EN6310QA Datasheet, PDF (1/23 Pages) Altera Corporation – Integrated Inductor

Enpirion^® Power Datasheet
EN6310QA 1A PowerSoC
Voltage Mode Synchronous
PWM Buck with Integrated Inductor
Description
The EN6310QA is a member of Altera Enpirion’s high
efficiency EN6300 family of PowerSoCs. The
EN6310QA is a 1A PowerSoC that is AEC-Q100
qualified for automotive applications.
The EN6310QA employs Altera Enpirion’s EDMOS
MOSFET technology for monolithic integration and
very low switching loss. The device switches at
2.2MHz in fixed PWM operation to eliminate the low
frequency noise that is created by pulse frequency
modulation operating modes. The MOSFET ratios are
optimized to offer high conversion efficiency for lower
VOUT settings.
Output voltage settings are programmable via a
simple resistor divider circuit. Output voltage can be
programmed from as low as 0.6V to 3.3V. The device
has a programmable soft-start ramp rate to
accommodate sequencing and to prevent un-wanted
current inrush at start up. A Power OK (POK) flag is
provided to indicate a fault condition.
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 Altera Enpirion products are RoHS compliant and
lead-free manufacturing environment compatible.
Features
 Integrated inductor, MOSFET and Controller
 -40°C to 105°C Ambient Temperature Range
 AEC-Q100 Qualified for Automotive Applications
 Small 4mm x 5mm x 1.85mm QFN
 High Efficiency up to 96%
 Solution Footprint Less than 65mm²
 1A Continuous Output Current
 VIN Range of 2.7V to 5.5V
 VOUT Range from 0.6V to 3.3V
 Programmable Soft Start and Power OK Flag
 Fast Transient Response and Recovery Time
 Low Noise and Low Output Ripple; 4mV Typical
 2.2MHz Switching Frequency
 Under Voltage Lock-out (UVLO), Short Circuit, Over
Current and Thermal Protection
Applications
 Automotive Applications
 Altera FPGAs (MAX, ARRIA, CYCLONE, STRATIX)
 Low Power FPGA Applications
 Noise Sensitive Wireless and RF Applications
V_IN
CIN2
4.7F
0603
X7R
CIN1
RAVIN
20Ω
100pF
ON
OFF
CAVIN
0.47F
CSS
10nF
PVIN
VOUT
EN6310QA
ENABLE
AVIN
VFB
SS
PGND
AGND
PGND
V_OUT
COUT
2x22µF
1206 R_A
CA
X7R
RCA
RB
Figure 1. Simplified Applications Circuit
Efficiency vs. Output Current
100
95
90
85
80
75
70
VOUT = 2.5V
CONDITIONS
65
VOUT = 1.0V
V_IN = 3.3V
60
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
OUTPUT CURRENT (A)
Figure 2. Highest Efficiency in Smallest Solution Size
10406
March 4, 2016
www.altera.com/enpirion
Rev D