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SI-3011ZF Scheda tecnica(PDF) 1 Page - Allegro MicroSystems |
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SI-3011ZF Scheda tecnica(HTML) 1 Page - Allegro MicroSystems |
1 / 8 page Designed to meet the high-current requirements in industrial and consumer applications; embedded core, memory, or logic supplies; TVs, VCRs, and office equipment, the SI-3011ZF voltage regulator offers the reduced dropout voltage and low quiescent current essential for im- proved efficiency. This device delivers a regulated output at up to 3 A. Integrated thermal and overcurrent protection enhance overall system reliability. Devices with fixed output voltages of 2.5 V or 3.3 V are also available. Quiescent current does not increase significantly as the dropout voltage is approached, an ideal feature in standby/resume power systems where data integrity is crucial. Regulator accuracy and excellent temperature characteristics are provided by a bandgap reference. An LS-TTL/CMOS-compatible input gives the designer complete control over power up, standby, or power down. A pnp pass element provides a dropout voltage of less than 700 mV at 3 A of load current. Low output voltages eliminate the need for expensive PWM buck converters. The low dropout voltage permits more efficient regulation before output regulation is lost. This device is supplied in a fully molded TO-220-style 5-lead flange-mounted , high power, isolated plastic package. A similar device in a lower-power surface-mount plastic package is the SI-3011ZD. FEATURES ■ 3 A Output Current ■ 0.7 V Maximum Dropout Voltage at I O = 3 A ■ 1 µA Maximum Standby Current ■ Adjustable 1.1 ~ 5 V Output Voltage ■ Remote Voltage Sensing ■ Foldback Current Limiting ■ Thermal Protection APPLICATIONS ■ TVs, VCRs, Electronic Games ■ Embedded Core, Memory, or Logic Supplies ■ Printers and Other Office Equipment ■ Industrial Machinery ■ Secondary-Side Stabilization of Multi-Output SMPS High-Current, Low-Dropout, 1.1~5 V Regulator Always order by complete part number, e.g., SI-3011ZF . ABSOLUTE MAXIMUM RATINGS Input Voltage, V I . . . . . . . . . . . . . 10 V Output Current, I O . . . . . . . . . . . . . 3 A* Enable Input Voltage, V E . . . . . . . . 6 V Junction Temperature, T J . . . . +125°C Storage Temperature Range, T S . . . . . . . . . . . . -40°C to +125°C * Output current rating is limited by input voltage, duty cycle, and ambient tempera- ture. Under any set of conditions, do not exceed a junction temperature of +125°C. SI-3011ZF Linear Regulators Sanken Power Devices from Allegro MicroSystems |
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