
Linear Technology
DESCRIPTION
The LT®8471 is a dual PWM DC/DC converter containing two internal 2A, 50V switches and an additional 500mA switch to facilitate step-down and inverting conversion. Each 2A channel can be independently configured as a buck, boost, SEPIC, flyback or inverting converter. Capable of generating positive and negative outputs from a single input rail, the LT8471 is ideal for many local power supply designs.
FEATURES
■ Dual 2A and One 500mA, 50V Internal Power
Switch Channels
■ 2A Primary Channels Can Be Buck, Boost, SEPIC,
ZETA, Flyback or Inverting DC/DC Converter
■ 500mA Skyhook Channel Efficiently Generates
Boosted Input Voltage
■ Wide Input Voltage Range of 2.6V to 50V
■ UVLO and OVLO Programmable on OV/UV Pin
■ Soft-Start Programmable for Each Channel
■ Fixed Frequency PWM (Set by RT Pin or
Synchronized to External Clock)
■ Anti-Phase Switching Reduces Input Ripple
■ 20-Lead TSSOP Package
APPLICATIONS
■ Dual Rail Power for Signal Chain.
■ Buck/Buck, Buck/Boost, Boost/Boost, Boost/Invert,
Invert/Invert, Buck/Invert