The LMR14006 is a PWM DC/DC buck (step-down) regulator. With a wide input range of 4 V-40 V, it is suitable for a wide range of application from industrial to automotive for power conditioning from an unregulated source. The regulator’s standby current is 28 µA in sleep mode, which is suitable for battery operating systems. An ultra low 1 µA current can further prolong battery life in shutdown mode. Operating frequency is fixed at 1.1 MHz (X version) and 2.1 MHz (Y version) allowing the use of small external components while still being able to have low output ripple voltage. Soft-start and compensation circuits are implemented internally, and these allow the device to be used with minimized external components. The LMR14006 is optimized for up to 600 mA load current which has a 0.765 V typical feedback voltage. The device has built-in protection features such as pulse by pulse current limit, thermal sensing and shutdown due to excessive power dissipation. The LMR14006 is available in a low profile TSOT-6L package.

• Ultra Low 28 μA Standby Current in Sleep Mode
• Input Voltage Range 4 V to 40 V
• 1 μA Shutdown Current
• High Duty Cycle Operation Supported
• Output Current up to 600 mA
• 1.1 MHz and 2.1 MHz Switching Frequency
• Internal Compensation
• High Voltage Enable Input
• Internal Soft Start
• Over Current Protection
• Over Temperature Protection
• Small Overall Solution Size (TSOT-6L Package)

• Vin (Min) (V)
• 4
• Vin (Max) (V)
• 40
• Vout (Min) (V)
• 0.8
• Vout (Max) (V)
• 30
• Iout (Max) (A)
• 0.6
• Iq (Typ) (uA)
• 28
• Switching frequency (Min) (kHz)
• 1100
• Switching frequency (Max) (kHz)
• 2100
• Features
• Enable, Light Load Efficiency, Over Current Protection, Pre-Bias Start-Up, UVLO Adjustable, Soft Start Fixed
• Rating
• Catalog
• Regulated outputs (#)
• 1
• Control mode
• Current Mode
• Duty cycle (Max) (%)
• 97

LMR14006的完整型号有：LMR14006XDDCR、LMR14006XDDCT、LMR14006YDDCR、LMR14006YDDCT，以下是这些产品的关键参数及官网采购报价：

LMR14006XDDCR，工作温度：-40 to 125，封装：SOT-23-THIN (DDC)-6，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网LMR14006XDDCR的批量USD价格：.774（1000+）

LMR14006XDDCT，工作温度：-40 to 125，封装：SOT-23-THIN (DDC)-6，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网LMR14006XDDCT的批量USD价格：.929（1000+）

LMR14006YDDCR，工作温度：-40 to 125，封装：SOT-23-THIN (DDC)-6，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网LMR14006YDDCR的批量USD价格：.774（1000+）

LMR14006YDDCT，工作温度：-40 to 125，封装：SOT-23-THIN (DDC)-6，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网LMR14006YDDCT的批量USD价格：.929（1000+）

LMR14006YEVM — 4V 至 40V 输入、5.0V 输出 (600mA) 降压转换器评估模块

The LMR14006YEVM is a fully assembled and tested circuit for evaluating the LMR14006Y Step-Down Converter. The LMR14006YEVM operates from 4V to 40V input (12V nominal) and provides a 5.0V output at 600mA. The board also has jumper connector to enable or disable the converter operation.

LMR14006Y PSpice Transient Model

PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用，包括业内超大的模型库之一，涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

借助?PSpice for TI 的设计和仿真环境及其内置的模型库，您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案，然后再进行布局和制造，可缩短产品上市时间并降低开发成本。

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