Device converts battery or bus voltages to system requirements
7 May 2003Power Electronics / Power Management
Infrastructure
Microchip Technology offers a 500 mA, DC-to-DC synchronous step-down converter that operates over a multitude of input and output conditions giving designers an efficient method of transforming battery or bus voltage to its system requirements. Used in applications such as cellular phones, PDAs, digital cameras and USB-powered devices, the MCP1601 operates in three modes and automatically switches among them to follow a maximum efficiency curve for the given input/output (I/O) condition.
The three operating modes include: pulse width modulation (PWM), for normal medium-to-high load conditions; pulse frequency modulation (PFM), for light or no-load conditions over an extended time; and low-drop-out mode (LDO), for cases when the input approaches the output voltage.
The input voltage ranges from 2,7 to 5,5 V. The output voltage range is from 0,9 V to as high as VIN for the input voltage, while the shutdown current is typically less than 0,1 µA. It has a load current capability of up to 500 mA continuous and will operate at 100% duty cycle or LDO mode when the input voltage approaches the output voltage. The UVLO voltage ranges between 2,4 and 2,7 V.
This DC-to-DC converter in 8-pin MSOP package, also has integrated safety features, such as over-current, over-temperature and under-voltage lockout protection. Additionally, it has an externally-controllable shutdown mechanism to minimise drain current during system inactivity. It can be used as a complete ceramic capacitor solution eliminating the need for larger tantalum caps.
For more information contact Avnet Kopp, 011 809 6100, Memec SA, 021 674 4103, Tempe Technologies, 011 452 0530.
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...Managing stock efficiently and cost-effectively
Asset Management Infrastructure Logistics (Industry)
Rina Redelinghuys, customer services executive at Cquential, a member of the Argility Technology Group, examines stock management across various industries, including retail, fast-moving consumer goods, food and dairy, automotive, apparel, industrial, accessories, paint and chemicals, and pharmaceuticals.
Read more...Upgrade your PCs to improve security
Information Security Infrastructure
Truly secure technology today must be designed to detect and address unusual activity as it happens, wherever it happens, right down to the BIOS and silicon levels.
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...16-channel multicell battery monitor Altron Arrow
Power Electronics / Power Management
The ADBMS6830B is a multicell battery stack monitor that measures up to 16 series-connected battery cells with a lifetime total measurement error of less than 2 mV.
Read more...Reliable redundancy with the Mibbo M3DN Series Conical Technologies
Power Electronics / Power Management
Designed for use with two parallel-connected power supplies, the M3DN Series allows for true redundancy, making it ideal for mission-critical applications.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version