Low Power-Loss oltage Regulators PQRX/PQRX PQRX/PQRX ariable Output Type Low Power-Loss oltage Regulator with ON/OFF Control Function Features Low power-loss (Dropout voltage: MX..) Compact resin full mold package (Equivalent to TO-) With built-in ON/OFF control function ariable output voltage (setting range:. to ). output (PQRX). output (PQRX) Reference voltage precision: ±.% With built-in overcurrent protection, overheat protection, SO protection circuit SO: rea of Safety Operation pplications Power supplies for various electronic equipment such as, O equipment CRT displays Outline Dimensions (Unit : mm) (.6 ) 7. ±..MX..8 φ. ±. PQRX Epoxy resin (.) (.).8 (.).±. (.7) 8.±.7.. ±.MIN 6. ±.7 Internal connection diagram DC input( IN) ON/OFF control terminal( c ) DC output ( o ) Specific IC Output voltage adjustment terminal( DJ ) GND bsolute Maximum Ratings PD Power dissipation PD Junction temperature Tj Operating temperature Topr Storage temperature Tstg Soldering temperature Tsol ll are open except GND and applicable terminals. PD: No heat sink, PD: With infinite heat sink Overheat protection may operate at <=Tj<=. (Ta=) Parameter Input voltage ON/OFF control terminal voltage Output adjustment terminal voltage Symbol IN c DJ Rating Unit Output current PQRX PQRX Io 7..(PQRX),.(PQRX) (PQRX),(PQRX) to +8 to + 6(for s) W Please refer to the chapter " Handling Precautions ". Notice In the absence of confirmation by device specification sheets,shrp takes no responsibility for any defects that may occur in equipment using any SHRP devices shown in catalogs,data books,etc.contact SHRP in order to obtain the latest device specification sheets before using any SHRP device. Internet Internet address for Electronic Components Group http://sharp-world.com/ecg/
Low Power-Loss oltage Regulators PQRX/PQRX Electrical Characteristics (Unless otherwise specified, IN=, O=.,, R=kΩ, R=Ω, C=.7, Ta=) Parameter Symbol Conditions MIN. TYP. MX. Unit Input voltage IN. Output voltage O. Load regulation RegL. % Line regulation RegI IN= to, Io=m. % Ripple rejection RR Refer to Fig. db Reference voltage ref.7.6.76 Temperature coefficient of reference voltage TCref Tj= to, Io=m ±. % Dropout voltage i-o, 6. Quiescent current Iq Io= 8 m 7 ON-state voltage for control C(ON). ON-state current for control IC(ON) µ OFF-state voltage for control C(OFF) Io=.8 OFF-state current for control IC(OFF) Io=, c=.. µ Output OFF-state consumption current Iqs c=.. µ PQRX: IO=., PQRX: IO=. PQRX: IO=m to., PQRX: IO=m to. 6 Input voltage shall be the value when output voltage is 9% in comparison with the initial value. 7 In case of opening ON/OFF control terminal, output voltage turns off. Fig. Test Circuit Fig. Test Circuit of Ripple Rejection IN.µF 7µF O.µF 7µF + C Iq kω R R + RL IO ei IN.7 R 7µF R kω + RL IO eo Fig. Power dissipation PD (W) R O=ref x + R [R=kΩ,ref Nearly=.6] Power Dissipation vs. mbient Temperature (PQRX) PD PD :No heat sink PD :With infinite heat sink PD 8 mbient temperature Ta () Note) Oblique line portion : Overheat protection may operate in this area. Fig. Power dissipation PD (W) f=hz(sine wave) ei(rms)=. IO=. RR= log(ei(rms)/eo(rms)) IN= O=.(R=kΩ) Power Dissipation vs. mbient Temperature (PQRX) PD PD PD :No heat sink PD :With infinite heat sink 8 mbient temperature Ta () Note) Oblique line portion : Overheat protection may operate in this area.
Low Power-Loss oltage Regulators PQRX/PQRX Fig. Overcurrent Protection Characteristics (Typical alue) (PQRX) O=. Fig. 6 Overcurrent Protection Characteristics (Typical alue) (PQRX) O=. i O =. Output voltage O () i O =. i O = i O = i O = Output voltage O () i O = i O = i O = Fig. 7 Output voltage O ().... Fig. 9 Output voltage O () Output current IO () Output oltage djustment Characteristics R=kΩ. R (kω) 8 7 6 Output oltage vs. Input oltage (PQRX) R=kΩ,R=.kΩ C=.7, Ci=.µF, C=7µF Tj= RL= Ω RL=Ω RL=6.6Ω 6 7 8 Input voltage IN () Fig. 8 Reference voltage deviation ref (m).... Output current IO () Reference oltage Deviation vs. Junction Temperature (Typical alue) IN=7 O=.(R=kΩ,R=.kΩ) IO=. (PQRX) =. (PQRX) PQRX PQRX 7 Junction temperature Tj () Fig. Output oltage vs. Input oltage (PQRX) Output voltage O () 8 7 6 R=kΩ,R=.kΩ C=.7, Ci=.µF, C=7µF Tj= RL= Ω RL=6.6Ω RL=.Ω 6 7 8 Input voltage IN ()
Low Power-Loss oltage Regulators PQRX/PQRX Fig. Dropout oltage vs. Junction Temperature (PQRX). IN=., c=.7, R=kΩ, R=Ω, Io=..9.8.7.6. Dropout voltage i O ()..... 7 Junction temperature Tj () Fig. Quiescent Current vs. Junction Temperature IN= IO= C=.7 R=kΩ R=Ω Quiescent current Iq (m) 7 Junction temperature Tj () Fig. Ripple Rejection vs. Output Current (PQRX) 8 Fig. Dropout oltage vs. Junction Temperature (PQRX).8 Dropout voltage i O ().7.6..... IN=., c=.7, R=kΩ, R=Ω, Io=.. 7 Junction temperature Tj () Fig. Ripple Rejection vs. Input Ripple Frequency 8 Ripple rejection RR (db) 7 7 6 6 PQRX PQRX Tj= IO=. IN= ei(rms)=.(sine wave) R=kΩ RR= log(ei(rms)/eo(rms)) R=.kΩ. Input ripple frequency f (khz) Fig.6 Ripple Rejection vs. Output Current (PQRX) 8 Ripple rejection RR (db) 7 7 6 6 Tj= IN= R=kΩ R=.kΩ ei(rms)=. f=hz (sine wave)......6.7.8.9 Output current IO () Ripple rejection RR (db) 7 7 6 6 Tj= IN= R=kΩ R=.kΩ ei(rms)=. f=hz (sine wave)......6.7.8.9 Output current IO ()
Low Power-Loss oltage Regulators PQRX/PQRX Fig.7 Circuit Operating Current vs. Input oltage (PQRX) c=.7, R=kΩ, R=Ω (o=.) Circuit operating current IBIS (m) 6 Input voltage IN () RL =6.6Ω RL =Ω RL = Ω Fig.8 Circuit Operating Current vs. Input oltage (PQRX) c=.7, R=kΩ, R=Ω (o=.) Circuit operating current IBIS (m) RL =.Ω RL =6.6Ω RL = Ω 6 7 8 Input voltage IN () Typical pplication DC input O IN Cin R CO + R kω Load ON/OFF signal High : Output ON Low or Open : Output OFF
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