LM337L - 3 端子可调节稳压器

LM337L是TI德州仪器公司的一款单通道LDO产品，LM337L是3 端子可调节稳压器，本站介绍了LM337L的封装应用图解、特点和优点、功能等，并给出了与LM337L相关的TI元器件型号供参考。

LM337L - 3 端子可调节稳压器 - 单通道LDO - 线性稳压器(LDO) - 德州仪器

产品描述

The LM337L is an adjustable 3-terminal negative voltage regulator capable of supplying 100mA over a 1.2V to 37V output range. It is exceptionally easy to use and requires only two external resistors to set the output voltage. Furthermore, both line and load regulation are better than standard fixed regulators. Also, the LM337L is packaged in a standard TO-92 transistor package which is easy to use.

In addition to higher performance than fixed regulators, the LM337L offers full overload protection. Included on the chip are current limit, thermal overload protection and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected.

Normally, only a single 1μF solid tantalum output capacitor is needed unless the device is situated more than 6 inches from the input filter capacitors, in which case an input bypass is needed. A larger output capacitor can be added to improve transient response. The adjustment terminal can be bypassed to achieve very high ripple rejection ratios which are difficult to achieve with standard 3-terminal regulators.

Besides replacing fixed regulators, the LM337L is useful in a wide variety of other applications. Since the regulator is “floating” and sees only the input-to-output differential voltage, supplies of several hundred volts can be regulated as long as the maximum input-to-output differential is not exceeded.

Also, it makes an especially simple adjustable switching regulator, a programmable output regulator, or by connecting a fixed resistor between the adjustment and output, the LM337L can be used as a precision current regulator. Supplies with electronic shutdown can be achieved by clamping the adjustment terminal to ground which programs the output to 1.2V where most loads draw little current.

The LM337L is available in a standard TO-92 transistor package, SO-8 surface mount package, and in our new 12 mil diameter bump DSBGA package. The LM337L is rated for operation over a −25°C to +125°C range.

For applications requiring greater output current in excess of 0.5A and 1.5A, see LM137 series data sheets. For the positive complement, see series LM117 and LM317L data sheets.

产品特性

Adjustable Output Down to 1.2V
Ensured 100mA Output Current
Line Regulation Typically 0.01%/V
Load Regulation Typically 0.1%
Current Limit Constant With Temperature
Eliminates the Need to Stock Many Voltages
Standard 3-Lead Transistor Package
80 dB Ripple Rejection
Output is Short Circuit Protected
Available in the 6-Bump DSBGA Package
See AN-1112 (Literature Number SNVA009) for DSBGA Considerations

下面可能是您感兴趣的TI德州仪器公司单通道LDO元器件

TI公司产品现货专家，订购TI公司产品不限最低起订量，TI芯片大陆现货即时发货，香港库存3-5天发货，海外库存7-10天发货

寻找全球TI代理商现货货源 - TI公司（德州仪器）电子元件在线订购