EL7586A数据手册集成电路（IC）的特殊用途稳压器规格书PDF

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)

应用 Application

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