EL7583IREZ-T7 Converter TFT LCD Voltage Regulator IC 2 Output 20-HTSSOP
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 VON and VOFF 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 VON 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.
Features
• TFT-LCD display supply
- Boost regulator
- VON charge pump
- VOFF charge pump
• 2.7V to 14V VIN supply
• 5V < VBOOST < 17V
• 5V < VON < 40V
• -40V < VOFF < 0V
• VBOOST = 12V @ 470mA
• VBOOST = 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
• Small parts count
• Pb-free plus anneal available (RoHS compliant)
Applications
• TFT-LCD panels
• PDAs
Functional Block Diagram
specification of EL7583IREZ-T7
| Category | Integrated Circuits (ICs) Power Management (PMIC) Special Purpose Regulators |
| Mfr | Renesas Electronics America Inc |
| Series | |
| Product Status | |
| Applications | |
| Voltage - Input | |
| Number of Outputs | |
| Voltage - Output | |
| Operating Temperature | |
| Mounting Type | |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) Exposed Pad |
| Supplier Device Package | |
ORIGINAL
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