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EN5311QI

Description
Switching Voltage Regulators 1A BUCK CONVERTER INTEGRATED INDUCTOR
CategoryPower/power management    The power supply circuit   
File Size984KB,16 Pages
ManufacturerAltera (Intel)
Environmental Compliance
Related ProductsFound7parts with similar functions to EN5311QI
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EN5311QI Overview

Switching Voltage Regulators 1A BUCK CONVERTER INTEGRATED INDUCTOR

EN5311QI Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerAltera (Intel)
package instructionHQCCN, LCC20,.17X.21,25
Reach Compliance Codecompliant
ECCN codeEAR99
Samacsys DescriptionSwitching Voltage Regulators 1A BUCK CONVERTER INTEGRATED INDUCTOR
Other featuresOUTPUT VOLTAGE RANGE FROM 0.6 V TO 6 V
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
control modeVOLTAGE-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage6.6 V
Minimum input voltage2.4 V
Nominal input voltage3.6 V
JESD-30 codeR-XQCC-N20
JESD-609 codee3
length5 mm
Humidity sensitivity level3
Number of functions1
Number of terminals20
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output current1 A
Package body materialUNSPECIFIED
encapsulated codeHQCCN
Encapsulate equivalent codeLCC20,.17X.21,25
Package shapeRECTANGULAR
Package formCHIP CARRIER, HEAT SINK/SLUG
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height1.15 mm
surface mountYES
Switch configurationBUCK
Maximum switching frequency4000 kHz
Temperature levelINDUSTRIAL
Terminal surfaceMATTE TIN
Terminal formNO LEAD
Terminal pitch0.65 mm
Terminal locationQUAD
Maximum time at peak reflow temperature10
width4 mm
Base Number Matches1
Enpirion
®
Power Datasheet
EN5311QI 1A PowerSoC
Synchronous Buck Regulator
With Integrated Inductor
Featuring Integrated Inductor Technology
V
IN
Product Overview
The Ultra-Low-Profile EN5311QI is targeted to
applications where board area and profile are
critical. EN5311QI is a complete power
conversion solution requiring only two low cost
ceramic MLCC caps. Inductor, MOSFETS,
PWM, and compensation are integrated into a
tiny 5mm x 4mm x 1.1mm QFN package. The
EN5311QI is engineered to simplify design and
to minimize layout constraints.
4 MHz
switching frequency and internal type III
compensation provides superior transient
response.
With a 1.1 mm profile, the
EN5311QI is ideal for space and height
constrained applications.
A 3-pin VID output voltage selector provides
seven pre-programmed output voltages along
with an option for external resistor divider.
Output voltage can be programmed on-the-fly
to provide fast, dynamic voltage scaling.
UVLO
Thermal Limit
Current Limit
ENABLE
Soft Start
P-Drive
(-)
PWM
Comp
(+)
Logic
N-Drive
V
OUT
GND
Sawtooth
Generator
Compensation
Network
V
SENSE
(-)
Error
Amp
(+)
Switch
V
FB
DAC
VREF
Voltage
Select
Package Boundry
VS0 VS1 VS2
Product Highlights
Revolutionary Integrated Inductor
5mm x 4mm x1.1mm QFN package
Very small total solution foot print*
4 MHz switching frequency
Only two low cost MLCC caps required
Designed for low noise/low EMI
Very low ripple voltage; 5mV
p-p
Typical
High efficiency, up to 95%
Wide 2.4V to 6.6V input range
1000mA continuous output current
Less than 1
µA
standby current.
Excellent transient performance
3 Pin VID Output Voltage select
External divider: 0.6V to V
IN
-V
dropout
100% duty cycle capable
Short circuit and over current protection
UVLO and thermal protection
RoHS compliant; MSL 3 260°C reflow
Typical Application Circuit
V
IN
4.7µF
ENABLE VSENSE
VIN
VOUT
C
OUT
V
OUT
EN5311QI
VS0
VS1
VS2
VFB
GND
VOLTAGE
SELECT
Figure 1. Typical application circuit.
Applications
Area constrained applications
Noise Sensitive Applications such as A/V
and RF
LDO replacement for improved thermals
Set top box/home gateway
Smart phones, PDAs
VoIP and Video phones
Personal Media Players
1
03799
December 14, 2015
www.altera.com/enpirion
Rev G

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