EN6337QI Datasheet, PDF (1/23 Pages) Enpirion, Inc. – 3A Voltage Mode Synchronous Buck PWM DC-DC Converter with Integrated Inductor

Enpirion^® Power Datasheet
EN6337QI 3A PowerSoC
Voltage Mode Synchronous
PWM Buck with Integrated Inductor
Description
The EN6337QI is a Power System on a Chip
(PowerSoC) DC-DC converter. It integrates MOSFET
switches, small-signal circuits, compensation, and the
inductor in an advanced 4mm x 7mm x 1.85mm 38-
pin QFN package.
The EN6337QI 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 architecture.
The device’s advanced circuit techniques, ultra high
switching frequency, and proprietary integrated
inductor technology deliver high-quality, ultra
compact, non-isolated DC-DC conversion.
The Altera Enpirion power solution significantly helps
in system design and productivity by offering greatly
simplified board design, layout and manufacturing
requirements. In addition, a reduction in the number
of vendors required for the complete power solution
helps to enable an overall system cost savings.
All Enpirion products are RoHS compliant and lead-
free manufacturing environment compatible.
Features
• Integrated Inductor, MOSFETs, Controller
• Up to 3A Continuous Operating Current
• High Efficiency (Up to 95%)
• Frequency Synchronization to External Clock
• Input Voltage Range (2.5V to 6.6V)
• Programmable Light Load Mode
• Optimized Total Solution Size (75mm²)
• Output Enable Pin and Power OK
• Programmable Soft-Start
• Thermal Shutdown, Over-Current, Short Circuit,
and Under-Voltage Protection
• RoHS Compliant, MSL Level 3, 260°C Reflow
Applications
• Point of Load Regulation for Low-Power, ASICs
Multi-Core and Communication Processors, DSPs,
FPGAs and Distributed Power Architectures
• Blade Servers, RAID Storage and LAN/SAN
Adapter Cards, Wireless Base Stations, Industrial
Automation, Test and Measurement, Embedded
Computing, and Printers
• High Efficiency 12V Intermediate Bus Architectures
• Beat Frequency/Noise Sensitive Applications
V_IN
22µF
1206
C_SS
EN6337QI
PVIN
ENABLE
AVIN
VOUT
VFB
PGND PGND
SS
LLM/
AGND SYNC
V_OUT
R_A
C_A
47µF
1206
R_B
Figure 1. Simplified Applications Circuit
Efficiency vs. Output Current
100
90
80
LLM
70
60
PWM
50
Actual Solution Size
75mm²
40
30
20
VOUT = 2.5V LLM
CONDITIONS
10
VOUT = 2.5V PWM
V_IN = 3.3V
0
0.01
0.1
1
10
OUTPUT CURRENT (A)
Figure 2. Highest Efficiency in Smallest Solution Size
05800
June 26, 2015
www.altera.com/enpirion
Rev E