The LT3580MPMS8E/HMS8E/IMS8E/EMS8E is a PWM DC/DC converter containing an internal 2A, 42V switch. The LT3580MPMS8E/HMS8E/IMS8E/EMS8E can be configured as either a boost, SEPIC or inverting converter. Capable of generating 12V at 550mA or –12V at 350mA from a 5V input, the LT3580MPMS8E/HMS8E/IMS8E/EMS8E is ideal for many local power supply designs.
The LT3580MPMS8E/HMS8E/IMS8E/EMS8E has an adjustable oscillator, set by a resistor from the RT pin to ground. Additionally, the LT3580MPMS8E/HMS8E/IMS8E/EMS8E can be synchronized to an external clock. The free running or synchronized switching frequency range of the part can be set between 200kHz and 2.5MHz.
The LT3580MPMS8E/HMS8E/IMS8E/EMS8E 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 LT3580MPMS8E/HMS8E/IMS8E/EMS8E is available in tiny 3mm × 3mm 8-lead DFN and 8-lead MSOP packages.
Feature
- 2A Internal 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: 2.5V to 32V
- Low VCESAT Switch: 300mV at 1.5A (Typical)
- Integrated Soft-Start Function
- Easily Configurable as a Boost or Inverting Converter
- User Configurable Undervoltage Lockout (UVLO)
- Tiny 8-Lead 3mm × 3mm DFN and 8-Lead MSOP Packages
Applications
- VFD Bias Supplies
- TFT-LCD Bias Supplies
- GPS Receivers
- DSL Modems
- Local Power Supply
(Picture: Pinout)
