VMIVME3230模拟量输出模块
高效6A开关稳压器
LT®1370是一款单片高频电流模式开关稳压器。它可以在所有标准开关配置中运行，包括升压、降压、反激、正向、反相和“Cuk”。芯片上包括6A高效开关以及所有振荡器、控制和保护电路。LT1370通常只消耗4.5mA的静态电流，并且比以前的部件具有更高的效率。高频开关允许使用非常小的电感器。新的设计技术增加了灵活性并保持了易用性。切换容易与外部逻辑电平源同步。关机引脚上的逻辑低将电源电流降至12µA。独特的误差放大器电路可以调节正或负输出电压，同时保持简单的频率补偿技术。非线性误差放大器跨导减少了启动或过载恢复时的输出过冲。振荡器频移在过载条件下保护外部组件。描述U 更快的切换，提高效率 使用小型电感器：4.7µH 所有表面安装组件
最低供电电压低：
2.7V 静态电流：
典型4.5mA 限流电源开关：6A 调节正或负输出 停机电源电流：典型12µA 轻松的外部同步 开关电阻：0.065Ω Typ TYPICAL APPLICATION U FEATURES、LTC和LT是Linear Technology Corporation的注册商标。 升压调节器 笔记本电脑用品 多输出反激电源 逆变电源应用U 5V至12V升压转换器 VC=0.8V处测量 1.225 1.245 1.265 V IFB反馈输入电流VFB=VREF 250 550 nA 900 nA参考电压线调节2.7V≤ 文≤ 25伏，电压=0.8伏 0.01 0.03%/V VNFR负反馈参考电压在负反馈引脚处测量–2.525–2.48–2.435 V反馈引脚开路，VC=0.8V –2.560–2.48–2.400 V INFB负反馈输入电流VNFB=VNFR –45–30–15µA负反馈参考电压2.7V≤ 文≤ 25伏，电压=0.8伏 0.01 0.05%/V线路调节gm误差放大器跨导∆IC=±25µA 1100 1500 1900µmho 700 2300µmho误差放大器源电流VFB=VREF–150mV，VC=1.5V
High efficiency 6A switching regulator
LT ® 1370 is a monolithic high-frequency current mode switching regulator. It can operate in all standard switch configurations, including boost, drop, flyback, forward, reverse and "Cuk". The chip includes 6A high efficiency switch and all oscillator, control and protection circuits. The LT1370 normally consumes only 4.5 mA of quiescent current and is more efficient than previous components. High frequency switches allow the use of very small inductors. New design techniques increase flexibility and maintain ease of use. Switching is easy to synchronize with external logic level source. The low logic on the shutdown pin reduces the power supply current to 12 µ A. The unique error amplifier circuit can adjust the positive or negative output voltage while maintaining a simple frequency compensation technology. The transconductance of nonlinear error amplifier reduces the output overshoot during startup or overload recovery. The oscillator frequency shift protects the external components under overload conditions. Describe faster U switching and efficiency improvement Use of small inductors: 4.7 µ H All surface mounted components
Low minimum supply voltage:
2.7 V quiescent current:
Typical 4.5mA current limiting power switch: 6A to adjust the current of positive or negative output shutdown power supply: typical 12 µ A easy external synchronous switch resistance: 0.065 Ω Typ TYPICAL APPLICATION U FEATURES, LTC and LT are registered trademarks of Linear Technology Corporation. Boost regulator Notebook computer supplies Multi output flyback power inverter power supply Use U 5V to 12V boost converter VC=0.8V to measure 1.225 1.245 1.265 V IFB feedback input current VFB=VREF 250 550 nA 900 nA reference voltage line to adjust 2.7 V ≤ Wen ≤ 25 V, voltage=0.8 V 0.01 0.03%/V VNFR negative feedback reference voltage to measure at the negative feedback pin – 2.525 – 2.48 – 2.435 V feedback pin open circuit, VC=0.8V – 2.560 – 2.48 – 2.400 V INFB negative feedback input current VNFB=VNFR – 45 – 30 – 15 µ A negative feedback reference voltage 2.7V ≤ Wen ≤ 25 V, voltage=0.8 V 0.01 0.05%/V Line adjustment gm error amplifier transconductance ∆ IC=± 25 µ A 1100 1500 1900 µ mho 700 2300 µ mho error amplifier source current VFB=VREF – 150V, VC=1.5V
