LMR23615QDRRRQ1

LMR23615-Q1 SIMPLE SWITCHER是一款简便易用的36V、1.5A同步降压稳压器。该器件具有4V至36V的宽输入范围，适用于从工业到汽车各类应用中非稳压电源的电压调节。此器件采用峰值电流模式控制来实现简单控制环路补偿和逐周期电流限制。它具有75μA的静态电流，因此适用于电池供电型系统。2μA的超低关断电流可进一步延长电池使用寿命。内部环路补偿意味着用户不用承担设计环路补偿组件的枯燥工作，还能够最大限度地减少外部元件数。

该器件的扩展系列产品能够以引脚到引脚兼容的封装提供2.5A (LMR23625-Q1) 和3A (LMR23630-Q1) 负载电流选项，从而可以实现简单且最佳的PCB布局。精密使能输入简化了稳压器控制和系统电源排序。保护功能特性包括逐周期电流限制、间断模式短路保护和过多功率耗散而引起的热关断。

The LMR23615-Q1 SIMPLE SWITCHER regulator is an easy-to-use synchronous step-down DC/DC converter operating from 4-V to 36-V supply voltage. The device is capable of delivering up to 1.5-A DC load current with good thermal performance in a small solution size. An extended family is available in multiple current options from 1.5 A to 3 A in pin-to-pin compatible packages.

The LMR23615-Q1 employs fixed-frequency peak-current-mode control. The device enters PFM mode at light load to achieve high efficiency. The device is internally compensated, which reduces design time and requires few external components. The switching frequency is adjustable from 200 kHz to 2.2 MHz, leave RT pin open for 400-kHz default switching frequency. The LMR23615-Q1 is capable of synchronization to an external clock within the range of 200 kHz to 2.2 MHz.

Additional features such as precision enable and internal soft start provide a flexible and easy-to-use solution for a wide range of applications. Protection features include thermal shutdown, VIN and VCC undervoltage lockout (UVLO), cycle-by-cycle current limit, and hiccup-mode short-circuit protection.

The family requires very few external components and has a pinout designed for simple, optimum PCB layout.

• 符合汽车应用标准，具有符合AEC-Q100标准的下列特性：
• 器件温度1级：-40°C至+125°C的环境运行温度范围
• 器件HBM ESD分类等级H2
• 器件组件充电模式(CDM) ESD分类等级C4A
• 4V至36V的输入范围
• 1.5A持续输出电流，集成同步整流
• 最短打开时间：60ns
• 方便易用的内部补偿
• 可调开关频率
• 轻负载下的脉冲频率调制(PFM)模式
• 与外部时钟频率同步
• 软启动至预偏置负载
• 支持高占空比运行模式
• 具有间断模式的输出短路保护
• 12引脚WSON可湿侧面封装，采用PowerPAD
• 结合使用LMR23615-Q1和WEBENCH电源设计器创建定制设计

• 汽车信息娱乐系统：仪表组、音响主机、抬头显示
• USB充电
• 一般电池供电应用