The LM317M and LM317MQ are adjustable
floating, positive-voltage regulators capable of supplying an output current of 0.5A
over an output voltage range of 1.25V to 37V. The device requires only two external
resistors to set the output voltage. The device features a typical line regulation
of 0.01% and typical load regulation of 0.1%. The device includes current limiting,
thermal overload protection, and safe operating area protection.
The device is a floating regulator
meaning there is no device ground terminal. Quiescent current flows to the load
instead of being wasted flowing to ground. Regulated output voltage of hundreds of
volts is possible if the maximum input to output differential does not exceed 37V at
any time. The device can function as a floating current source controlled by a
single resistor.
Additionally, the device does not need
an output capacitor for stable operation across the load current range. Optionally,
the transient performance of the device can be improved using an electrolytic or
tantalum output capacitor. Bypass the ADJUST pin with any type of capacitor to
achieve high ripple-rejection ratios.
The LM317M and LM317MQ are adjustable
floating, positive-voltage regulators capable of supplying an output current of 0.5A
over an output voltage range of 1.25V to 37V. The device requires only two external
resistors to set the output voltage. The device features a typical line regulation
of 0.01% and typical load regulation of 0.1%. The device includes current limiting,
thermal overload protection, and safe operating area protection.
The device is a floating regulator
meaning there is no device ground terminal. Quiescent current flows to the load
instead of being wasted flowing to ground. Regulated output voltage of hundreds of
volts is possible if the maximum input to output differential does not exceed 37V at
any time. The device can function as a floating current source controlled by a
single resistor.
Additionally, the device does not need
an output capacitor for stable operation across the load current range. Optionally,
the transient performance of the device can be improved using an electrolytic or
tantalum output capacitor. Bypass the ADJUST pin with any type of capacitor to
achieve high ripple-rejection ratios.