Datasheet Analog Devices LT8711IUDC#TRA1PBF — 数据表

LT8711
Micropower Synchronous
Multitopology Controller
with 42V Input Capability
DESCRIPTION FEATURES
Easily Configurable as a Synchronous Buck, Boost,
SEPIC, ZETA or Nonsynchronous Buck-Boost Converter
nn Wide Input Range: 4.5V to 42V (V Can Operate
IN
to 0V, when EXTVCC > 4.5V)
nn Automatic Low Noise Burst Mode® Operation
nn Low I in Burst Mode Operation (15μA Operating)
Q
nn Input Voltage Regulation for High Impedance Source
nn 100% Duty Cycle in Dropout (Buck Mode)
nn 2A Gate Drivers (BG and TG)
nn Adjustable Soft-Start with One Capacitor
nn Frequency Programmable from 100kHz to 750kHz
nn Can Be Synchronized to External Clock
nn Available in 20-Lead TSSOP and 20-Lead 3mm×4mm
QFN Packages The LT®8711 is a multitopology current mode PWM controller that can easily be configured as a synchronous buck,
boost, SEPIC, ZETA or as a nonsynchronous buck-boost
converter. Its dual gate drive voltage inputs optimize gate …