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EL7566DREZ-T7

P1-P3P4-P6P7-P9P10-P12P13-P14
1
®
FN7102.7
EL7566
Monolithic 6A 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 (V
IN
). 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 V
IN
. 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.
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 in
2
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 Ld HTSSOP package
• Pb-free plus anneal 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
Data Sheet
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2004, 2006. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
May 8, 2006
2
FN7102.7
May 8, 2006
Typical Application Diagram
Ordering Information
PART NUMBER PART MARKING TAPE & REEL TEMP RANGE (°C) PACKAGE PKG. DWG. #
EL7566DRE 7566DRE - 0 to 85 28 Ld HTSSOP MDP0048
EL7566DRE-T7 7566DRE 7” 0 to 85 28 Ld HTSSOP MDP0048
EL7566DRE-T13 7566DRE 13” 0 to 85 28 Ld HTSSOP MDP0048
EL7566DREZ (Note) 7566DREZ - 0 to 85 28 Ld HTSSOP (Pb-free) MDP0048
EL7566DREZ-T7 (Note) 7566DREZ 7” 0 to 85 28 Ld HTSSOP (Pb-free) MDP0048
EL7566DREZ-T13 (Note) 7566DREZ 13” 0 to 85 28 Ld HTSSOP (Pb-free) MDP0048
EL7566AIREZ (Note) 7566AIREZ -40 to 85 28 Ld HTSSOP (Pb-free) MDP0048
EL7566AIREZ-T7 (Note) 7566AIREZ 7” -40 to 85 28 Ld HTSSOP (Pb-free) MDP0048
EL7566AIREZ-T13 (Note) 7566AIREZ 13” -40 to 85 28 Ld HTSSOP (Pb-free) MDP0048
NOTE: Intersil Pb-free plus anneal 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-020.
8200pF
0.047µF
2.7µH
150µF
V
OUT
(2.5V, 6A)
100µF
V
IN
(3V TO
6V)
0.22µF
270pF
COMP
VREF
FB
VO
VTJ
TM
SEL
LX
LX
LX
LX
LX
LX
NC
SGND
COSC
STN
STP
EN
PG
VDD
VIN
VIN
VIN
PGND
PGND
PGND
NC
1
2
3
4
28
27
26
25
5
6
7
24
23
22
8 21
9
10
20
19
11
12
13
18
17
16
14 15
R
2
R
1
10K
10K
21.5K
C
C
R
C
EL7566
3
FN7102.7
May 8, 2006
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typ values are for information purposes only. Unless otherwise noted, all tests are
at the specified temperature and are pulsed tests, therefore: T
J
= T
C
= T
A
Absolute Maximum Ratings (T
A
= 25°C)
V
IN
, V
DD
to SGND. . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V
VX to PGND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to V
IN
+0.3V
SGND to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +0.3V
COMP, V
REF
, FB, V
O
, V
TJ
, TM,
SEL, PG, EN, STP, STN, C
OSC
to SGND . . . . . -0.3V to V
DD
+0.3V
Storage Temperature. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +125°C
Operating Ambient Temperature DRE. . . . . . . . . . . . . 0°C to +85°C
Operating Ambient Temperatute AIRE . . . . . . . . . . .-40°C to +85°C
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
DC Electrical Specifications V
DD
= V
IN
= 3.3V, T
A
= T
J
= 25°C, C
OSC
= 390pF, Unless Otherwise Specified
PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT
V
IN
Input Voltage Range 3 6 V
V
REF
Reference Accuracy 1.24 1.26 1.28 V
V
REFTC
Reference Temperature Coefficient 50 ppm/°C
V
REFLOAD
Reference Load Regulation 0 < I
REF
< 50µA -1 %
V
RAMP
Oscillator Ramp Amplitude 1.15 V
I
OSC_CHG
Oscillator Charge Current 0.1V < V
OSC
< 1.25V 200 µA
I
OSC_DIS
Oscillator Discharge Current 0.1V < V
OSC
< 1.25V 8 mA
I
VDD
V
DD
Supply Current V
EN
= 1 (L disconnected) 2 2.7 5 mA
I
VDD_OFF
V
DD
Standby Current EN = 0 1 1.5 mA
V
DD_OFF
V
DD
for Shutdown 2.4 2.65 V
V
DD_ON
V
DD
for Startup 2.6 2.95 V
T
OT
Over-temperature Threshold 135 °C
T
HYS
Over-temperature Hysteresis 20 °C
I
LEAK
Internal FET Leakage Current EN = 0, L
X
= 6V (low FET), L
X
= 0V (high FET) 10 µA
I
LMAX
Peak Current Limit 7.8 A
R
DSON1
PMOS On Resistance 29 50 mΩ
R
DSONTC2
NMOS On Resistance 25 mΩ
R
DSONTC
R
DSON
Tempco 0.2 mΩ/°C
I
STP
STP Pin Input Pull-down Current V
STP
= V
IN
/2 -4 2.5 µA
I
STN
STN Pin Input Pull-up Current V
STN
= V
IN
/2 2.5 4 µA
V
PGP
Positive Power Good Threshold With respect to target output voltage 6 14 %
V
PGN
Negative Power Good Threshold With respect to target output voltage -14 -6 %
V
PG_HI
Power Good Drive High I
PG
= 1mA 2.6 V
V
PG_LO
Power Good Drive Low I
PG
= -1mA 0.5 V
V
OVP
Output Overvoltage Protection 10 %
V
FB
Output Initial Accuracy I
LOAD
= 0A 0.79 0.8 0.81 V
V
FB_LINE
Output Line Regulation V
IN
= 3.3V, ΔV
IN
= 10%, I
LOAD
= 0A 0.2 0.5 %
GM
EA
Error Amplifier Transconductance V
CC
= 0.65V 85 125 165 µs
V
FB_TC
Output Temperature Stability 0°C < T
A
< 85°C, I
LOAD
= 3A ±1 %
F
S
Switching Frequency 300 370 440 kHz
I
FB
Feedback Input Pull-up Current V
FB
= 0V 100 200 nA
EL7566
P1-P3P4-P6P7-P9P10-P12P13-P14

EL7566DREZ-T7

Mfr. #:
Buy EL7566DREZ-T7
Manufacturer:
Renesas / Intersil
Description:
Switching Voltage Regulators EL7566DREZ 6 AMP DC: DC STP DWNG
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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