MP2005DD-LF-Z Linear Voltage Regulator IC Positive Adjustable 1 Output 800mA 8-QFN (2x3)

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DESCRIPTION:
The MP2005 is a micropower, ultra low-dropout LDO linear regulator. It has a 1.0V to 5.5V input voltage range and can regulate the output voltage from as low as 0.5V. The MP2005 can supply up to 800mA of load current with a typical dropout voltage of 90mV. It requires a bias supply (2.7V to 5.5V) separate from VIN to run the internal reference and LDO drive circuitry. The output current comes directly from the input voltage supply for high efficiency regulation. The 0.5V internal reference voltage allows the output to be programmed to a wide range of voltages (0.5V to 4V). A low bias current of 100µA makes the MP2005 ideal for use in battery-powered applications. The bias supply VBIAS can be directly applied from the battery while VIN is powered from the high efficiency buck regulator (or other secondary supply). This reduces output noise and the size of the decoupling capacitor. Other features of MP2005 include thermal overload and current limit protection, stability with ultra low ESR ceramic capacitors as low as 1μF, and fast transient response. The MP2005 is available in a 8-pin QFN (2mm x 3mm) package.
FEATURES
 Wide 1.0V to 5.5V Input Voltage Range
 Stable with 1μF Ceramic Capacitor
 Ultra-Low Dropout (ULDO) voltage: 90mV@800mA
 2% Accurate Output Voltage
 Adjustable Output Range of 0.5V to 4V
 High PSRR o 65dB at 1KHz o 48dB at 1MHz
 Better Than 0.0005%/mA Load Regulation
 Stable With Low-ESR Output Capacitors
 Low 100μA Ground Current
 Internal Thermal Protection
 Current Limit Protection
 1µA Typical Quiescent Current at Shutdown
APPLICATIONS
 Low Current Regulators
 Low Power Handheld Devices
 Battery Powered Systems
 Cellular Phones
 Portable Electronic Equipment
 Post Regulation for Switching Power Supplies
 Power Supplies
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