15031

Bulletin #1503163 _____________________________________________________________________________________________________ W7206F2 Silicon Labs Bulletin rev G The information contained in this document is PROPRIETARY to Silicon Laboratories, Inc. and shall not be reproduced or used in part or whole without Silicon Laboratories’ written consent. The document is uncontrolled if printed or electronically saved. Pg 3 User Registration Register today to create your account on Silabs.com. Your personalized profile allows you to receive technical document updates, new product announcements, “how-to” and design documents, product change notices (PCN) and other valuable content available only to registered users. http://www.silabs.com/profile Bulletin Date: 3/16/2015 Bulletin Effective Date: 3/16/2015 Title: EFM32ZG Datasheet Revision Notification Originator: Ted Batey Phone: 512-532-5279 Dept: Marketing Customer Contact: Kathy Haggar Phone: 512-532-5261 Dept: Sales Bulleti

Bulletin #1503164 _____________________________________________________________________________________________________ W7206F2 Silicon Labs Bulletin rev G The information contained in this document is PROPRIETARY to Silicon Laboratories, Inc. and shall not be reproduced or used in part or whole without Silicon Laboratories’ written consent. The document is uncontrolled if printed or electronically saved. Pg 3 User Registration Register today to create your account on Silabs.com. Your personalized profile allows you to receive technical document updates, new product announcements, “how-to” and design documents, product change notices (PCN) and other valuable content available only to registered users. http://www.silabs.com/profile Bulletin Date: 3/16/2015 Bulletin Effective Date: 3/16/2015 Title: EFM32TG Datasheet Revision Notification Originator: Ted Batey Phone: 512-532-5279 Dept: Marketing Customer Contact: Kathy Haggar Phone: 512-532-5261 Dept: Sales Bulleti

1 LTC1503-1.8/LTC1503-2 High Efficiency Inductorless Step-Down DC/DC Converters n Input Voltage Range: 2.4V to 6V n Fixed Output Voltages: 1.8V – 4%, 2V – 4% n Output Current: Up to 100mA n No Inductors n Typical Efficiency 25% Higher than LDOs n Low Operating Current: 25m A n Low Shutdown Current: 5m A n 600kHz Switching Frequency n Shutdown Disconnects Load from V IN n Soft-Start Limits Inrush Current at Turn-On n Short-Circuit and Overtemperature Protected n Available in 8-Pin MSOP and SO Packages The LTC ? 1503-1.8/LTC1503-2 are switched capacitor step-down DC/DC converters that produce a regulated output from a 2.4V to 6V input. The parts use switched capacitor fractional conversion to achieve high efficiency over the entire input range. No inductors are required. Internal circuitry controls the step-down conversion ratio to optimize efficiency as the input voltage and load condi- tions vary. Typical efficiency is 25% higher than that of a low dropout (LDO) linear regulator. Regul