PDF, 572 Kb, 语言: en, 文件上传: Sep 23, 2017, 页数: 34
Low IQ, Synchronous Step-Down Controller with 24V Output Voltage Capability
从文件中提取
LTC3807
Low IQ, Synchronous
Step-Down Controller with 24V
Output Voltage Capability
FEATURES n n n n n n n n n n n n n n n n DESCRIPTION Wide VIN Range: 4V to 38V (40V Abs Max)
Low Operating IQ: 50μA
Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 24V
RSENSE or DCR Current Sensing
Phase-Lockable Frequency (75kHz to 750kHz)
Programmable Fixed Frequency (50kHz to 900kHz)
Selectable Continuous, Pulse-Skipping or Low Ripple
Burst Mode® Operation at Light Load
Selectable Current Limit
Very Low Dropout Operation: 99% Duty Cycle
Adjustable Output Voltage Soft-Start or Tracking
Power Good Output Voltage Monitor
Output Overvoltage Protection
Low Shutdown IQ: 14μA
Internal LDO Powers Gate Drive from VIN or EXTVCC
No Current Foldback During Start-Up
Small 20-Pin 3mm × 4mm QFN and TSSOP Packages APPLICATIONS Automotive Always-On Systems Battery Powered Digital Devices
n Distributed DC Power Systems
n The LTC®3807 is a high performance step-down switching …