PQ20WZ11

Low Power-Loss Voltage Regulators PQ20WZ51/PQ20WZ11 PQ20WZ51/PQ20WZ11 Variable Output, General Purpose, Surface Mount Type Low Power-Loss Voltage Regulator ■ Features Low power-loss (Dropout voltage : MAX. 0.5V) ● Surface mount package (equivalent to SC-63) ● Variable output voltage (3.0 to 20V) ● Output current (0.5A : PQ20WZ51) (1.0A : PQ20WZ11) ● Reference voltage precision : ±2.5% ● Built-in ON/OFF control function ● Low dissipation current at OFF-state (Iqs : MAX. 5µA) ● Built-in overcurrent, overheat protection functions, ASO protection circuit ● Available tape-packaged products (ø330mm reel : 3 000 pcs., PQ20WZ5U/1U) ■ 2.3 ± 0.5 ( 0.5 ) 3 Epoxy resin ( 1.7 ) 5.5 ± 0.5 Model No. 2.5 MIN. 9.7 MAX. 6.6 MAX. 5.2 ± 0.5 0.5± 0.2 0.1 ( 0.5 ) 4 – ( 1.27 ) Applications 1 Personal computers ● CD-ROM drives ● Power supplies for various OA equipment (Unit : mm) Outline Dimensions ● 2 3 4 ( 0.9 ) ■ 5 ● Internal connection diagram 1 3 Specific IC 2 4 5 ■ Absolute Maximum Ratings Parameter Symbol voltage control terminal voltage ❇1 Output adjustment terminal voltage Output current Power dissipation(with infinite heat sink) ❇2 Junction temperature Operating temperature Storage temperature ❇3 Soldering temperature VIN Vc VADJ Io PD Tj Topr Tstg Tsol ❇1 Input ❇1 ON/OFF DC input(VIN ) ON/OFF control terminal( Vc ) DC output ( Vo ) Output voltage adjustment terminal (VADJ ) GND Heat sink is common to terminal 3 ( Vo ) 1 2 3 4 5 (Ta=25˚C) Rating PQ20WZ51 PQ20WZ11 24 24 5 1.0 0.5 8 150 –20 to +80 –40 to +150 260 Unit V V V A W ˚C ˚C ˚C ˚C ❇1 All are open except GND and applicable terminals. Overheat protection may operate at 125