LM25085MME/NOPB 供应商
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LM25085MME/NOPB
品牌：TI 封装/批号：原厂原装/22+ -
LM25085MME/NOPB
品牌：TI 封装/批号：原厂原封装/新批号
LM25085MME/NOPB 属性参数
- 制造商：National Semiconductor (TI)
- 输入电压：4.5 V to 42 V
- 输出电压：1.25 V to 42 V
- 输出电流：1.75 A
- 输出端数量：1
- 最大工作温度：+ 125 C
- 安装风格：SMD/SMT
- 封装 / 箱体：MSOP
- 最小工作温度：- 40 C
- 封装：Reel
- 工厂包装数量：250
产品特性
- LM25085-Q1 is an Automotive Grade product that is AEC-Q100 Grade 1 Qualified (–40°C to 125°C Operating Junction Temperature)
- Wide 4.5V to 42V Input Voltage Range
- Adjustable Current Limit Using RDS(ON) or a Current Sense Resistor
- Programmable Switching Frequency to 1MHz
- No Loop Compensation Required
- Ultra-Fast Transient Response
- Nearly Constant Operating Frequency with Line and Load Variations
- Adjustable Output Voltage from 1.25V
- Precision ±2% Feedback Reference
- Capable of 100% Duty Cycle Operation
- Internal Soft-Start Timer
- Integrated High Voltage Bias Regulator
- Thermal Shutdown
产品概述
The LM25085 is a high efficiency PFET switching regulator controller that can be used to
quickly and easily develop a small, efficient buck regulator for a wide range of applications. This
high voltage controller contains a PFET gate driver and a high voltage bias regulator which
operates over a wide 4.5V to 42V input range. The constant on-time regulation principle requires no
loop compensation, simplifies circuit implementation, and results in ultra-fast load transient
response. The operating frequency remains nearly constant with line and load variations due to the
inverse relationship between the input voltage and the on-time. The PFET architecture allows 100%
duty cycle operation for a low dropout voltage. Either the RDS(ON) of the
PFET or an external sense resistor can be used to sense current for over-current
detection.
LM25085MME/NOPB 数据手册
LM25085MME/NOPB
LM25085MME/NOPB 电路图
