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 VON and VLOGIC generation,
and a single negative LDO for VOFF 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
VBOOST/VLOGIC, VOFF, then VON or for VLOGIC, VOFF,
VBOOST, and VON. 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 VLOGIC output
which is independent of EN input. The VLOGIC 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
• VLOGIC-VOFF-VBOOST-VON or
VBOOST/VLOGIC-VOFF-VON sequence control
- VLOGIC 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