The LM5006 Step Down Switching Regulator features all of the functions needed to implement a low cost, efficient Buck bias regulator. This high voltage regulator contains an 80V N-Channel MOSFET Switch and a startup regulator. The device is easy to implement and is provided in an MSOP-10 package. The regulator’s control scheme uses an on-time inversely proportional to V_IN. This feature results in the operating frequency remaining relatively constant with line and load variations. The control scheme requires no loop compensation, resulting in fast transient response. An intelligent current limit is implemented with a forced off-time which is inversely proportional to V_OUT. This scheme ensures short circuit control while providing minimum foldback. Other features include: Thermal Shutdown, VCC Under Voltage Lock-out, Max Duty Cycle Limiter, a Pre-charge Switch, a programmable Under Voltage Detector with a status flag output, and a gate driver output for a synchronous rectifier.

---

Operating input voltage range: 6V to 75V

Integrated 80V, N-Channel Buck Switch

Internal start-up regulator

No Loop compensation required

Ultra-Fast Transient Response

Operating frequency remains constant with line and load variations

Adjustable output voltage from 2.5V

Precision internal reference, ±2.5%

Intelligent current limit reduces foldback

Programmable Input UV detector with status flag output

Gate output driver for synchronous rectifier

Pre-charge switch enables bootstrap gate drive with no load

Thermal shutdown

Typical Applications

Non-Isolated Telecommunication Buck Regulator

Secondary High Voltage Post Regulator

+42V Automotive Systems

Package

MSOP - 10

• Vin (Min) (V)
• 6
• Vin (Max) (V)
• 75
• Vout (Min) (V)
• 2.5
• Vout (Max) (V)
• 75
• Iout (Max) (A)
• 0.65
• Iq (Typ) (uA)
• 1000
• Switching frequency (Min) (kHz)
• 50
• Switching frequency (Max) (kHz)
• 800
• Features
• Enable, Over Current Protection, Power Good, UVLO Adjustable
• Rating
• Catalog
• Regulated outputs (#)
• 1
• Control mode
• Constant on-time (COT)
• Duty cycle (Max) (%)
• 99

LM5006的完整型号有：LM5006MM/NOPB、LM5006MMX/NOPB，以下是这些产品的关键参数及官网采购报价：

LM5006MM/NOPB，工作温度：-40 to 125，封装：VSSOP (DGS)-10，包装数量MPQ：1000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LM5006MM/NOPB的批量USD价格：1.626（1000+）

LM5006MMX/NOPB，工作温度：-40 to 125，封装：VSSOP (DGS)-10，包装数量MPQ：3500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LM5006MMX/NOPB的批量USD价格：1.355（1000+）

LM5006EVAL — 用于 LM5006 的评估板

The LM5006EVAL evaluation board provides the design engineer with a fully functional buck regulator, employing the constant on-time (COT) operating principle. This evaluation board provides a 5V output over an input range of 6V to 75V. The circuit delivers load currents to 500 mA, with current (...)

LM5006 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 (...)

LM5006QUICK-CALC — LM5006 快速入门计算器

此转换器用于不需要隔离的 1 类 PoE PD 应用。 TPS2378 PD 控制器加上 LM5006 降压转换器可提供 5V/560mA，通过小巧的尺寸实现高效率。 可以用二极管整流器来配置 LM5006 以实现最低的成本，或用同步 FET 整流器进行配置以提高效率。