®
EL7586, EL7586A
Data Sheet
October 7, 2005
FN9210.1
TFT-LCD Power Supply
The EL7586 and EL7586A represent multiple output
regulators for use in all large panel, TFT-LCD applications.
Both feature a single boost converter with an integrated 2A
FET, two positive LDOs for V
ON
and V
LOGIC
generation,
and a single negative LDO for V
OFF
generation. The boost
converter can be programmed to operate in either P-mode
or PI-mode for improved load regulation.
Both EL7586 and EL7586A also integrate fault protection for
all four channels. Once a fault is detected, the device is
latched off until the input supply or EN is cycled. EL7586
also features an integrated start-up sequence for
V
BOOST
/V
LOGIC,
V
OFF
, then V
ON
or for V
LOGIC
, V
OFF
,
V
BOOST
, and V
ON
. The latter requires a single external
transistor. The timing of the start-up sequence is set using
an external capacitor.
EL7586A features an immediately-enabled V
LOGIC
output
which is independent of EN input. The V
LOGIC
output will be
switched off if a fault is detected and the power supply needs
to be recycled to reset this condition.
Both the EL7586 and EL7586A are pin-compatible, come in
the 20 Ld 4x4 QFN package, and are specified for operation
over the -40°C to +85°C temperature range.
Features
• 2A current limit FET options
• 3V to 5V input
• Up to 20V boost out
• 1% regulation on all outputs
• V
LOGIC
-V
OFF
-V
BOOST
-V
ON
or
V
BOOST
/V
LOGIC
-V
OFF
-V
ON
sequence control
- V
LOGIC
is on from start-up for EL7586A
• Programmable sequence delay
• Fully fault protected
• Thermal shutdown
• Internal soft-start
• 20 Ld 4x4 QFN packages
• Pb-free plus anneal available (RoHS compliant)
Applications
• LCD monitors (15”+)
• LCD-TV (up to 40”+)
• Notebook displays (up to 16”)
• Industrial/medical LCD displays
Ordering Information
PART
TAPE &
PART NUMBER MARKING REEL
EL7586ILZ
(Note)
EL7586ILZ-T7
(Note)
EL7586ILZ-T13
(Note)
EL7586AILZ
(Note)
EL7586AILZ-T7
(Note)
7586ILZ
7586ILZ
7586ILZ
7586AIL Z
7586AIL Z
-
7”
13”
-
7”
13”
PACKAGE
PKG.
DWG. #
Pinout
EL7586, EL7586A
(20 LD 4X4 QFN)
TOP VIEW
17 SGND
19 VDD
16 FBB
15 CINT
14 VREF
THERMAL
PAD
13 PGND
12 PGND
11 FBN
SGND 9
DRVN 10
FBP 6
DRVL 7
FBL 8
20 PG
18 EN
20 Ld 4x4 QFN MDP0046
(Pb-free)
20 Ld 4x4 QFN MDP0046
(Pb-free)
20 Ld 4x4 QFN MDP0046
(Pb-free)
20 Ld 4x4 QFN MDP0046
(Pb-free)
20 Ld 4x4 QFN MDP0046
(Pb-free)
20 Ld 4x4 QFN MDP0046
(Pb-free)
CDLY 1
DELB 2
LX1 3
LX2 4
DRVP 5
EL7586AILZ-T13 7586AIL Z
(Note)
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.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
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Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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