STK740-470 Sanyo Semicon Device, STK740-470 Datasheet
STK740-470
Related parts for STK740-470
STK740-470 Summary of contents
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... Ordering number:EN*6107 Preliminary Overview The STK740-470 is a separate-excitation step-down chopper regulator hybrid IC for the secondstage circuit. This IC incorporates in the package all the necessary circuits for a chopper regulator including power switch, error amplifier, soft start, shutdown type output short protection, low-voltage malfunction prevention, on/off, and snubber circuits ...
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... STK740-470 Output voltage Output current (output pins not included) 2.5V 5A 2.5V 10A 25.5 5A 3.3V 10A 25 25.5 5.0V 10A 25.5 15A 25 ...
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... GND OUT 11 STK740-470 TR1 Snubber circuit Drive circuit PWM On/off circuit Soft start circuit Short protection circuit Description Remote on/off switching Output voltage sensing Output voltage fine adjustment Feedback (error amplifier output), phase compensation ...
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... In a constant-voltage power supply circuit output voltage may generally exceed the stipulated rating (equivalent to input voltage) when the circuit is broken down or the IC and the printed circuit board is wrongly soldered. Therefore overvoltage protection circuit is recommended to use to minimize the damages caused by the overvoltage. FUSE DC INPUT GND STK740-470 ...
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... Sample Characteristics 25˚C, in the test circuit 5.4 5.2 5.0 4.8 4 100 STK740-470 Output Voltage vs.Output Current Output Current Io[A] Efficiency vs.Output Current Output Current Io[A] V =15V IN V =12V =12V IN V =15V No.6107–5/10 ...
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... STK740-470 Output Voltage vs.Input Voltage 10 15 Input Voltage V [ Fin Output Current Derating Ambient Temperature Ta[ C] Io= = =12V IN V =15V 100 No.6107–6/10 ...
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... STK740-470 No Fin Tc vs.Output Current Output Current Io[A] Power Dissipation vs Output Current Output Current Io[A] V =15V IN V =12V =15V IN V =12V No.6107–7/10 ...
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... Connect GND pin (pin 5) with the input capacitor (–) or the output capacitor (–). However, connect with the output capacitor (–) unless otherwise specified. 5 Shorten the length of the line between the input capacitor (–) and the output capacitor (–) as well as possible. 6 Connect V pin (pin 2) with the output capacitor (+). S STK740-470 ...
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... Perspective Wiring Layout (from soldered side) R6 C1a C1b VIN GND C1c CN1 C8 Circuit Pattern (soldered side) STK740-470 IC1 R5 R1R2 FB1 C2a C2b STK740-400 TEST S-GND ON/OFF R3 +Vs C2c +Vo GND No.6107–9/10 ...
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... SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of June, 1999. Specifications and information herein are subject to change without notice. STK740-470 PS No.6107–10/10 ...