Микросхема LM5574MT/NOPB

Характеристики

LM5574MT/NOPBThe LM5574MT is an easy-to-use SIMPLE SWITCHER® Buck Regulator which allows design engineers to design and optimize a robust power supply using a minimum set of components. Operating with an input voltage range of 6 to 75V, the LM5574 delivers 0.5A of continuous output current with an integrated 750mR N-channel MOSFET. The regulator utilizes an emulated current-mode architecture which provides inherent line regulation, tight load transient response and ease of loop compensation without the usual limitation of low-duty cycles associated with current mode regulators. The operating frequency is adjustable from 50 to 500kHz to allow optimization of size and efficiency. To reduce EMI, a frequency synchronization pin allows multiple IC’s from the LM(2)557x family to self-synchronize or to synchronize to an external clock. The LM5574 ensures robustness with cycle-by-cycle current limit, short-circuit protection, thermal shut-down and remote shut-down.

• Master or slave frequency synchronization
• Adjustable soft-start function
• Emulated current-mode control architecture
• Wide bandwidth error amplifier
• Built-in protection
• 1.5% Feedback reference accuracy

Микросхемы / Микросхемы управления питанием / Импульсные преобразователи
Корпус: 16-TSSOP, инфо: Cтаб.напр.импульсный Step-Down 0.5A Uвх=6…75В Uвых=1.23…70В, Fраб=50…500КГц, синхронизаци, плавный пуск, КПД до 90%