產品概述
The LTC3633AIUFD#PBF is a dual-channel high effICiency monolithic synchronous Buck Regulator uses a controlLED on-time, current mode architecture, with phase lockable switching frequency. The two channels can run 180° out of phase to relax the requirements for input and output capacitance. The operating supply voltage range is from 3.6 to 20V, making it suitable for lithium-ion battery stacks as well as point of load power supply applications from a 12 or 5V supply. The operating frequency is programmable from 500kHz to 4MHz with an external resistor and may be synchronized to an external clock signal. The high frequency capability allows the use of small surface mount inductors and capacitors. The unique constant frequency/controlled on time architecture is ideal for high step-down ratio applications that operate at high frequency while demanding fast transient response.
Up to 95% efficiency
Selectable 0/180° Phase shift between channels
External frequency synchronization
Current mode operation for excellent line and load transient response
User Selectable Burst Mode? operation or forced continuous mode operation
Output voltage tracking and soft-start capability
Short-circuit protected
Overvoltage input and overtemperature protection
Power good status outputs
應用
產品信息
輸出個數: 2輸出 輸入電壓最小值: 3.6V 輸入電壓最大值: 20V 直流直流轉換器芯片封裝: QFN 針腳數: 28引腳 電流輸出 - 輸出1: 3A 電流輸出 - 輸出2: 3A 電壓輸出 - 輸出1: 6V 輸出電壓 - 輸出2: 6V 穩壓器輸出類型: 可調 開關頻率: 4.6MHz 拓撲結構: 同步降壓 (降壓) 工作溫度最高值: 125°C 產品范圍: - MSL: MSL 1 -無限制