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MIC47050YML Datasheet(PDF) 1 Page - Micrel Semiconductor |
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MIC47050YML Datasheet(HTML) 1 Page - Micrel Semiconductor |
1 / 16 page MIC47050 500mA ULDO™ with Low Input and Low Output Voltage ULDO is a trademark of Micrel Inc. MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc. Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com April 2012 M9999-040312-B General Description The MIC47050 is a high-speed, ultra-low dropout, dual- supply NMOS ULDO™ designed to take advantage of point-of-load applications that use multiple supply rails to generate a low-voltage, high-current power supply. The MIC47050 can source 500mA of output current while only requiring a 1µF ceramic output capacitor for stability. A 1.5% output voltage accuracy, low dropout voltage (44mV @ 500mA), and low ground current makes this device ideally suited for mobile and point-of-load applications. The MIC47050 has an NMOS output stage offering very low output impedance. The NMOS output stage makes for a unique ability to respond very quickly to sudden load changes such as that required by a microprocessor, DSP or FPGA. The MIC47050 consumes little quiescent current and therefore can be used for driving the core voltages of mobile processors, post regulating a core DC/DC converter in any processor. The MIC47050 is available in fixed and adjustable output voltages in the tiny 2mm x 2mm MLF ® and Thin MLF® packages with an operating junction temperature range of 40C to 125C. Data sheets and support documentation can be found on Micrel’s web site at: www.micrel.com. Features Voltage range – Input Voltage: 1.0V to 3.6V – Bias Voltage: 2.3V to 5.5V 0.4V to 2.0V output voltage range Low dropout voltage of 44mV at 500mA ±1.5% initial output voltage accuracy High bandwidth – very fast transient response Stable with a 1µF ceramic output capacitor Logic level enable input UVLO on both supply voltages Available in thermally-enhanced 2mm x 2mm MLF® and Thin MLF ® packages Junction temperature range of –40C to +125C Applications Point-of-load applications PDAs, notebooks, and desktops Datacom and telecom systems DSP, PLD and FPGA power supply Low-voltage post regulation _________________________________________________________________________________________________________________________ Typical Application |
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