EL7583

EL7583 Manufacturer

EL7583 Description

EL7583 Description

EL7583 Categories

EL7583 Datasheet (PDF)

EL7583 Price & Availability

EL7583 Features

EL7583 Features

• TFT-LCD display supply
  • Boost regulator
  • V_ONcharge pump
  • V_OFFcharge pump
• 2.7V to 14V V_INsupply
• 5V BOOST
• 5V ON
• -40V OFF
• V_BOOST= 12V @ 470mA
• V_BOOST= 15V @ 370mA
• High frequency, small inductor DC-DC boost circuit
• Over 90% efficient DC-DC boost converter capability
• Adjustable frequency
• Adjustable soft-start
• Adjustable outputs

EL7583 Description

The EL7583 is a 3-channel DC/DC converter IC which is designed primarily for use in TFT-LCD applications. It features a PWM boost converter with 2.7V to 14V input capability and 5V to 17V output, which powers the column drivers and provides up to 470mA @ 12V, 370mA @ 15V from 5V supply. A pair of charge pump control circuits provide regulated outputs of V_ON and V_OFF supplies at 8V to 40V and -5V to -40V, respectively, each at up to 60mA.

The EL7583 features adjustable switching frequency, adjustable soft start, and a separate output V_ON enable control to allow selection of supply start-up sequence. An over-temperature feature is provided to allow the IC to be automatically protected from excessive power dissipation.

The EL7583 is available in a standard 20 Ld TSSOP package and the Pb-free 20 Ld HTSSOP package. Both are specified for operation over the full -40°C to +85°C temperature range.

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