PQ1PF3

PRODUCT INFORMATION ® APPLICATIONS: DVD Notebook PC Set Top Box POS Optoelectronics Group FEATURES Five-terminal lead forming package (equivalent to TO-220) Built-in oscillation circuit (oscillation frequency: 100 kHz) Improved efficiency at low load, switching the oscillation frequency by external control signal Output for power supply 10 W class Built-in overheat protection, overcurrent protection, low voltage malfunction prevention function (24.6) 7.4 3.6 PQ1PF3/PQ2PF3 Primary Regulator for Switching Power Supply OUTLINE DIMENSIONS 10.2 MAX. 4.5 2.8 φ 3.2 (2.0) 1 2 3 5-0.8 4-(1.7) 4 5 (0.5) (5.0) 8.2 3.2 (1.5) DESCRIPTION SHARP’s PQ1PF3/PQ2PF3 are primary regulators for switching power supply. It reduces parts count and power loss of the switching section, by integrating a power MOS-FET and control IC into a single chip. NOTES: 1 Drain (VDS) 2 GND 3 Control (CA) 4 Feed back (FB) 5 Supply voltage (VCC) Dimensions are in mm. ABSOLUTE MAXIMUM RATINGS PL ARAMETER DV rain-GND (source) voltage DI rain current Power supply voltage1 FB terminal input voltage2 CI A terminal input current Power dissipation3 Junction temperature4 Or perating temperature Sg torage temperature Sl oldering temperature SYMBO DS D VCC VFB CA PD1 PD2 T0 j T0 op T0 st T) so RATING P3 Q1PF3 PQ2PF 50 00 8V 0 20 .5 2A . 3V 5 4V 2A 1W .5 1W 8 1C 5 -C 20 to +8 -C 40 to +15 2C 60 (for 10s UNIT m ° ° ° ° NOTES: 1. Voltage between VCC terminal and GND terminal 2. Voltage between FB termi...