LM5009A_TI 6V 至 95V 宽输入电压、150mA 恒定导通时间非同步降压稳压器

LM5009A的基本参数

制造厂商：TI
产品类别：电源管理
技术类目：直流/直流开关稳压器 - 降压稳压器
功能描述：6V 至 95V 宽输入电压、150mA 恒定导通时间非同步降压稳压器
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LM5009A的产品详情：

The LM5009A is a functional variant of the LM5009 COT buck switching regulator. The functional differences of the LM5009A are: The minimum input operating voltage is 6 V, the ON-time equation is slightly different, and the requirement for a minimum load current is removed.

The LM5009A step-down switching regulator features all of the functions required to implement a low cost, efficient, buck bias regulator. This high voltage regulator contains an 100-V N-channel buck switch. The device is easy to implement and is provided in the 8-pin VSSOP and the thermally enhanced 8-pin WSON packages. The regulator is based on a control scheme using an ON time inversely proportional to V_IN. This feature allows the operating frequency to remain relatively constant. The control scheme requires no loop compensation. An intelligent current limit is implemented with 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, undervoltage lockout (V_CC), gate drive undervoltage lockout, max duty cycle limiter, and a precharge switch.

LM5009A的优势和特性：

Operating Input Voltage Range: 6 V to 95 V
Integrated 100-V, N-Channel Buck Switch
Internal Start-Up Regulator
No Loop Compensation Required
Ultra-Fast Transient Response
ON Time Varies Inversely With Input Voltage
Operating Frequency Remains Constant With Varying Line Voltage and Load Current
Adjustable Output Voltage From 2.5 V
Highly Efficient Operation
Precision Internal Reference
Low Bias Current
Intelligent Current Limit
Thermal Shutdown
8-Pin VSSOP and 8-Pin WSON (4 mm × 4 mm) Packages

LM5009A的参数（英文）：

Vin (Min) (V)
6
Vin (Max) (V)
95
Vout (Min) (V)
2.5
Vout (Max) (V)
85
Iout (Max) (A)
0.15
Iq (Typ) (uA)
485
Switching frequency (Min) (kHz)
50
Switching frequency (Max) (kHz)
600
Features
Enable, Over Current Protection
Rating
Catalog
Regulated outputs (#)
1
Control mode
Constant on-time (COT)
Duty cycle (Max) (%)
99

LM5009A具体的完整产品型号参数及价格（美元）：

LM5009A的完整型号有：LM5009AMM/NOPB、LM5009AMMX/NOPB、LM5009ASD/NOPB、LM5009ASDX/NOPB，以下是这些产品的关键参数及官网采购报价：

LM5009AMM/NOPB，工作温度：-40 to 125，封装：VSSOP (DGK)-8，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LM5009AMM/NOPB的批量USD价格：1.278（1000+）

LM5009AMMX/NOPB，工作温度：-40 to 125，封装：VSSOP (DGK)-8，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LM5009AMMX/NOPB的批量USD价格：1.065（1000+）

LM5009ASD/NOPB，工作温度：-40 to 125，封装：WSON (NGU)-8，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LM5009ASD/NOPB的批量USD价格：1.278（1000+）

LM5009ASDX/NOPB，工作温度：-40 to 125，封装：WSON (NGU)-8，包装数量MPQ：4500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LM5009ASDX/NOPB的批量USD价格：1.065（1000+）

LM5009A的评估套件：

LM5009AEVAL — 用于 LM5009A 的评估板

The LM5009AEVAL 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 8V to 75V. The circuit delivers load currents to 150 mA, with current (...)

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LM5009A的电路图解：

LM5009A的评估套件：