Datasheet Linear Technology LT8471HFE#TRPBF — 数据表

LT8471
Dual Multitopology
DC/DC Converters with 2A
Switches and Synchronization
Features Description Dual 2A and One 500mA, 50V Internal Power
Switch Channels
n 2A Primary Channels Can Be Buck, Boost, SEPIC,
ZETA, Flyback or Inverting DC/DC Converter
n 500mA Skyhook Channel Efficiently Generates
Boosted Input Voltage
n Wide Input Voltage Range of 2.6V to 50V
n UVLO and OVLO Programmable on OV/UV Pi Soft-Start Programmable for Each Channel
n Fixed Frequency PWM (Set by RT Pin or
Synchronized to External Clock)
n Anti-Phase Switching Reduces Input Ripple
n 20-Lead TSSOP and 28-Lead QFN Packages 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. n The LT8471 has an adjustable oscillator, set by a resistor
placed from the RT pin to ground. Additionally, the LT8471 …