A High Voltage LDO regulator

August 13, 2014 | 23:52
A High Voltage LDO regulator
A High Voltage LDO regulator

To add to its growing family of voltage regulator solutions Linear Technology Corporation have announced the LT3061, a high-voltage, low-noise, low-dropout voltage linear regulator with active output discharge. The device can deliver up to 100 mA of continuous output current with a 250 mV dropout voltage at full load. The LT3061 features an NMOS pull-down that discharges the output when SHDN or IN is driven low. This rapid output discharge is useful for applications requiring power conditioning on both start-up and shutdown (e.g. high-end imaging sensors).

A single external capacitor provides programmable low noise reference performance and output soft-start functionality. The LT3061 has a quiescent current of 45μA and provides fast transient response with a minimum 3.3μF output capacitor. In shutdown the quiescent current is less than 3μA and the reference soft-start capacitor is reset.

Main features include:

• Wide 1.6 V to 45 V input voltage range.
• Adjustable output voltages from 0.6 V to 19 V.
• Ultralow noise operation of 30 µVRMS across a 10 Hz to 100 kHz bandwidth.
• Low quiescent current of 45 µA (operating) and < 2 µA (in shutdown).

The LT3061 is available as an adjustable device with an output voltage range from the 600mV reference up to 19V. The chip is supplied in a thermally enhanced 8-lead 2mm × 3mm DFN and MSOP outline. For more information visit www.linear.com

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