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| Low Power-Loss Voltage Regulators PQ05RF14 PQ05RF14 1A Output, Low Power-Loss Voltage Regulator Considering Power Line Voltage Drop s Features Low power-loss (Dropout voltage : MAX. 0.5V) Compact resin full-mold package Output voltage value (5.1V) with an allowance for power line voltage drop High-precision output voltage type (output voltage precision : 2.5%) Built-in ON/OFF control function s Outline Dimensions 10.2MAX 3.60.2 4.50.2 (Unit : mm) 2.80.2 7.40.2 29.1MAX PQ05RF14 4-1.4 13.5MIN 4-0.6 +0.3 -0 +0.2 -0.1 s Applications Series power supply for various electronic equipment such as VCRs and electronic instruments 3-(2.54) (0.5) 1234 qqqq Internal connection diagram 1 Specific IC 4 3 2 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 Rating Unit VIN 35 V VC 35 V IO 1 A PD1 1.5 W PD2 15 W Tj 150 C Topr -20 to +80 C Tstg -40 to +150 C Tsol 260 (For 10s) C *2 Input voltage ON/OFF control terminal voltage Output current Power dissipation (No heat sink) Power dissipation (with infinite heat sink) Junction temperature Operating temperature Storage temperature Soldering temperature All are open except, GND and applicable terminals. Over heat protection may operate at 125= * Please refer to the chapter" Handling Precautions ". " 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 Line regulation Temperature coefficient of output voltage Ripple rejection Dropout voltage ON-state voltage for control ON-state current for current OFF-state voltage for control OFF-state current for control Quiescent current *3 *4 PQ05RF14 (Unless otherwise specified,condition shall be VIN=7V, Io=0.5A, Ta=25C) Symbol VO RegL RegL TcVo RR Vi-o VC(ON) IC(ON) VC(OFF) IC(OFF) Iq Conditions IO=5mA to 1A VIN=6 to 16V Tj=0 to 125C Refer to Fig. 2 *3 *4 VC=2.7V VC=0.4V IO=0A MIN. 4.97 45 2.0 - TYP. 5.1 0.1 0.5 0.02 55 - MAX. 5.23 2.0 2.5 0.5 20 0.8 -0.4 10 Unit V % % %/C dB V V A V mA mA 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 VIN 1 q 2 q 4 q 3 q 0.33F VC 47F VO Fig.2 Test Circuit of Ripple Rejection + 1 q ei ~ VIN 0.33F 3 q 2 q 4 q 47F + IO A Iq IC + A IO IO=0.5A RL V eo ~ f=120Hz (sine wave) ei=0.5Vrms RR=20 log (ei/eo) V RL A Fig.3 Power Dissipation vs. Ambient Temperature 20 PD1 :No heat sink PD2 :With infinite heat sink Fig.4 Overcurrent Protection Characteristics (Typical Value) 100 Relative output voltage (%) Power dissipation PD (W) 15 PD2 80 60 40 10 5 PD1 20 0 0 50 100 150 Ambient temperature Ta (C) Note) Oblique line portion:Overheat protection may operate in this area. 0 -20 0 0.3 0.6 0.9 1.2 1.5 1.8 Output current IO (A) 2.1 Low Power-Loss Voltage Regulators Fig.5 Output Voltage vs. Input Voltage 8 7 Output voltage VO (V) Circuit operating current IBIAS (mA) PQ05RF14 Fig.6 Circuit Operating Current vs. Input Voltage 40 6 5 4 3 2 1 0 0 2 4 6 8 Input voltage VIN (V) 10 RL= RL=10 RL=5 30 20 RL=5 10 RL=10 RL= 0 0 5 Input voltage VIN (V) 10 Fig.7 Dropout Voltage vs. Junction Temperature 0.5 0.4 IO=1A 0.3 0.75A 0.2 0.5A 0.25A Fig.8 Quiescent Current vs. Junction Temperature 10 VIN=35V IO=0 8 6 Quiescent current Iq (mA) Dropout voltage Vi-O (V) 4 2 0 -25 0.1 0 -25 0 25 50 75 100 Junction temperature Tj (C) 125 0 25 50 75 100 Junction temperature Tj (C) 125 Fig.9 Ripple Rejection vs. Input Ripple Frequency 80 70 Ripple rejection RR (dB) 60 50 40 30 20 10 0 0.1 IO=0.5A,ei=0.5Vrms, VIN=7V 1 10 Input ripple frequency f (kHz) 100 Fig.10 Ripple Rejection vs. Output Current 80 Ripple rejection RR (dB) 70 60 50 40 30 0 f=120Hz,ei=0.5Vrms, VIN=7V 0.2 0.4 0.6 0.8 Output current IO (A) 1.0 Low Power-Loss Voltage Regulators Fig.11 Output Peak Current vs. Dropout Voltage 2.0 Output peak current IOP (A) PQ05RF14 Fig.12 Output Peak Current vs. Junction Temperature 2.0 Output peak current IOP (A) VIN-Vo=5V 1.5 2V 1.0 0.5V 1.5 1.0 Tj=25C 0 5 10 Dropout voltage Vi-O (V) 15 IOP:Output current when output voltage is 95% in comparison with the initial value 0.5 -20 0 25 50 75 100 Junction temperature Tj (C) 125 |
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