The LT8580HMS8E#PBF is a PWM DC/DC converter containing an internal 1A, 65V switch. The LT8580HMS8E#PBF can be configured as either a boost, SEPIC or inverting converter.
The LT8580HMS8E#PBF has an adjustable oscillator, set by a resistor from the RT pin to ground. Additionally, the LT8580HMS8E#PBF can be synchronized to an external clock. The switching frequency of the part may be free running or synchronized, and can be set between 200kHz and 1.5MHz.
The LT8580HMS8E#PBF also features innovative SHDN pin circuitry that allows for slowly varying input signals and an adjustable undervoltage lockout function.
Additional features such as frequency foldback and soft-start are integrated. The LT8580HMS8E#PBF is available in tiny thermally enhanced 3mm × 3mm 8-lead DFN and 8-lead MSOP packages.
Feature
- 1A, 65V Power Switch
- Adjustable Switching Frequency
- Single Feedback Resistor Sets VOUT
- Synchronizable to External Clock
- High Gain SHDN Pin Accepts Slowly Varying Input Signals
- Wide Input Voltage Range: 2.55V to 40V
- Low VCESAT Switch: 400mV at 0.75A (Typical)
- Integrated Soft-Start Function
- Easily Configurable as a Boost, SEPIC, or Inverting Converter
- User Configurable Undervoltage Lockout (UVLO)
- Pin Compatible with LT3580
- Tiny Thermally Enhanced 8-Lead 3mm × 3mm DFN and 8-Lead MSOP Packages
- AEC-Q100 Qualification in Progress
Applications
- VFD Bias Supplies
- TFT-LCD Bias Supplies
- DPS Receivers
- DSL Modems
- Local Power Supply
