection RR (dB) 2 70 60 50 40 30 0 0.5 1 1.5 Output current IO (A) 0 0.5 1 1.5 2 2.5 Output current IO (A) 3 Fig.21 Output Peak Current vs. Junction Temperature (PQ3RF23) 6.0 VIN=10V 5.5 Output peak current IOP (A) Fig.22 Output Peak Current vs. Junction Temperature (PQ3RF33) 8.0 7.5 Output peak current IOP (A) VIN=10V VIN=7V VIN=5V VIN=4.3V VIN=7V 5.0 4.5 4.0 3.5 3.0 2.5 2.0 -25 IOP:Output current when VIN=3.8V output voltage is 95% in comparison with the initial value 25 50 75 100 0 Junction temperature Tj (C) 125 VIN=5V VIN=4.3V 7.0 6.5 6.0 5.5 5.0 4.5 4.0 -25 VIN=3.8V IOP:Output current when output voltage is 95% in comparison with the initial value 25 50 75 100 0 Junction temperature Tj (C) 125 Low Power-Loss Voltage Regulators s Typical Application DC input 1 q Specific IC 3 q 0.33F 2 q 4 q + PQ3RF23/PQ3RF33 VO CO ON/OFF Control High or Open :output ON Low :output OFF Load |
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