5-A Programmable Regulator Features Low Dropout Voltage And Noise

Oct. 8, 2008
The LT3070 is a digitally programmable linear regulator with an extremely low dropout voltage, low noise and fast transient response. Dropout voltage at 5 A is an ultra-low 85 mV. Output voltage noise at 5 A is only 25 µVRMS over a bandwidth

The LT3070 is a digitally programmable linear regulator with an extremely low dropout voltage, low noise and fast transient response. Dropout voltage at 5 A is an ultra-low 85 mV. Output voltage noise at 5 A is only 25 µVRMS over a bandwidth of 10 Hz to 100 kHz. The LT3070's 1-MHz unity-gain bandwidth, coupled with its minimum 15-µF ceramic output capacitance, provides a mere 30 mV of overshoot/undershoot in response to a fast 4.5-A output load step, saving significant bulk capacitance, space and cost. The LT3070 is suited for efficiently powering low-voltage, high-current devices such as FPGAs, DSPs, ASICs, microprocessors, sensitive communication supplies, server/storage devices, and post-buck regulation applications. The LT3070's output voltage is digitally programmable from 0.8 V to 1.8 V in 50-mV increments. Accuracy is tightly specified at ±1% over line, load and temperature. A digital margining feature can adjust system output voltage in increments of ±1%, ±3% or ±5%, advantageous during system development debug. A Power Good flag indicates if output voltage is in regulation; the flag also provides an early warning indication of a thermal fault. The LT3070's input supply voltage range is 0.95 V to 3.0 V and its bias supply voltage ranges from 2.2V to 3.6V. The bias supply provides gate drive to the internal NMOS pass device. The LT3070 is offered in a thermally enhanced, low profile (0.75-mm) 28-lead 4-mm x 5-mm QFN package, and both E and I grades operate from -40ºC to +125ºC junction temperature range. Pricing starts at $4.20 and $4.80 each, respectively, in lots of 1000. LINEAR TECHNOLOGY CORP., Milpitas, CA. (408) 432-1900.

Company: LINEAR TECHNOLOGY CORP.

Product URL: Click here for more information

Sponsored Recommendations

Board-Mount DC/DC Converters in Medical Applications

March 27, 2024
AC/DC or board-mount DC/DC converters provide power for medical devices. This article explains why isolation might be needed and which safety standards apply.

Use Rugged Multiband Antennas to Solve the Mobile Connectivity Challenge

March 27, 2024
Selecting and using antennas for mobile applications requires attention to electrical, mechanical, and environmental characteristics: TE modules can help.

Out-of-the-box Cellular and Wi-Fi connectivity with AWS IoT ExpressLink

March 27, 2024
This demo shows how to enroll LTE-M and Wi-Fi evaluation boards with AWS IoT Core, set up a Connected Health Solution as well as AWS AT commands and AWS IoT ExpressLink security...

How to Quickly Leverage Bluetooth AoA and AoD for Indoor Logistics Tracking

March 27, 2024
Real-time asset tracking is an important aspect of Industry 4.0. Various technologies are available for deploying Real-Time Location.

Comments

To join the conversation, and become an exclusive member of Electronic Design, create an account today!