MP1530 Datasheet | Monolithic Power Systems

DESCRIPTION The MP1530 bines a triple output step-up converter with linear regulators to provide a plete DC/DC solution. It is designed to power TFT LCD panels from a regulated 3.3V or 5V supply. This device integrates a 1.4MHz fixed-frequency step-up converter with positive and negative linear regulators. The step-up converter switch node drives two charge pumps, which supply powers to their respective linear regulators. The positive and negative linear regulator inputs can withstand up to 38V and down to -20V, respectively. A single on/off control enables all 3 outputs. The outputs are internally sequenced at startup for ease of use. An internal soft-start prevents input overload at startup. Cycle-by-cycle current limiting reduces ponent stress. The MP1530 is available in a tiny 3x3mm, 16pin QFN package or a 16-pin TSSOP package. EVALUATION BOARD REFERENCE Board Number Dimensions EV0055 2.4”X x 2.3”Y x 0.4”Z TYPICAL APPLICATION VIN 3.3V/5V OFF ON TO SW CT EN P IN SW FB1 IN2 IN3 GL FB2 FB3 REF GND PGND FEATURES - 2.7 to 5.5V Operating Input Range - 2.8A Switch Current Limit - 3 Outputs In a Single Package - Step-Up Converter up to 22V - Positive 20m A Linear Regulator - Negative 20m A Linear Regulator - 250mΩ Internal Power MOSFET Switch - Up to 95% Efficiency - 1.4MHz Fixed Frequency - Internal Power-On Sequencing - Adjustable Soft-Start/Fault Timer - Cycle-by-Cycle Over Current Protection - Under Voltage Lockout - Ready Flag - 16-Pin, QFN (3x3mm) or TSSOP Packages APPLICATIONS...