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