The LM25005 switching regulator features all of the functions necessary to implement an efficient, high voltage buck regulator using a minimum of external components. This easy to use regulator includes a 42V, 160m?, N-channel MOSFET, with an output current capability of 2.5 Amps. The regulator control method is based upon current mode control utilizing an emulated current ramp. Current mode control provides inherent line voltage feed-forward, cycle-by-cycle current limiting and ease of loop compensation. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage applications. The operating frequency is programmable from 50kHz to 500kHz. An oscillator synchronization pin allows multiple LM25005 regulators to self-synchronize or to be synchronized to an external clock. Additional protection features include: current limit, thermal shutdown and remote shutdown capability. The device is available in a power enhanced HTSSOP package featuring an exposed die attach pad to aid thermal dissipation.

• Integrated 42V, 160m? N-Channel MOSFET
• Ultra-Wide Input Voltage Range from 7V to 42V
• Internal Bias Regulator
• Adjustable Output Voltage from 1.225V
• 1.5% Feedback Reference Accuracy
• Current Mode Control with Emulated Inductor Current Ramp
• Single Resistor Oscillator Frequency Setting
• Oscillator Synchronization Input
• Programmable Soft-Start
• Shutdown / Standby Input
• Wide Bandwidth Error Amplifier
• Thermal Shutdown

All trademarks are the property of their respective owners.

• Vin (Min) (V)
• 7
• Vin (Max) (V)
• 42
• Vout (Min) (V)
• 1.23
• Vout (Max) (V)
• 37
• Iout (Max) (A)
• 2.5
• Iq (Typ) (uA)
• 3000
• Switching frequency (Min) (kHz)
• 50
• Switching frequency (Max) (kHz)
• 500
• Features
• Enable, Frequency Synchronization, Over Current Protection
• Rating
• Catalog
• Regulated outputs (#)
• 1
• Control mode
• Current Mode
• Duty cycle (Max) (%)
• 98

LM25005的完整型号有：LM25005MH/NOPB、LM25005MHX/NOPB、LM25005MH，以下是这些产品的关键参数及官网采购报价：

LM25005MH/NOPB，工作温度：-40 to 125，封装：HTSSOP (PWP)-20，包装数量MPQ：73个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM25005MH/NOPB的批量USD价格：1.626（1000+）

LM25005MHX/NOPB，工作温度：-40 to 125，封装：HTSSOP (PWP)-20，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM25005MHX/NOPB的批量USD价格：1.355（1000+）

LM25005MH，工作温度：-40 to 125，封装：HTSSOP (PWP)-20，包装数量MPQ：73个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SNPB，TI官网LM25005MH的批量USD价格：2.236（1000+）

LM5005 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。

在?PSpice for TI 设计和仿真工具中，您可以搜索 TI (...)