Power Electronics / Power Management


High-density buck converters

23 March 2016 Power Electronics / Power Management

Exar’s new family of synchronous step-down (buck) power modules are complete system-in-package power management solutions with fully integrated power converters, including MOSFETs, inductors and internal input and output capacitors.

The XR79103, XR79106, XR79203 and XR79206 are 22 V and 40 V devices with load current ratings of 3 A and 6 A. The XR79103’s and XR79106’s wide 4,5 V to 22 V input voltage range allows for single supply operation from industry standard 5 V, 12 V and 19,6 V rails. The XR79203 and XR79206 have an even wider 4,5 V to 40 V input voltage range, allowing for single supply operation from industry standard 24 V ±10%, 18 V – 36 V and rectified 18 V a.c. and 24 V a.c. rails.

With a proprietary emulated current mode constant-on-time (COT) control scheme, these modules provide extremely fast line and load transient response using ceramic output capacitors. They require no loop compensation, simplifying circuit implementation and reducing overall component count. A selectable power saving mode allows the user to operate in discontinuous current mode (DCM) at light current loads, thereby significantly increasing the converter efficiency.

Available in a QFN package, these modules provide enhanced thermal performance and manufacturability. The QFN package makes visual inspection of solder joints possible and eases electrical debugging.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

MOSFET half-bridge power stage
30 June 2020, Altron Arrow , Power Electronics / Power Management
Vishay Intertechnology introduced a new 30 V n-channel MOSFET half-bridge power stage that combines a high-side TrenchFET MOSFET and low-side SkyFET MOSFET with integrated Schottky diode in one compact ...

Read more...
Programmable electronic DC loads with energy recovery
30 June 2020, Vepac Electronics , Power Electronics / Power Management
Elektro-Automatik’s new series of electronic DC loads with energy recovery to mains, called EA-ELR 9000 HP, is an advancement of the series EA-ELR 9000. It offers a wider AC input range for operation ...

Read more...
18 V synchronous buck converters
30 June 2020, Altron Arrow , Power Electronics / Power Management
Suitable for consumer and industrial applications, Diodes Incorporated announced the AP62xxx family of high-efficiency synchronous step-down DC-DC converters including the AP62250 (2,5 A), AP62300 (3 A), ...

Read more...
MOSFET half-bridge power stage
30 June 2020, Altron Arrow , Power Electronics / Power Management
Vishay Intertechnology introduced a new 30 V n-channel MOSFET half-bridge power stage that combines a high-side TrenchFET MOSFET and low-side SkyFET MOSFET with integrated Schottky diode in one compact ...

Read more...
Laser diode driver power supplies
30 June 2020, Vepac Electronics , Power Electronics / Power Management
DEI offers a variety of laser diode driver instruments designed with the laser researcher, system designer and scientist in mind. In both bench-top and rack-mount configurations, as well as a variety ...

Read more...
USB Type-C power delivery controller
30 June 2020, CST Electronics , Power Electronics / Power Management
The MAX77958 from Maxim Integrated is a robust solution for USB Type-C CC detection and power delivery (PD) protocol implementation. It detects connected accessories or devices by using Type-C CC detection ...

Read more...
What’s in your healthcare monitor?
29 July 2020, Altron Arrow , Power Electronics / Power Management
System designers of portable and wireless medical monitoring devices used for in-home patient health monitoring purposes face daunting design challenges such as thermally- and space-constrained enclosures, as well as being able to transmit data without interference or interruption.

Read more...
Laser diode driver power supplies
29 July 2020, Vepac Electronics , Power Electronics / Power Management
DEI offers a variety of laser diode driver instruments designed with the laser researcher, system designer and scientist in mind. In both bench-top and rack-mount configurations, as well as a variety ...

Read more...
Low-voltage automotive buck converter
29 July 2020, Altron Arrow , Power Electronics / Power Management
Diodes Incorporated announced the AP61100Q, a 5,5 V, 1 A continuous output current, automotive-compliant, synchronous buck converter for point of load (POL) applications. With a fully integrated 110 mΩ ...

Read more...
LDO for noise-sensitive applications
29 July 2020 , Power Electronics / Power Management
Diodes Incorporated announced the AP7353 low dropout (LDO) regulator, which offers a high power supply rejection ratio (PSRR) in a small package, meeting the need for voltage regulation in noise-sensitive, ...

Read more...