Enpirion Power Datasheet ER3110DI Wide PVIN 1A Synchronous Buck Regulator ER3110DI Datasheet The ER3110DI is a 1A synchronous buck regulator Features with an input range of 3V to 36V. It provides an easy to Wide input voltage range 3V to 36V use, high efficiency low BOM count solution for a variety of applications. Synchronous operation for high efficiency The ER3110DI integrates both high-side and low-side NMOS No compensation required FETs and features a PFM mode for improved efficiency at Integrated high-side and low-side NMOS devices light loads. This feature can be disabled if a forced PWM mode is desired. The part switches at a default frequency of Selectable PFM or forced PWM mode at light loads 500kHz but may also be programmed using an external Internal fixed (500kHz) or adjustable switching resistor from 300kHz to 2MHz. The ER3110DI has the ability frequency 300kHz to 2MHz to utilize internal or external compensation. By integrating both NMOS devices and providing internal configuration Continuous output current up to 1A options, minimal external components are required, reducing Internal or external soft-start BOM count and complexity of design. Minimal external components required With the wide V range and reduced BOM, the part PVIN provides an easy to implement design solution for a variety Power-good and enable functions available of applications while giving superior performance. It will provide a very robust design for high voltage industrial Applications applications as well as an efficient solution for battery FPGA Applications powered applications. Industrial control The part is available in a small Pb-free 4mmx3mm DFN plastic package with a full-range industrial temperature of Medical devices -40C to +125C. Portable instrumentation Distributed power supplies Cloud infrastructure 100 V = 5V PVIN 95 V = 12V 90 PVIN 1 12 85 SS FSW V = 15V PVIN 2 11 80 COMP SYNC R2 CFB 10 3 75 BOOT FB C BOOT GND 9 100nF R3 4 70 PVIN C AVINO AVINO C AVINO V = 24V V = 33V 10F PVIN PVIN 5 1F V 65 OUT SW POK C OUT L1 6 60 22H 10F PGND EN 55 50 INTERNAL DEFAULT PARAMETER SELECTION 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 OUTPUT LOAD (A) FIGURE 1. TYPICAL APPLICATION FIGURE 2. EFFICIENCY vs LOAD, PFM, V = 3.3V OUT 2014 Altera Corporation. All rights reserved. ALTERA, ARRIA, CYCLONE, ENPIRION, HARDCOPY, MAX, MEGACORE, NIOS, QUARTUS and STRATIX words and logos are trademarks of Altera Corporation and registered in the U.S. Patent and Trademark Office and in other countries. All other words and logos identified as trademarks or service marks are the property of ISO their respective holders as described at www.altera.com/common/legal.html. Altera warrants performance of its semiconductor 9001:2008 products to current specifications in accordance with Altera s standard warranty, but reserves the right to make changes to any 101 Innovation Drive Registered products and services at any time without notice. Altera assumes no responsibility or liability arising out of the application or use San Jose, CA 95134 of any information, product, or service described herein except as expressly agreed to in writing by Altera. Altera customers are advised to obtain the latest version of device specifications before relying on any published information and before placing orders www.altera.com for products or services. May 2014 Altera Corporation Subscribe 10038 May 28, 2014 Rev A EFFICIENCY (%)Page 2 Ordering Information PART NUMBER PART TEMP. RANGE PACKAGE PKG. (Notes 1, 2) MARKING (C) (Pb-Free) DWG. ER3110DI 3110 -40 to +125 12 Ld DFN L12.4x3 NOTES: 1. Add T suffix for Tape and Reel. Please refer to Packing and Marking Information: www.altera.com/support/reliability/packing/rel-packing- and-marking.html 2. These Altera Enpirion Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS3333 compliant and compatible with both SnPb and Pb-free soldering operations). Altera Enpirion Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. Enpirion Power Datasheet ER3110DI Wide PVIN 1A Synchronous Buck Regulator May 2014 Altera Corporation 10038 May 28, 2014 Rev A