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TD1509P5 TD1509PR 耐压45V 输出5V 2A电流异步降压DC/DC
TD泰德DC/DC车充IC: TD1509P5,TD1509PR的详细描述：
TD泰德(Techcode) 2500/盘,封装:SOP-8
概述：TD1509正常工作输入电压DC3.6V-45V/输出电压3.3/5V/ADJ(1.23V-43V)
/频率150KHz/内置限流保护.过热保护与短路保护/大工作电负载流2A/高效率90﹪/所有技术误差小于设定的3﹪。
是一款高效率低损耗大电流/工作电压范围大，工作稳定/性价比很高，使用面广的DC/DC电源管理芯片。
General Description
The TD1509 is a series of easy to use fixed and
adjustable step-down (buck) switch-mode voltage
regulators. These devices are available in fixed output
voltage of 5V,3.3V an adjustable output version. Both
versions are capable of driving a 2A load with excellent
line and load regulation.
Requiring a minimum number of external components,
these regulators are simple to use and include internal
frequency compensation, and a fixed-frequency
oscillator.
The output voltage is guaranteed to ±3% tolerance under
specified input voltage and output load conditions. The
oscillator frequency is guaranteed to ±15%. External
shutdown is included, featuring typically 80 μA standby
current. Self protection features include a two stage
frequency reducing current limit for the output switch and
an over temperature shutdown for complete protection
under fault conditions.
The TD1509 is available in SOP8 and DIP8 packages.
Applications
z Simple High-efficiency step-down regulator
z On-card switching regulators
z Positive to negative converter
z LCD monitor and LCD TV
z DVD recorder and PDP TV
z Battery charger
z Step-down to 3.3V for microprocessors
