LM117HVQML - 3-Terminal Adjustable Regulator

LM117HVQML是TI德州仪器公司的一款单通道LDO产品，LM117HVQML是3-Terminal Adjustable Regulator，本站介绍了LM117HVQML的封装应用图解、特点和优点、功能等，并给出了与LM117HVQML相关的TI元器件型号供参考。

LM117HVQML - 3-Terminal Adjustable Regulator - 单通道LDO - 线性稳压器(LDO) - 德州仪器

产品描述

The LM117HV are adjustable 3-terminal positive voltage regulators capable of supplying either 0.5A or 1.5A over a 1.2V to 57V output range. They are exceptionally easy to use and require only two external resistors to set the output voltage. Further, both line and load regulation are better than standard fixed regulators.

In addition to higher performance than fixed regulators, the LM117HV series offers full overload protection available only in IC's. 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, no capacitors are needed unless the device is situated more than 6 inches from the input filter capacitors in which case an input bypass is needed. An optional output capacitor can be added to improve transient response. The adjustment terminal can be bypassed to achieve very high ripple rejections ratios which are difficult to achieve with standard 3-terminal regulators.

Besides replacing fixed regulators, the LM117HV 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, i.e. do not short the output to ground.

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 LM117HV 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.

产品特性

Available with Radiation Ensured
- Total Ionizing Dose 100 krad(Si)
- Low Dose Rate Qualified 100 krad(Si)
Adjustable Output down to 1.2V
Specified 0.5A or 1.5A 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
80 dB Ripple Rejection
Output is Short-Circuit Protected

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