Power Electronics / Power Management


Buck converter with low quiescent current

31 July 2019 Power Electronics / Power Management

Texas Instruments introduced an ultra-low-power switching regulator with what it claims is the industry’s lowest operating quiescent current (IQ) at 60 nA. The TPS62840 synchronous step-down converter delivers very high light-load efficiency of 80% at 1 µA load, which can enable designers to extend the battery life of their systems, or use fewer or smaller batteries to shrink their overall power supply solution size and reduce cost.

The device’s wide input voltage range of 1,8 V to 6,5 V supports a variety of battery chemistries and configurations. These features, plus its selectable functions, enable the TPS62840 to help engineers solve critical design challenges in many battery-powered, always-on industrial and personal electronics applications.

Selectable mode and stop functions improve noise performance and reduce signal distortion. These benefits can help lower the solution cost because designers can achieve system requirements without using more expensive precision signal-chain components, sensors or radio solutions to perform the same functions.

The mode pin allows for continuous conduction mode, also called forced pulse-width modulation mode, to improve ripple or noise performance and lessen the impact on transmissions in sensitive radio-frequency applications. The stop pin turns off all switching to reduce EMI or ripple, and minimises distortions passed to precision signal-chain, measurement, sensors or wireless connectivity components.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

DC-DC converters for railway applications
29 January 2020, Conical Technologies , Power Electronics / Power Management
Traco Power announced the release of the latest addition to its railway series converters. The THN 10WIR series is a family of ruggedised 10 Watt DC-DC converters for the highest reliability in harsh ...

Read more...
Highly robust IGBT gate driver
29 January 2020 , Power Electronics / Power Management
Power Integrations announced the launch of its automotive-qualified SID1181KQ SCALE-iDriver gate driver for 750 V-rated IGBTs. The new part expands the company’s range of auto-qualified driver ICs, following ...

Read more...
Power management/UPS HAT for Raspberry Pi
29 January 2020, iCorp Technologies , Power Electronics / Power Management
This Raspberry Pi power management and UPS HAT, made by Sixfab, ensures that the device is powered up and that the user has full control over its power supply. The uninterruptible power supply automatically ...

Read more...
V2X: The future of vehicle communications
29 January 2020, Avnet South Africa , Editor's Choice, Telecoms, Datacoms, Wireless, IoT
A recent report by Juniper Research forecasts that more than 62 million vehicles will be capable of vehicle-to-vehicle communication by 2023; up from just over 1,1 million in 2019.

Read more...
STM32 system-on-chip for LoRa
29 January 2020, Avnet South Africa , Telecoms, Datacoms, Wireless, IoT
Powering the search for sustainability through smart infrastructure and logistics, smart industry and smart living, STMicroelectronics has revealed the world’s first LoRa system-on-chip (SoC) for connecting ...

Read more...
EERAM memory solutions retain data at power loss
29 January 2020, Avnet South Africa , DSP, Micros & Memory
Microchip Technology announced a new family of Serial Peripheral Interface (SPI) EERAM memory products that offers system designers up to 25% cost savings over the current serial non-volatile ram (NVRAM) ...

Read more...
Brushless DC motor driver
29 January 2020, NuVision Electronics , Power Electronics / Power Management
The MP6650 from Monolithic Power Systems is a single-phase, brushless DC motor driver with integrated power MOSFETs and a Hall-effect sensor. The device drives single-phase brushless DC fan motors with ...

Read more...
4-switch buck-boost controller
29 January 2020, Altron Arrow , Power Electronics / Power Management
A common DC-DC converter problem is generating a regulated voltage when the input voltage can be above, below, or equal to the output - that is, the converter must perform both step-up and step-down functions. ...

Read more...
CCM/DCM flyback ideal diode
29 January 2020, NuVision Electronics , Power Electronics / Power Management
The MP9989, made by Monolothic Power Systems, is a fast turn-off, intelligent rectifier for flyback converters that integrates a 100 V MOSFET. It can replace a diode rectifier for higher efficiency and ...

Read more...
Low-noise electronic circuitry enables low-intensity light detection
29 January 2020, Vepac Electronics , Editor's Choice, Power Electronics / Power Management
When it comes to low-intensity light detection, performance requirements often lead to selecting devices with greater sensitivity than common photodiodes or even charge coupled devices (CCDs).

Read more...