Boost/Buck Converter Supplies Negative Bias

Dec. 1, 1999
Because it provides a fixed output voltage from -3 vdc to -5 vdc (adjustable in 1V increments) over an input voltage range of 2.5 vdc to 5.5 vdc, the TC1142 boost/buck dc-dc converter is well suited for regulated negative dc bias applications. The

Because it provides a fixed output voltage from -3 vdc to -5 vdc (adjustable in 1V increments) over an input voltage range of 2.5 vdc to 5.5 vdc, the TC1142 boost/buck dc-dc converter is well suited for regulated negative dc bias applications. The 20-mA device can be connected directly to a 3.6V single-cell Li-ion battery and requires no inductors, thereby saving space and cost and reducing EMI effects.With its built-in voltage reference and comparator, a minimum number of external components can be teamed with the TC1142 converter in applications demanding a regulated negative dc bias, such as GaAs power amplifiers in cellular handsets. It requires only three external capacitors. Active feedback circuitry maintains a 2 ohm (typical) output impedance while in regulation. The unit can be clocked from its on-board, 200-kHz oscillator or an external clock.

Company: TELCOM SEMICONDUCTOR INC.

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!