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Intersil Electronic Components Datasheet

EL7566 Datasheet

Monolithic 6 Amp DC-DC Step-Down Regulator

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®
Data Sheet
December 1, 2004
EL7566
FN7102.5
Monolithic 6 Amp DC-DC Step-Down
Regulator
The EL7566 is a full-feature synchronous step-down regulator
capable of up to 6A and 96% efficiency. The device operates
from 3V to 6V input supply (VIN). With internal CMOS power
FETs, the device can operate at up to 100% duty ratio,
allowing for an output voltage range of 0.8V to nearly VIN. An
adjustable switching frequency up to 1MHz enables the use of
small components, thereby reducing board area consumption
to under 0.72sq-in on one side of a PCB. The EL7566
operates in constant frequency PWM mode, making external
synchronization possible. A soft-start feature is integrated in
the EL7566 to limit in-rush currents and allow for a smooth
voltage ramp from zero to regulation. Other start-up features
are integrated to add flexibility for synchronizing many
supplies in multiple configurations. The EL7566 also offers a
voltage margining capability that shifts the output voltage ±5%
for validation of system card performance and reliability during
manufacturing tests. A junction temperature indicator
conveniently monitors the silicon die temperature, saving time
in thermal characterization.
An easy-to-use simulation tool is available for download and
can be used to modify design parameters such as switching
frequency, voltage ripple, ambient temperature, as well as
view schematics waveforms, efficiency graphs, and
complete BOM with Gerber layout.
Ordering Information
PART
NUMBER
PACKAGE
TAPE & PKG.
REEL DWG. #
EL7566DRE
28-HTSSOP
- MDP0048
EL7566DRE-T7
28-HTSSOP
7” MDP0048
EL7566DRE-T13
28-HTSSOP
13” MDP0048
EL7566DREZ (Note) 28-HTSSOP (Pb-free) - MDP0048
EL7566DREZ-T7 (Note) 28-HTSSOP (Pb-free) 7” MDP0048
EL7566DREZ-T13 (Note) 28-HTSSOP (Pb-free) 13” MDP0048
EL7566AIREZ (Note) 28-HTSSOP (Pb-free)
-40°C to 85°C
MDP0048
EL7566AIREZ-T7 (Note) 28-HTSSP (Pb-free)
-40°C to 85°C
7” MDP0048
EL7566AIREZ-T13
(Note)
28-HTSSOP (Pb-free) 13” MDP0048
-40°C to 85°C
NOTE: Intersil Pb-free products employ special Pb-free material sets;
molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with both
SnPb and Pb-free soldering operations. Intersil Pb-free products are
MSL classified at Pb-free peak reflow temperatures that meet or
exceed the Pb-free requirements of IPC/JEDEC J STD-020C.
Features
• Integrated MOSFETs
• 6A continuous output current
• Up to 96% efficiency
• Multiple supply start-up tracking
• Built-in ±5% voltage margining
• 3V to 6V input voltage
• 0.72 in2 footprint with components on one side of PCB
• Adjustable switching frequency to 1MHz
• Oscillator synchronization possible
• 100% duty ratio
• Junction temperature indicator
• Over-temperature protection
• Internal soft-start
• Variable output voltage down to 0.8V
• Power-good indicator
• 28-pin HTSSOP package
• Pb-Free Available (RoHS Compliant)
Applications
• Point-of-regulation power supplies
• FPGA Core and I/O supplies
• DSP, CPU Core, and IO supplies
• Logic/Bus supplies
• Portable equipment
Related Documentation
• Technical Brief 415 - Using the EL7566 Demo Board
• Easy-to-use applications software simulation tool available
at www.intersil.com/dc-dc
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2004. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.


Intersil Electronic Components Datasheet

EL7566 Datasheet

Monolithic 6 Amp DC-DC Step-Down Regulator

No Preview Available !

EL7566
Typical Application Diagram
R2
10K
R1
21.5K
VOUT
(2.5V, 6A)
150µF
CC RC
8200pF 10K
0.047µF
1 COMP
2 VREF
SGND 28
COSC 27
270pF
3 FB
STN 26
4 VO
5 VTJ
STP 25
EN 24
0.22µF
6 TM
PG 23
2.7µH
7 SEL
8 LX
9 LX
10 LX
VDD 22
VIN 21
VIN 20
VIN 19
VIN
(3V TO
6V)
100µF
11 LX
PGND 18
12 LX
PGND 17
13 LX
PGND 16
14 NC
NC 15
2 FN7102.5
December 1, 2004


Part Number EL7566
Description Monolithic 6 Amp DC-DC Step-Down Regulator
Maker Intersil Corporation
Total Page 14 Pages
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