MIC47050 Datasheet | Micrel Semiconductor

Description The MIC47050 is a high-speed, ultra-low dropout, dualsupply 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 500m A of output current while only requiring a 1µF ceramic output capacitor for stability. A 1.5% output voltage accuracy, low dropout voltage (44m V @ 500m A), 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 - 40C to 125C. Data sheets and support documentation can be found on Micrel’s web site at: .micrel.. 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 44m V at 500m A - ±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 - 40C to +125C Applications - Point-of-load applications - PDAs, notebooks, and desktops - Data and tele systems - DSP, PLD and FPGA power supply - Low-voltage post regulation Typical Application ULDO is a trademark of Micrel Inc. MLF...