LM117HVQML Datasheet | Texas Instruments

LM117HVQML, LM117HVQML-SP .ti. SNVS357D - MARCH 2006 - REVISED APRIL 2013 LM117HVQML 3-Terminal Adjustable Regulator Check for Samples: LM117HVQML, LM117HVQML-SP Features 1 - 2 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 DESCRIPTION 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...