LINEAR TECHNOLOGY LTC3859EUHF#PBF 直流/直流控制器, 4.5V至38V, 3路输出, 同步降压/ 降压-升压, 585kHz, QFN-38
The is a high-performance triple output buck/ buck/boost synchronous DC/DC Switching Regulator Controller drives all N-channel power MOSFET stages. Constant frequency current-mode architecture allows a phase-lockable switching frequency of up to 850kHz. It operates from a wide 4.5 to 38V input supply range. When biased from the output of the boost converter or another auxiliary supply, the controller can operate from an input supply as low as 2.5V after start-up. The 55µA no-load quiescent current extends operating runtime in battery powered systems. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. It features a precision 0.8V reference for the bucks, 1.2V reference for the boost and a power good output indicator. Independent TRACK/SS pins for each controller ramp the output voltages during start-up. Current foldback limits MOSFET heat dissipation during short-circuit conditions.
电源电压DC 4.50V min
输出接口数 3
输出电压 0.8.24 V
输出电流 25 A
针脚数 38
开关频率 585 kHz
占空比 100 %
输入电压Max 38 V
输入电压Min 4.5 V
最大占空比 99 %
工作温度Max 125 ℃
工作温度Min -40 ℃
电源电压 4.5V ~ 38V
电源电压Max 38 V
电源电压Min 4.5 V
输入电压 4.5.38 V
安装方式 Surface Mount
引脚数 38
封装 QFN-38
封装 QFN-38
工作温度 -40℃ ~ 125℃
产品生命周期 Unknown
包装方式 Cut Tape CT
制造应用 Power Management, 车用, 电源管理, Automotive
RoHS标准 RoHS Compliant
含铅标准 Lead Free
REACH SVHC标准 No SVHC
REACH SVHC版本 2015/12/17
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
LTC3859EUHF#PBF Linear Technology 凌力尔特 | 当前型号 | 当前型号 |
LTC3859IUHF#PBF 凌力尔特 | 完全替代 | LTC3859EUHF#PBF和LTC3859IUHF#PBF的区别 |
LTC3859EUHF#TRPBF 凌力尔特 | 完全替代 | LTC3859EUHF#PBF和LTC3859EUHF#TRPBF的区别 |
LTC3859IUHF#TRPBF 凌力尔特 | 完全替代 | LTC3859EUHF#PBF和LTC3859IUHF#TRPBF的区别 |