Power management ICs combine discrete functions to provide compact solutions
7 September 2005Power Electronics / Power Management
Fire & Safety
Microchip has introduced a series of power management ICs that combine a synchronous buck switching regulator, low dropout (LDO) regulator and power-good function into single-chip solutions.
The TC1303/TC1304 and TC1313 include the 500 mA buck regulator, and the 300 mA LDO. The differences between the five devices relate to the power-good function.
* The TC1303A power-good operates on the buck regulator output.
* The TC1303B power-good operates on the LDO output.
* The TC1303C power-good operates on both the buck regulator and LDO outputs.
* The TC1304 power-good is used to provide a power sequencing function.
* The TC1313 does not feature a power-good function.
These devices provide a low-power, low-cost, minimal board space solution for a variety of battery-operated and dual output voltage systems, says the company. Package options include low-profile (0,9 mm) 3 x 3 mm 10-pin DFN package.
The synchronous buck regulator is a very efficient switching DC-DC converter. Under heavier loads, the converter operates in PWM mode at a fixed 2,0 MHz switching frequency. For lighter loads, such as in a standby mode, the converter switches to a power-saving pulse frequency modulation (PFM) mode. The regulator has adjustable and fixed output voltage options.
The low-noise linear LDO regulator supports up to a 300 mA load with a very low dropout voltage (137 mV at 200 mA typical), and is stable with a single, 1,0 µF ceramic capacitor on the output. All the devices offer a number of protection features, including under-voltage lockout, over-temperature protection and output short circuit protection.
The TC1303/TC1313 devices offer individual shutdown controls for the two regulators, while the TC1304 uses the power-good function together with the SHDN pin to provide a power-sequencing function (where, during power-up, the LDO must be operating within specification before the buck regulator is activated, and, during power-down, the buck regulator output is disabled prior to the LDO output).
To help demonstrate the effectiveness of these power management solutions, the company's TC1303BDM-DDBK1 demonstration board is available.
Chemical gas extinguishing system Red G Distributors
Products & Solutions Fire & Safety
Red G Distributors manufactures its FK-5-1-12 chemical gas extinguishing system locally. This clean-agent fire suppression system protects high-value assets from fire and the effects of firefighting, allowing operations to resume quickly with no collateral damage.
Read more...Accelerate development of physical AI deployments Altron Arrow
DSP, Micros & Memory
With Avocado OS now available on the HummingBoard RZ-V2N-
AIoT and SolidSense AIoT V2N from SolidRun, teams can move from prototype to deployed fleet in weeks.
Read more...Setting a new benchmark for high-power DC load testing Conical Technologies
Test & Measurement Power Electronics / Power Management
The new ITECH IT8900G/L high-speed, high-power DC electronic load offers a powerful combination of speed, scalability, precision and high-power density.
Read more...Universal NFC device Altron Arrow
DSP, Micros & Memory
Delivering high-end performance in a compact 4 x 4 mm package, the multipurpose NFC reader from ST Microelectronics, enables the convenience of contactless interaction and features for various end applications.
Read more...Compact direct Time-of-Flight 3D LiDAR module Altron Arrow
AI & ML DSP, Micros & Memory
The VL53L9 from STMicroelectronics is the first direct Time-of-Flight (dToF) 3D LiDAR all-in-one module in ST’s portfolio, offering a resolution of 2,3K zones, wide field of view, on-chip processing, 100 frames per second, and sensing range from 5 centimeters to 9 meters.
Read more...SoC brings scalable edge AI to life Altron Arrow
AI & ML
The NXP i.MX 937 applications processor is optimised for performance without excessive power draw and bridges the gap between entry-level chips and high-end processors.
Read more...Compact direct Time-of-Flight 3D LiDAR module Altron Arrow
Opto-Electronics Electronics Technology AI & ML
The VL53L9 from STMicroelectronics is the first direct Time-of-Flight (dToF) 3D LiDAR all-in-one module in ST’s portfolio, offering a resolution of 2,3K zones, wide field of view, on-chip processing, 100 frames per second, and sensing range from 5 centimeters to 9 meters.
Read more...Nimbus remote fire alarm management Technoswitch Fire Detection & Suppression
Security Services & Risk Management Fire & Safety
Nimbus connects key stakeholders to their fire alarm systems, simplifying compliance with fire safety standards and greatly improving visibility into critical events, thereby augmenting first responder processes that save lives and protect assets.
Read more...Quality batteries are critical for IIoT Uniross Batteries
Power Electronics / Power Management
Batteries intended for use in industrial operations must indeed offer complete reliability under extreme environmental conditions, resistance to vibration and harsh environments.
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