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Enpirion EN5337QI 3A Buck Converter with Integrated Inductor
Named to EDN "Hot 100 Products" 2009, Power CategoryThe Enpirion EN5337QI 3A voltage mode synchronous buck converter with integrated inductor is a power supply on a chip (PwrSoC) DC-DC converter. The EN5337QI delivers high-quality, ultra-compact, non-isolated DC-DC conversion through advanced circuit techniques and ultra high switching frequency. The Enpirion EN5337QI integrates MOSFET switches, all small-signal circuits, compensation, and the inductor in an advanced 4mm x 7mm QFN package. This Enpirion 3A buck converter features 92% peak efficiency and is specifically designed to meet the precise voltage and fast transient requirements of present and future high-performance, low-power processor, DSP, FPGA, memory boards, and system-level applications in distributed power architectures. |
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Features
- Integrated Inductor, MOSFETS, Controller
- Total Power Solution ≈ 75mm2
- Minimal external components.
- 3A Continuous Output Current Capability
- 5MHz operating frequency. Switching frequency can be phase locked to an external clock.
- High efficiency, up to 92%.
- Wide input voltage range of 2.375V to 5.5V.
- Output Enable pin and Power OK signal.
- Programmable soft-start time.
- Under Voltage Lockout, Over Current, Short Circuit and Thermal Protection.
- RoHS compliant, MSL level 3, 260C reflow.
| Benefits
- Tiny Footprint Setting a New Standard For Power Density
- Simple Layout, Easy Design
- Low Part Count
- Excellent Transient Response
Applications
- Point of load regulation for low-power processors, network processors, DSPs,
FPGAs, and ASICs
- Noise sensitive applications such as A/V, RF and Gbit I/O
- Low voltage, distributed power architectures with 2.5V, 3.3V, or 5V rails
- Computing, Networking, DSL, STB, DVR, DTV, iPC
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Typical Application Schematic
| Total Solution Footprint
(Not to scale)
Total Area = approx. 75mm²
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