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PQ20WZ51 Datasheet(PDF) 2 Page - Sharp Corporation |
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PQ20WZ51 Datasheet(HTML) 2 Page - Sharp Corporation |
2 / 6 page Low Power-Loss Voltage Regulators PQ20WZ51/PQ20WZ11 s Electrical Characteristics Fig. 1 Test Circuit Fig. 2 Test Circuit for Ripple Rejection Fig. 4 Overcurrent Protection Characteristics (Typical Value) (PQ20WZ51) Fig. 3 Power Dissipation vs. Ambient Temperature Parameter Symbol Conditions VIN Vo RegL RegI RR Vref VcVref Vi-o Iq Vc(ON) Ic(ON) Vc(OFF) Ic(OFF) Iqs Unit MAX. TYP. MIN. 3.5 3.0 –– –– 45 2.574 –– –– –– 2.0 –– –– –– –– –– –– ❇5 VIN=4 to 10V, Io=5mA Refer to Fig. 2 ❇4 Tj=0 to 125˚C, Io=5mA ❇4, 6 Io=0A –– –– Io=0A Io=0A, Vc=0.4V Io=0A, Vc=0.4V –– –– –– –– 60 2.64 ±1.0 –– –– –– –– –– –– –– 24 20 2.0 2.5 –– 2.706 –– 0.5 8 –– 200 0.8 2.0 5.0 ❇4 PQ20WZ51:Io=0.3A, PQ20WZ11:Io=0.5A ❇5 PQ20WZ51:Io=5mA to 0.5A, PQ20WZ11:Io=5mA to 1.0A ❇6 Input voltage shall be the value when output voltage is 95% in comparison with the initial value. ❇7 In case of opening control terminal , output voltage turns off. (Unless otherwise specified, conditions shall be VIN=5V, Vo=3.3V,❇4,R1=2k Ω, R2=500Ω, Vc=2.7V, Ta=25˚C) V V % % dB V % V mA V µA V µA µA Input voltage Output voltage Load regulation Line regulation Ripple rejection Reference voltage Temperature coefficient of Reference voltage Dropout voltage Quiescent current ❇7 ON-state voltage for control ON-state current for control OFF-state voltage for control OFF-state current for control Output OFF-state consumption current 2 0 –20 0 PD PD:With infinite heat sink 80 50 100 150 5 10 8 Ambient temperature Ta (˚C) 0 0.5 1.0 1.5 2.0 4 3 2 1 0 Output current IO (A) Vi–O =2V Vi–O =3V Vi–O =0.5V VO=3.3V Vi–O =1V A A V V A VIN VC Iq Vref IC 2k Ω IO VO RL 47 µF 0.33 µF + R2 R1 VO=Vref X 1+ ––––– R2 R1 [R1=2k Ω,Vref Nearly =2.64V] 1 2 3 4 5 VC 47 µF VIN ei 2.7V eo 2k Ω IO RL 0.33 µF + R2 R1 f=120Hz(sine wave) ei(rms)=0.5V IO=0.3A RR=20 log(ei(rms)/eo(rms)) VIN=5V VO=3.3V(R1=2k Ω) 1 2 3 4 5 V Note) Oblique line portion : Overheat protection may operate in this area. |
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