17 May 2010

1A VLDO outputs down to 0.2 from 0.9V input

Linear Technology has announced the LT3022, a 1A very low dropout linear regulator (VLDO), featuring input voltage capability down to 0.9V and adjustable output voltage down to 0.2V.

The LT3022's low VIN capability, coupled with the device's low dropout (145mV typical at full load), make it suitable for low voltage, high current rails in digital ICs such as fpgas, asics, dsps, microprocessors and microcontrollers.

It also has applications in general high efficiency, low-Vin-to-low-Vout conversion (for example, 1.8 to 1.5V, 1.5 to 1.2V or 1.2 to 0.9V). The device offers low power operation at 400µA quiescent current with less than 10µA in shutdown, according to Linear.

The LT3022 regulator optimises stability and transient response with low ESR, ceramic output capacitors as small as 10µF. It features +/- 3% output voltage accuracy over line, load and temperature, 0.1% typical line regulation and 0.1% typical load regulation.

The device's internal protection circuitry includes reverse-battery protection, reverse output protection, reverse output-to-input (current) protection, current limiting, and thermal limiting with hysteresis.
The LT3022EDHC and LT3022IDHC (16lead 3 x 5mm DFN) and the LT3022EMSE & LT3022IMSE (thermally enhanced MSOP-16) operate from -40 to 125ºC junction temperature and are available from stock in both E and I grades.

Author
Chris Shaw

Supporting Information

Websites
http://www.linear.com

Companies
Linear Technology (UK) Ltd

This material is protected by Findlay Media copyright
See Terms and Conditions.
One-off usage is permitted but bulk copying is not.
For multiple copies contact the sales team.

Do you have any comments about this article?


Add your comments

Name
 
Email
 
Comments
 

Your comments/feedback may be edited prior to publishing. Not all entries will be published.
Please view our Terms and Conditions before leaving a comment.

Related Articles

Altera poewrs programmable fut

Five months after its acquisition over Enpirion, Altera has announced the first ...

Infineon's mosfet alternative

Infineon has launched the 500V CoolMOS CE series as an alternative to standard ...

32bit chip integrated in PMIC

Dialog Semiconductor has licensed the ARM Cortex-M0 processor for use in future ...

Cutting the power bill

SoCs are getting smaller and faster, but smaller node geometries leak more ...

Smart design saves power

Designing loop powered field instruments with a 4 to 20mA analogue output and a ...

Serving up a new approach

It is reasonable to assume that anyone reading this article has dealings, in ...

Capturing data in mcu apps

Developers continue to benefit from increased silicon integration, enabling ...

Batteries worldwide celebrate the arrival of ...

The explosion in use of battery operated electronics is followed by the need ...

Factorised power architecture and VI Bricks

As electronic systems continue to trend toward lower voltages with higher ...

6W ac/dc coverter

Recom has extended its product family of isolated ac/dc power modules with ...

Intelligent power switch

Power semiconductor specialist, STMicroelectronics has introduced an ...

Six channel touch controller with integral ...

Atmel’s AT42QT1060 is a touch control chip that integrates six channels of ...

Powering Xilinx fpgas

This video provides a detailed overview on how to use TI's WEBENCH FPGA Power ...

Sensorless FOC Video

Watch two of TI's motor experts explain how the DRV8312-C2-KIT, a complete ...

TI DRV8312-C2-KIT

Watch Ryan Kehr, applications manager for TI's Motor Drive Business Unit, ...

Divide and conquer, or…

Divide and conquer is a valid strategy for solving complex problems. In ...