EN6347QA Datasheet, PDF (1/25 Pages) Altera Corporation – Integrated Inductor

Enpirion^® Power Datasheet
EN6347QA 4A PowerSoC
Voltage Mode Synchronous
PWM Buck with Integrated Inductor
Description
The EN6347QA is a Power System on a Chip
(PowerSoC) DC-DC converter that is AEC-Q100
qualified for automotive applications. 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 EN6347QA 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
• -40°C to +105°C Ambient Temperature Range
• AEC-Q100 Qualified for Automotive Applications
• Up to 4A 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 (90mm²)
• 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
• Automotive Applications
• Point of Load Regulation for Low-Power, ASICs
Multi-Core and Communication Processors, DSPs,
FPGAs and Distributed Power Architectures
• High Efficiency 12V Intermediate Bus Architectures
• Beat Frequency/Noise Sensitive Applications
V_IN
560Ω
Optional
22µF
1206
X7R
EN6347QA
PVIN
VOUT
AVIN
R_A
PG
C_A
VFB
PGND PGND
SS
LLM/
AGND SYNC
R_B
C_SS
Figure 1. Simplified Applications Circuit
V_OUT
47µF
1210
X7R
Efficiency vs. Output Current
100
90
80
70
60
50
40
CONDITIONS
90mm²
30
V_IN = 5V
20
10
0
0.01
VOUT = 3.3V LLM
VOUT = 3.3V PWM
EN6347QA
4 mm x 7 mm
0.1
1
10
OUTPUT CURRENT (A)
Figure 2. Highest Efficiency in Smallest Solution Size
10318
June 26, 2015
www.altera.com/enpirion
Rev G