EL7515: High Frequency PWM Step-Up Regulator

The EL7515 is a high frequency, high efficiency step-up DC/DC regulator operated at fixed frequency PWM mode. With an integrated 1.4A MOSFET, it can deliver up to 600mA output current at up to 92% efficiency. The adjustable switching frequency is up to 1.2MHz, making it ideal for DSL applications.

When shut down, it draws <1µA of current. This feature, along with the minimum starting voltage of 1.8V, makes it suitable for portable equipment powered by one Lithium Ion, 3 to 4 NiMH cells, or 2 cells of alkaline battery.

The EL7515 is available in a 10 Ld MSOP package, with maximum height of 1.1mm. With proper external components, the whole converter takes less than 0.25in2 PCB space.

This device is specified for operation over the full -40°C to +85°C temperature range.

Key Features
  • Up to 92% efficiency
  • Up to 600mA IOUT
  • 4.5V < VOUT < 17V
  • 1.8V < VIN < 13.2V
  • Up to 1.2MHz adjustable frequency
  • <1µA shutdown current
  • Adjustable soft-start
  • Low battery detection
  • Internal thermal protection
  • 1.1mm max height 10 Ld MSOP package
  • Pb-Free available (RoHS compliant)
Applications
  • 3V to 5V and 12V converters
  • 5V to 12V converters
  • TFT-LCD
  • DSL
  • Portable equipment
  • Desktop equipment
Typical Diagram
Application Notes
TitleTypeUpdatedSizeOther Languages
AN1317: Single-Stage 5V USB Voltage RegulatorPDF13 Nov 201477 KB
AN1256: Boost Converter Generates 5V at 375mA from Wide Range Negative Input SupplyPDF13 Nov 201460 KB
AN1254: A Novel Approach to Creating a High-Efficiency, Simple Buck-Boost ConverterPDF13 Nov 201476 KB
AN1108: Applying Power MOSFET DriversPDF13 Nov 2014112 KB
AN1101: Designing a High Efficiency DC-DC Converter with the EL75xxPDF13 Nov 2014292 KB
AN1096: EL75XX Thermal Design ConsiderationsPDF13 Nov 2014191 KB
Datasheets
TitleTypeUpdatedSizeOther Languages
EL7515 DatasheetPDF10 Jul 2015231 KB
Tech Briefs
TitleTypeUpdatedSizeOther Languages
TB429: Using the EL7515 Demo BoardPDF19 Nov 2014338 KB
Order Information
Part NumberPackage TypeWeight(g)PinsMSL RatingPeak Temp (°C)RoHS Status
EL7515IYZ10 Ld MSOP0.026102260RoHS
EL7515IY-T710 Ld MSOP T+R0.02610240
EL7515IYZ-T1310 Ld MSOP T+R0.026102260RoHS
EL7515IYZ-T710 Ld MSOP T+R0.026102260RoHS
EL7515IY10 Ld MSOP0.02610240
EL7515IY-T1310 Ld MSOP T+R0.02610240
EL7515IY-EVALN/A
Datasheet
EL7515 Datasheet 10 Jul 2015
Other
AN1096: EL75XX Thermal Design Considerations 13 Nov 2014
AN1101: Designing a High Efficiency DC-DC Converter with the EL75xx 13 Nov 2014
AN1108: Applying Power MOSFET Drivers 13 Nov 2014
AN1254: A Novel Approach to Creating a High-Efficiency, Simple Buck-Boost Converter 13 Nov 2014
AN1256: Boost Converter Generates 5V at 375mA from Wide Range Negative Input Supply 13 Nov 2014
AN1317: Single-Stage 5V USB Voltage Regulator 13 Nov 2014
EL7515
10 Ld MSOP T+R EL7515
TB429: Using the EL7515 Demo Board 19 Nov 2014