Low Power-Loss Voltage Regulators PQ7VZ5 PQ7VZ5 Variable Output, Compact Surface Mount Type Low Power-Loss Voltage Regulators ■ Outline Dimensions (Unit : mm) 2.3±0.5 6.6MAX 5.2±0.5 (0.5) 3 7VZ5 (1.7) 9.7MAX ¡Low power-loss (Dropout voltage:MAX. 0.5V) ¡Variable output type (1.5V to 7V) ¡Surface mount type package (equivalent to EIAJ SC-63) ¡Output current:MAX.0.5A ¡Low dissipation current at OFF-state (Iqs:MAX.5µA) ¡Built-in ON/OFF control function ¡Reference voltage precision:±2.0% ¡Tape packaged type is also available. (Reel:3 000pcs.) 5.5±0.5 ■ Features (0to0.25) ■ Applications 4-(1.27) (0.9) 2.5MIN 0.5 +0.2 -0.1 (0.5) ¡Personal computers ¡Word processors ¡Printers ¡Camcoders ¡Personal Information Tools(PDA) 12345 Internal connection diagram 1 2 3 Specific IC 5 ■ Absolute Maximum Ratings Parameter *1 *1 *1 *2 *3 *1 *2 *3 Input voltage ON/OFF control terminal voltage Output adjustment terminal voltage Output current Power dissipation Junction temperature Operating temperature Storage temperature Soldering temperature 4 1 VIN 2 ON/OFF control 3 VOUT 4 OADJ 5 GND Heat sink is common to 3 (VOUT) (Ta=25˚C) Symbol VIN VC VADJ IO PD Tj Topr Tstg Tsol Rating 10 10 7 0.5 8 150 -20 to +80 -40 to +150 260 (For 10s) Unit V V V A W ˚C ˚C ˚C ˚C All are open except GND and applicable terminals. PD:With infinite heat sink. Overheat protection may operate at 125=<Tj=<150˚C · 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. ” Low Power-Loss Voltage Regulators ■ Electrical Characteristics (Unless otherwise specified, conditions shall be VIN=5V, VO=3V(R1=1kΩ), Io=0.3A, VC=2.7V, Ta=25˚C) Parameter Input voltage Output voltage variable range Load regulation Line regulation Ripple rejection Dropout voltage Reference voltage Temperature coefficient of reference voltage ON-state voltage for control ON-state current for control OFF-state voltage for control OFF-state current for control Quiescent current Output OFF-state consumption current Symbol VIN VO RegL RegI RR Vi-o Vref TCVref VC (ON) IC (ON) VC (OFF) IC (OFF) Iq Iqs Condition IO=5mA to 0.5A VIN=4 to 10V, IO=5mA Refer to Fig. 2 VIN=3.4, IO=0.3A IO=5mA, Tj=0 to 125˚C NIN. 3.4 1.5 45 1.225 2.0 - *4 IC=0A VC=0.4V, IC=0A IC=0A VC=0.4V TYP. 0.2 0.2 60 1.25 ±1.0 4 - MAX. 10.0 7.0 2.0 2.5 0.5 1.275 200 0.8 2 7 5 Unit V V % % dB V V % V µA V µA mA µA In case of opening control terminal 2 , output voltage turns off. Fig.1 Test Circuit VIN 0.33µF 1 ● Fig.2 47µF 3 ● R2 ● VC 2 A 5 ● A 4 ● Iq 1kΩ 0.33µF VO IO A + R1 V Test Circuit for Ripple Rejection ~ ei 2 ● V VIN RL 10 Power Dissipation vs. Ambient Temperature Fig.4 0 50 80 100 150 Ambient temperature Ta (˚C) Note) Oblique line portion:Overheat protection may operate in this area. 5 ● IO 47µF 4 ● + R1 1kΩ V ~ eo RL 4 Overcurrent Protection Characteristics(Typical Value) Ta =25˚C VO=3V(R1=1kΩ,R2=1.4kΩ) Output voltage VO (V) PD 0 -20 + f=120Hz (sine wave) ei=0.5Vrms IO=0.3A RR=20 log (ei/eo) VIN=5V VO=3V (R1=1kΩ) PD:With infinite heat sink 5 47µF 3 ● VC [R1=390Ω,Vref = 1.25V] Fig.3 1 ● R2 R2 R2 VO=Vref X 1+- = 1.25 X 1+R1 R1 Power dissipation PD (W) *4 PQ7VZ5 3 Vi-O =0.5V 2 Vi-O =1V Vi-O =5V Vi-O =2V 1 0 0 0.5 1.0 1.5 Output current IO (A) 2.0 Low Power-Loss Voltage Regulators 8 Output Voltage Adjustment Characteristics Fig.6 R1=1kΩ Reference voltage deviation ∆Vref (mV) Fig.5 Output voltage VO (V) 7 6 5 4 3 2 1 0 0.1 Fig.7 100 1000 RL=1.2Ω RL=∞ RL=0.6Ω 2 1 0 1 2 3 4 5 Input voltage VIN (V) 6 2 0 -2 -4 -6 -8 -10 -25 VIN =0.95VO VO=3V(R1=1kΩ,R2=1.4kΩ) 0.4 0.3 0.2 0.1 0 -25 IO=0.5A IO=0.4A IO=0.3A IO=0.2A IO=0.1A 0 25 50 75 100 Junction temperature Tj (˚C) 125 0 25 50 75 100 Junction temperature Tj (˚C) 125 Circuit Operating Current vs. Input Voltage Ta =25˚C VO=3V (R1=1kΩ, R2=1.4kΩ) RL=6Ω 20 RL=10Ω 10 RL=∞ 0 7 Dropout Voltage vs. Junction Temperature(Typical Value) 0.5 4 Circuit operating current IBIAS (mA) Ta =25˚C VO=3V(R1=1kΩ,R2=1.4kΩ) 3 Fig.9 VIN=5V 8 VO=3V(R1=1kΩ,R2=1.4kΩ) 6 IO=0.3A Fig.8 0 1 2 3 4 5 Input voltage VIN (V) 6 7 Fig.10 ON-state Voltage for Control vs. Junction Temperature(Typical Value) ON-state voltage for control VC(ON) (V) Output voltage VO (V) 10 R2 (kΩ) Reference Voltage Deviation vs. Junction Temperature(Typical Value) 10 30 4 Dropout voltage Vi-O (V) 1 Output Voltage vs. Input Voltage 0 PQ7VZ5 3.0 VIN =5V VO=3V(R1=1kΩ,R2=1.4kΩ) 2.5 IO=0.3A 2.0 1.5 1.0 0.5 0 -25 0 25 50 75 100 Junction temperature Tj (˚C) 125 Low Power-Loss Voltage Regulators Fig.11 Quiescent Current vs. Junction Temperature(Typical Value) PQ7VZ5 Fig.12 Ripple Rejection vs. Input Ripple Frequency 5 70 Ripple rejection RR (dB) Quiescent current Iq (mA) VIN =5V VO=3V(R1=1kΩ,R2=1.4kΩ) 4 IO =0.3A 3 2 1 0 -25 0 25 50 75 100 Junction temperature Tj (˚C) 125 60 50 40 30 20 VIN=5V VO=3V(R1=1kΩ,R2=1.4kΩ) 10 Io=0.3A ei=0.5Vrms 0 0.1 1 10 Input ripple frequency f (kHz) Fig.13 Output Peak Current vs. Junction Temperature(Typical Value) Output peak current IOP (A) 2.0 VIN=5V VO=3V(R1=1kΩ,R2=1.4kΩ) VIN-VO =5V 1.5 2V 1V 1.0 0.5V 0.5 IOP:Output current when output voltage is 95% in comparison with the initial value 0 -25 0 25 50 75 100 Junction temperature Tj (˚C) 125 Fig.14 Power Dissipation vs. Ambient Temperature(Typical Value) Power dissipation PD (W) 3 Cu area 740mm2 2 PWB Cu area 180mm2 Cu area 100mm2 PWB Cu 1 Material : Glass-cloth epoxy resin Size : 50X50X1.6mm 3 Cu thickness : 35µm 2 Cu area 70mm Cu area 36mm2 0 -20 60 80 0 20 40 Ambient temperature Ta (˚C) 100 100 Low Power-Loss Voltage Regulators PQ7VZ5 ■ Model Line-ups for Tape-packaged Products Output current 0.5A output Sleeve-packaged products High-precision output type Standard type PQ7VZ5 - Tape-packaged products Standard type High-precision output type PQ7VZ5U ■ Adjustment of Output Voltage Output voltage is able to be set from 1.5V to 7V when resistors R 1, R2 are attached to £, ¢, ∞ terminals. As for the external resistors to set output voltage, refer to the following figure or Fig.5. VO 3 R2 - 4 R1 + 5 Vref VO=Vref X (1+R2/R1) =1.25X (1+R2/1000) (R1=1kΩ,Vref =1.25V)