Primary Regulators
PQ1PF1
PQ1PF1
Primary Regulator for Switching Power Supply (50W Class)
s Features ¡5-terminal lead ...
Primary
Regulators
PQ1PF1
PQ1PF1
Primary
Regulator for Switching Power Supply (50W Class)
s Features ¡5-terminal lead forming package (equivalent to TO-220) ¡Built-in oscillation circuit (oscillation frequency : TYP. 100kHz) ¡Output for power supply : 50W class ¡Built-in overheat protection, overcurrent protection, low voltage mulfunction prevention function
s Outline Dimensions
(Unit : mm)
10.2MAX φ3.2±0.1
7.4±0.2 3.6±0.2
4.5±0.2 2.8±0.2
s Applications
¡Switching power supplies for VCRs ¡Switching power supplies for word processors
(24.6)
PQ1PF1 (1.5)
2.0
5.0±0.5
5-0.8±0.1
(0.5) 3.2±0.5
4-(1.7)
(5.0) 8.2±0.7 · ( ) : Typical value · Radius of lead forming portion R=TYP.1.0 1 Drain (VDS) 2 GND 3 Control (CA) 4 Feed back (FB) 5 Supply voltage (VCC)
1 q2 q3 q4 q5 q
s Absolute Maximum Ratings
Parameter Drain-GND(source)voltage Drain current Power supply voltage FB terminal input voltage CA terminal input current Power dissipation Junction temperature Operating temperature Storage temperature Soldering temperature
Voltage between VCC terminal and GND terminal. Voltage between FB terminal and GND terminal. PD1:No heat sink, PD2:With infinite heat sink Overheat protection may operate at 125=
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