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EN2342QI Datasheet(PDF) 1 Page - Altera Corporation |
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EN2342QI Datasheet(HTML) 1 Page - Altera Corporation |
1 / 23 page Enpirion ® Power Datasheet EN2342QI 4A PowerSoC Voltage Mode Synchronous PWM Buck with Integrated Inductor www.altera.com/enpirion Description The EN2342QI is a Power System on a Chip (PowerSoC) DC-DC converter. It integrates MOSFET switches, small-signal control circuits, compensation and an integrated inductor in an advanced 8x11x3mm QFN module. It offers high efficiency, excellent line and load regulation over temperature and up to the full 4A load range. The EN2342QI operates over a wide input voltage range and is specifically designed to meet the precise voltage and fast transient requirements of high-performance products. The EN2342 features frequency synchronization to an external clock, power OK output voltage monitor, programmable soft-start along with thermal and over current protection. The device’s advanced circuit design, ultra high switching frequency and proprietary integrated inductor technology delivers high-quality, ultra compact, non-isolated DC-DC conversion. The Altera Enpirion solution significantly helps in system design and productivity by offering greatly simplified board design, layout and manufacturing requirements. In addition, overall system level reliability is improved given the small number of components required with the Altera Enpirion solution. All Altera Enpirion products are RoHS compliant, halogen free and are compatible with lead-free manufacturing environments. Features • Integrated Inductor, MOSFETs, Controller • Wide Input Voltage Range: 4.5V – 14V • Guaranteed 4A IOUT at 85°C with No Airflow • Frequency Synchronization (External Clock) • 1% Initial VOUT Accuracy • High Efficiency (Up to 95%) • Output Enable Pin and Power OK signal • Programmable Soft-Start Time • Pin Compatible with the EN2340/60/62QI • Under Voltage Lockout Protection (UVLO) • Thermal Soft-Shutdown Protection • Over Current and Short Circuit Protection • RoHS Compliant, MSL Level 3, 260 oC Reflow Applications • Space Constrained Applications • Distributed Power Architectures • Output Voltage Ripple Sensitive Applications • Beat Frequency Sensitive Applications • Servers, Embedded Computing Systems, LAN/SAN Adapter Cards, RAID Storage Systems, Industrial Automation, Test and Measurement, and Telecommunications Figure 1. Simplified Application Circuit Figure 2. Highest Efficiency in Smallest Solution Size VOUT VIN 22 F 1206 VOUT ENABLE AGND PVIN AVIN PGND PGND 47nF VFB R A RB R CA C A RCLX C OUT AVINO PG BTMP EN2342QI SS VDDB BGND FQADJ R VB 4.75k F 0.22 F 22nF RFS RCLX F OFF ON 09520 February 21, 2014 Rev A |
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