Triple output switching power supply controller
26 March 2003
Power Electronics / Power Management
A DC-to-DC switching power supply controller that combines the functions of three PWM and PSM converter ICs in a single device was launched by Vishay's Siliconix subsidiary. Aimed at consumer electronic appliances, the Si9139 takes a 4,5 to 30 V input voltage and converts it to three individual, tightly regulated DC-to-DC converter outputs, and one 5 V output. With 95% power conversion efficiency, the Si9139 integrates two main synchronous step-down controllers operating at up to 6 A, each with seven fixed outputs from 1,5 to 3,3 V, and an adjustable step-up/down controller whose output can be set to any value between 1,24 and 20 V with an external resistor divider. This adjustable capability on the third output at 500 mA is claimed to be an industry first. An on-board 5 V, 30 mA linear regulator provides an effective fourth output. The Si9139 in 28-pin SSOP has a 50 W power rating and ±3% total regulation by line, load, and temperature.
www.vishay.com
Further reading:
The role of bidirectional charging in the evolving energy landscape
Avnet Silica
Power Electronics / Power Management
As reliance on renewable sources like wind and solar continues to grow, the need for efficient energy flow and storage solutions has become more critical than ever.
Read more...
How to calculate a buck converter’s inductance
Power Electronics / Power Management
In the buck circuit, the inductor design is a key element that is closely related to system efficiency, the output voltage ripple, and loop stability.
Read more...
High-current EMI filters
Accutronics
Power Electronics / Power Management
TDK has introduced 20 and 40 A, 80 V DC board-mount EMI filters, reducing differential mode conducted emissions for switching power supplies with high input current requirements.
Read more...
Isolated SMD DC-DC converters
iCorp Technologies
Power Electronics / Power Management
MinMax has launched a series of isolated SMD DC-DC converters, the MSU01 series delivering 1 W, while the MSU02 series offers 2 W output.
Read more...
Next-gen power meter
Electrocomp Express
Power Electronics / Power Management
The VT-PWR-LV is a next-gen Vista Touch power meter from Trumeter for single, split, and three-phase systems.
Read more...
Advanced PMIC for high-performance AI applications
ASIC Design Services
Power Electronics / Power Management
Microchip Technology has announced the MCP16701, a Power Management Integrated Circuit (PMIC) designed to meet the needs of high-performance MPU and FPGA designers.
Read more...
New SiC power MOSFET
Future Electronics
Power Electronics / Power Management
STMicroelectronics’ SCT012H90G3AG is a robust, automotive-grade SiC MOSFET, engineered for demanding power electronics, featuring a 900?V drain-source voltage and exceptionally low on-resistance of 12?mO at 60?A.
Read more...
Fundamental motor control design challenges and solutions
Power Electronics / Power Management
Mouser Electronics has announced a new eBook in collaboration with Qorvo, featuring industry experts providing key insights into methods, power efficiency and integration solutions available for motor control applications.
Read more...
Power management IC for battery products
Power Electronics / Power Management
The nPM1304 PMIC complements Nordic’s nPM1300 PMIC with a highly integrated, ultra-low power solution and precision fuel gauging for small size battery applications.
Read more...
Powering Innovation eBook: Changing what’s possible
Power Electronics / Power Management
This exclusive read, entitled ‘Changing what’s Possible,’ delves into how power dense Vicor modules enable many world-changing innovations across various sectors.
Read more...
printer friendly version