描述 Description

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.

特性 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)

應(yīng)用 Application

? LCD monitors (15\"+)
? LCD-TV (up to 40\"+)
? Notebook displays (up to 16\")
? Industrial/medical LCD displays