- 3.3V, 5V, 12V and adjustable output versions
- Adjustable version output voltage range, 1.2V to 37V (HV version 57V) ± 4% line-up maximum load condition
- Available in 8-pin surface mount in DIP-8 packages
- 0.5A output current is guaranteed
- Input voltage range up to 60V
- Only 4 external components are required
- Internal oscillator at fixed frequency at 150 kHz
- TTL shutdown capability
- Low-power standby mode，IQ is typically 85μA
- High efficiency
- Use off-the-shelf standard inductors
- Thermal shutdown and current limit protection
illustrate
监管机构的LM2594/LM2594HV系列是单片集成电路，提供积极降压（降压）开关稳压器，能够驾驶一辆出色的线路和负载调节0.5A负载的所有功能。 这些器件可在3.3V，5V，12V和可调输出版本固定输出电压，并在一个8引脚DIP封装和8引脚的表面贴装封装。
Requiring a minimum number of external components, these regulators are simple to use, feature internal frequency compensation †, fixed frequency oscillators, and improved line and load regulation specifications.
LM2594/LM2594HV系列开关频率在150千赫从而使较小的尺寸将与较低频率的开关稳压器需要的过滤器组件。 由于其高效率，印刷电路板的铜迹线通常是唯一的散热需要。
标准的电感器系列（通孔和表面贴装类型）可从LM2594/LM2594HV系列使用优化几个不同厂家生产的。 This feature greatly simplifies the design of switching power supplies.
Other features include guaranteed 4% tolerance under all conditions under input voltage and output load conditions ± output voltage, and 15% frequency ± oscillator. 包括外部关机，通常具有85μA待机电流。 Self-protection features include two-stage frequency reduction output switching and current limiting, complete protection under overtemperature shutdown fault conditions.
The LM2594HV is an application requiring input voltages up to 60V.
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- Simple high efficiency buck (buck) regulator
- Efficient preconditioning of linear regulators
- Switching regulator on the card
- Aggressive negative voltage converter
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