Small and efficient high-frequency boost switcher has 5-12 V output

Power Electronics / Power Management

5 June 2002 Power Electronics / Power Management

Almost every portable instrument uses 2-cell alkaline or 1- to 2-cell Ni or Li batteries. With a typical operating output voltage range from 5 V to 12 V, these applications require a boost converter. Also, load conditions of circuits are becoming more complicated and more demanding on power. The load requires high-speed transient response, and the applicable PC board is restricted for real estate and height.

Analog Devices' ADP3031 is the company's first current-mode PWM boost converter. If one has an input condition from 2,5 V to 5,5 V and wishes to generate an output range from the input to 12 V with moderate output current, the ADP3031 can be a solution for such a requirement. In order to support high-speed transient response times, the PWM architecture is advantageous. Adjustable up to 2 MHz, at this frequency inductor size can be significantly reduced, and the input and output capacitors can be small MLCC types.

This fully integrated 1,5 A power switch offers simple compensation and is suited for applications such as portable electronics, instrumentation and TFT LCD biasing.

Share this article:

Solving South African power problems with locally built intelligence
Editor's Choice Power Electronics / Power Management
Smart metering infrastructure in South Africa remains patchy. The rollout has been slow, coverage is inconsistent, and for the most part, granular per-unit measurement simply does not exist.

Read more...

Wide range power module
Power Electronics / Power Management
The latest DC-DC modules from Würth Elektronik are characterised by high resilience to voltage transients on the 24 V bus and an extremely wide input-voltage range from 3,5 V to 38 V.

Read more...

Selecting primary batteries for maximum service life
Uniross Batteries Power Electronics / Power Management
Primary batteries play an important role in IoT applications. Designed for longevity, they have a high-energy capacity and are often used in standalone applications where charging is impractical or impossible.

Read more...

4 kW e-mobility DC-DC converter
Brabek Power Electronics / Power Management
The RECOM RMOD4000 series of compact, plug-and-play DC-DC converters is a cost-effective solution to provide isolated 14 V, 28 V, or 56 V DC network rails from a high input voltage between 180 and 950 V DC.

Read more...

Aluminium case upgrade boosts performance
Vepac Electronics Power Electronics / Power Management
The SQBF Quarter Brick 300 W DC to DC Converter is now available in a newly upgraded metal case designed to deliver improved durability and superior electrical performance across demanding applications.

Read more...

Extending the range of power converters
RS South Africa Power Electronics / Power Management
Power Integrations recently announced a breakthrough in flyback topology extending the power range of flyback converters to 440 W - well beyond the limits that traditionally required more complex resonant and LLC topologies.

Read more...

Categories

Power Electronics / Power Management

Small and efficient high-frequency boost switcher has 5-12 V output

Further reading:

Publications by Technews