LM5009A - 100V、150mA 宽输入电压恒定导通时间降压开关稳压器

LM5009A是TI德州仪器公司的一款转换器（集成开关）产品，LM5009A是100V、150mA 宽输入电压恒定导通时间降压开关稳压器，本站介绍了LM5009A的封装应用图解、特点和优点、功能等，并给出了与LM5009A相关的TI元器件型号供参考。

LM5009A - 100V、150mA 宽输入电压恒定导通时间降压开关稳压器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品描述

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 volts, 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 needed 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 VSSOP-8 and the thermally enhanced WSON-8 packages. The regulator is based on a control scheme using an ON time inversely proportional to VIN. 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 Vout. This scheme ensures short circuit control while providing minimum foldback. Other features include: Thermal Shutdown, VCC under-voltage lockout, Gate drive under-voltage lockout, Max Duty Cycle limiter, and a pre-charge switch.

产品特性

Operating input voltage range: 6V to 95V
Integrated 100V, 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 2.5V
Highly efficient operation
Precision internal reference
Low bias current
Intelligent current limit
Thermal shutdown
VSSOP-8 and WSON-8 (4mm x 4mm) packages

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