Linear Technology
LTC3789 - High Efficiency, Synchronous, 4-Switch Buck-Boost Controller
Features
.Single Inductor Architecture Allows VIN Above, Below or Equal to the Regulated VOUT
.Programmable Input or Output Current
.Wide VIN Range: 4V to 38V
.1% Output Voltage Accuracy: 0.8V < VOUT < 38V
.Synchronous Rectification: Up to 98% Efficiency
.Current Mode Control
.Phase-Lockable Fixed Frequency: 200kHz to 600kHz
.No Reverse Current During Start-Up
.Power Good Output Voltage Monitor
.Internal 5.5V LDO
.Quad N-Channel MOSFET Synchronous Drive
.VOUT Disconnected from VIN During Shutdown
.True Soft-Start and VOUT Short Protection, Even in Boost Mode
.Available in 28-Lead QFN (4mm × 5mm) and 28-Lead SSOP Packages
Designed for Automotive and Transportation Applications
AEC-Q100 data available for specific packages
Typical Application
HTC KOREA 系列产品：高效率同步DC/DC转换器、低输入电压-低输出电压及低静态电流CMOS LDO稳压器 介绍
.High Efficiency Synchronous DC/DC Converter (Step-down Switching Regulator)
.高效率同步DC/DC转换器（降压开关稳压器）
TJ6326 TSLT/DFN 0.6A Synchronous Step-down Voltage Regulator(2.0MHz)
TJ6346 TSLT/DFN 0.6A Synchronous Step-down Voltage Regulator(4.0MHz)
TJ6320 TSLT/DFN 1.0A Synchronous Step-down Voltage Regulator(2.0MHz)
TJ6340 TSLT/DFN 1.0A Synchronous Step-down Voltage Regulator(4.0MHz)
.Low Input-Low Output,Low Quiescent CMOS LDO Voltage Regulator
.低输入电压-低输出电压，低静态电流CMOS LDO稳压器
TJ112 DFN1010-4L/SC70-5L/SOT-23-5L
TJ114 DFN1010-4L/DFN1216-4L/SC70-5L/SOT-23-5L
TJ118 DFN1216-4L/SC70-5L/SOT-23-5L
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HTC KOREA 芯片：非同步DC/DC转换器（降压工关稳压器）推介
.Non-Synchronous DC/DC
.非同步DC/DC转换器
型号 输出电压V 最（大）输入电压V 输出电流A 开关频率KHz 封装
LM2576 ADJ/3.3/5.0/12 40 3.0 52 SOP-8PP/TO263/220
LM2576HV ADJ/3.3/5.0/12 60 3.0 52 SOP-8PP/TO263/220
LM2596 ADJ/3.3/5.0/12 40 3.0 150
