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EC7100VQI Datasheet(PDF) 1 Page - Altera Corporation |
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EC7100VQI Datasheet(HTML) 1 Page - Altera Corporation |
1 / 21 page March 2014 Altera Corporation DS-1043 Datasheet © 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 their respective holders as described at www.altera.com/common/legal.html. Altera warrants performance of its semiconductor products to current specifications in accordance with Altera's standard warranty, but reserves the right to make changes to any products and services at any time without notice. Altera assumes no responsibility or liability arising out of the application or use 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 for products or services. 101 Innovation Drive San Jose, CA 95134 www.altera.com Subscribe ISO 9001:2008 Registered Enpirion® Power Datasheet EC7100VQI PWM DC/DC Controller with VS Inputs for FPGA Power Regulator The Altera® Enpirion® EC7100VQI is a Single-Phase Synchronous-Buck PWM controller. The wide 3.3V to 25V input voltage range is ideal for systems that run on battery or AC- adapter power sources. The EC7100VQI is a low-cost solution for applications requiring dynamically selected slew-rate controlled output voltages. The soft-start and dynamic setpoint slew-rates are capacitor programmed. Voltage identification logic-inputs select four resistor-programmed setpoint reference voltages that directly set the output voltage of the converter between 0.5V and 1.5V, and up to 5V with a feedback voltage divider. The EC7100VQI modulator has equivalent light-load efficiency, faster transient performance, accurately regulated frequency control and all internal compensation. These updates, together with integrated MOSFET drivers and schottky bootstrap diode, allow for a high-performance regulator that is highly compact and needs few external components. The EC7100VQI has differential remote sensing for output voltage and selectable switching frequency. For maximum efficiency, the converter automatically enters diode-emulation mode (DEM) during light-load conditions such as system standby. Features • Input Voltage Range: 3.3V to 25V • Output Voltage Range: 0.5V to 5V • Precision Regulation - Frequency Control Loop - ±0.5% System Accuracy Over -10°C to +100°C • Optimal Transient Response • Output Remote Sense • Extremely Flexible Output Voltage Programmability - 2-Bit VS Selects Four Independent Setpoint Voltages - Simple Resistor Programming of Setpoint Voltages • Selectable 300kHz, 500kHz, 600kHz or 1MHz PWM Frequency in Continuous Conduction • Automatic Diode Emulation Mode for Highest Efficiency • Power-OK Monitor for Soft-Start and Fault Detection Applications • FPGA power • Digital processor power • Mixed-signal ASIC power FIGURE 1. EC7100VQI APPLICATION SCHEMATIC WITH FOUR OUTPUT VOLTAGE SETPOINTS AND DCR CURRENT SENSE BOOT UGATE SW EN POK FSW NSNS VS1 VS0 SREF SET0 SET1 LO CBOOT CSEN QHS QLS 3.3V TO 25V 0.5V TO 5V RO CO CIN VIN VOUT CAVIN2 +5V RAVIN2 CAVIN1 GPIO 1 2 3 4 5 6 15 14 13 12 11 16 RSET1 RSET3 RFB NSNS1 RFB1 NSNS1 GND 0 09613 March 14, 2014 Rev A |
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