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STK740-490 数据表(PDF) 1 Page - Sanyo Semicon Device |
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STK740-490 数据表(HTML) 1 Page - Sanyo Semicon Device |
1 / 10 page Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other parameters) listed in products specifications of any and all SANYO products described or contained herein. Thick Film Hybrid IC 3.3V/5A Single Output Separate Excitation Chopper Regulator Ordering number:EN6106 STK740-441 SANYO Electric Co.,Ltd. Semiconductor Company TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN 63099RM (KT) No.6106–1/10 1 12 11 ×2.54=27.94 0.5 2.54 37.0 4.5 2.9 Package Dimensions unit:mm 4171-SIP12 [STK740-441] SANYO : SIP-12 Overview The STK740-441 is a separate-excitation step-down chopper regulator hybrid IC for the secondstage circuit and optimal as a 3.3V local power supply for use in logic circuit that includes both 5V and 3.3V systems. 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 protec- tion, low-voltage malfunction prevention, on/off, and snubber circuits. Therefore, external components re- quired are input and output capacitors and choke coil only and this allows this IC to be used to construct a large-current (5A) chopper regulator as if a 3-pin regula- tor were used. Applications • 3.3V local power supply for the logic circuit where both 5V and 3.3V systems are constructed togeter. Features • Adoption of Sanyo IMST ; Insulated Metal Substrate Technology, allows the circuit to be operated without using a heat sink (see “No Fin Output Current Derat- ing” chart in the page 6). • Slim package reduces mounting space. • Typical efficiency of 88% at DC 5V input, 2.5A output. • Fine adjustment of output voltage enable. • 50 kHz operating frequency. • Low-RON resistance power MOSFET adopted. • Low-VF Schottky barrier diode adopted. |
类似零件编号 - STK740-490 |
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类似说明 - STK740-490 |
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