SM5109 SILICONMITUS | Alldatasheet

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Technical content

Features

 Programmable Positive Output: 4.0 V to 6.5 V (0.1 V Steps)  Programmable Negative Output: -4.0 V to -6.5 V (0.1 V Steps)  Over 85% Efficiency at IOUT > 10 mA  1.5% Output Voltage Accuracy  Under-Voltage Lockout (UVLO) Rising/Falling  Wide Input Voltage Range, 2.7 V to 5.0 V  Programmable Parameters via I2C Compatible Interface . Output Voltages on Both Positive (OUTP) and Negative (OUTN) . Active-Discharge . 400 kHz Full-Speed I2C Interface  15-bump 1.23 mm x 2.03 mm (0.4 mm Pitch) WLCSP Package

Applications

 Smart Phones TFT LCD  Portable Devices TFT LCD

Description

The SM5109 is designed to provide power supply with positive and negative output voltage driving TFT-LCD panels up to 10 inches. The device features programmable positive and negative output by an integrated boost converter, LDO and negative charge pump. It also features maximized efficiency by integrating synchronous rectification MOSFETs for the boost converter, LDO and negative charge pump. The device operates in single-cell Li-Ion, Ni-Li and Li-Polymer batteries with the input range of 2.7 V to 5.0 V. The SM5109 is available in a 15-bump, 1.23 mm x 2.03 mm (0.4 mm pitch) WLCSP package. Device Information Part Package Size SM5109 15 WLCSP 1.23 mm x 2.03 mm Simplified Block Diagram Silicon Mitus cannot assume any responsibility for the consequence of use of information furnished nor for any infringement o f patents or other rights of third parties which may result from its use. No Circuit patent licenses are implied. Silicon Mitus reserves the right to change the circuitry and specifications without notice at any time. This publication supersedes and replaces all information previously supplied. Silicon Mitus products are not authorized for use as critica l components in life support devices or systems without the express written approval of Silicon Mitus. © 2017 Silicon Mitus, Inc. - Printed in Korea - All Rights Reserved Master Controller I2C Interface Boost Controller LDO Charge Pump OUTP OUTN CFLY1 CFLY2 PGND1 PGND2 REG2 L SW AGND VIN Processor SCL SDA ENP ENN System I/O ON OFF ON OFF Programmable from 4V to 6.5V in 100mV steps Programmable from -4V to -6.5V in 100mV steps 200kΩ 200kΩ SM5109 DC, 2.7V to 5.0V REG1