LP8720 Datasheet | National Semiconductor

Description The LP8720 is a multi-function, programmable Power Management Unit, optimized for sub block power requirement solution. This device integrates one highly efficient 400 m A step-down DC/DC converter with Dynamic Voltage Scale (DVS), five low noise low dropout (LDO) voltage regulators and a 400 KHz I2C-patible interface to allow a host controller access to the internal control registers of the LP8720. The LP8720 additionally features programmable power-on sequencing. LDO regulators provide high PSRR and low noise ideally suited for supplying power to both analog and digital loads. The package will be the smallest 2.5 mm x 2.0 mm micro SMD 20- bump package. Features Regulator, IOUT 400 m A High efficiency PFM mode @low IOUT Auto Mode PFM/PWM switch Low inductance 2.2 µH @ 2 MHz clock Dynamic Voltage Scale control - I2C-patible interface for the controlling of internal registers - 20- bump 2.5 x 2.0 mm micro SMD package - 5 Low Noise LDO’s for up to 300 m A - One high-efficiency Synchronous Magnetic Buck Key Specifications - - - - Programmable Vout from 0.8V to 2.3V on DC/DC Automatic soft start on DC/DC 200 m V typ Dropout Voltage at 300 m A on LDO’s 2% (typ) Output Voltage accuracy on LDO’s Applications - Cellular Handsets - Portable hand-held products Typical Application Diagram © 2009 National Semiconductor Corporation .national. http://.. Device Pin Diagram (Micro SMD 20) TOP VIEW Package Marking Information Ordering Information Order Number LP8720TLE LP8720TLX Package Type micro SMD micro SMD Product Identification 8720 8720 Supplied as 250 Tape & Reel 3000 Tape & Reel Upon request there will be available custom versions - customer can order own default voltages and own startup sequence. For more information please contact local National Semiconductor Corp. sales office. .national. LP8720 Pin Descriptions Pin Number A4 E4 A2 D1 B4 A3 A1 C1 E1 E3 D2 D4 B1 C4 C3 B3 E2 B2 Name VBATT VINB VIN1...