LT3580EDD#TRPBF Power Path Management IC Switching Voltage Regulators 2A Boost/Inverting Switching Regulator
microchip battery management
,battery charge management ic
LT3580EDD#TRPBF Power Path Management IC Switching Voltage Regulators 2A Boost/Inverting Switching Regulator
FEATURES
n 2A Internal Power Switch
n Adjustable Switching Frequency
n Single Feedback Resistor Sets VOUT
n Synchronizable to External Clock
n High Gain SHDN Pin Accepts Slowly Varying Input Signals
n Wide Input Voltage Range: 2.5V to 32V
n Low VCESAT Switch: 300mV at 1.5A (Typical)
n Integrated Soft-Start Function
n Easily Configurable as a Boost or Inverting Converter n User Configurable Undervoltage Lockout (UVLO)
n Tiny 8-Lead 3mm × 3mm DFN and 8-Lead MSOP Packages
APPLICATIONS
n VFD Bias Supplies
n TFT-LCD Bias Supplies n GPS Receivers
n DSL Modems
n Local Power Supply
DESCRIPTION
The LT®3580 is a PWM DC/DC converter containing an internal 2A, 42V switch. The LT3580 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 LT3580 is ideal for many local power supply designs.
The LT3580 has an adjustable oscillator, set by a resistor from the RT pin to ground. Additionally, the LT3580 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 LT3580 also features innovative SHDN pin circuitry that allows for slowly varying input signals and an adjust- able undervoltage lockout function.
Additional features such as frequency foldback and soft-start are integrated. The LT3580 is available in tiny 3mm × 3mm 8-lead DFN and 8-lead MSOP packages.
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