Linear Technology has announced the LTC3260 and LTC3261 high-voltage charge pumps. The LTC3261 is an inverting charge pump that can deliver up to 100 mA of output current.
The LTC3260 has the same charge pump as the LTC3261, but also includes both positive and negative LDO regulators that can source up to 50 mA output current each. The negative LDO post regulator is powered from the inverting charge pump output. The positive and negative LDO output voltages can be adjusted down to 1,2 V and -1,2 V, respectively, using external resistor dividers.
Both devices operate over a wide 4,5 V to 32 V input voltage range. Their internal charge pumps function in either low-quiescent-current burst mode or low-noise, constant-frequency mode at up to 88% efficiency.
In burst mode operation the charge pump output regulates to –0,94 · VIN. In this mode, the LTC3261 draws only 60 A quiescent current, while the LTC3260 draws only 100 A with both LDOs enabled.
Constant-frequency operation offers low input and output ripple; in this mode the charge pump produces an output equal to –VIN and operates at a fixed 500 kHz or to a programmed value between 50 kHz and 500 kHz using an external resistor.
Other IC features include low external parts count with ceramic capacitor stability, soft-start circuitry to prevent excessive current flow during startup, plus short circuit and thermal protection. The chips are well suited for a variety of applications such as low-noise bipolar/inverting supplies from a high-voltage input, industrial/instrumentation low-noise bias generators, portable medical equipment and automotive infotainment systems.
The LTC3260 is available in a low-profile (0,75 mm) 3 x 4 mm 14-lead DFN package and a 16-lead MSOP package, both with a backside thermal pad. The LTC3261 is available in a 12-lead MSOP package with backside thermal pad. For both devices, the E- and I-grade operating junction temperature is
Rugged railway-grade DC-DC power modules iCorp Technologies
Power Electronics / Power Management
iCorp Technologies has introduced the AIPUPOWER ZCD100 and ZCD150 Series, a family of rugged DC-DC converters designed to meet the demanding electrical and environmental requirements of railway and transportation systems.
Read more...NXP has expanded its MCX A Series Altron Arrow
AI & ML
NXP has significantly expanded its MCX A Series of Arm Cortex-M33 microcontrollers, doubling the portfolio with six new families aimed at industrial and IoT edge applications.
Read more...Four-quadrant regenerative grid simulator Conical Technologies
Power Electronics / Power Management
The IT7900EP series high-performance regenerative grid simulator from ITECH is a full four-quadrant AC grid simulator capable of both sourcing and sinking power.
Read more...90 W PSU with 150% boost capability Brabek
Power Electronics / Power Management
RECOM’s cost effective REFIN2U-S90/CL DIN rail AC/DC boasts a 90 W rating with a boost capability of 150% for 4,5 seconds to allow for surge loads.
Read more...Exploring Bluetooth Channel Sounding Altron Arrow
Telecoms, Datacoms, Wireless, IoT
NXP has enabled BCS on the MCX W72 multi-protocol wireless MCU, which supports Bluetooth Low Energy 6.0, Thread, Zigbee, and Matter.
Read more...Standalone USB PD controller Future Electronics
Power Electronics / Power Management
The STUSB4531 from STMicroelectronics is a standalone USB Power Delivery sink controller designed to streamline the implementation of USB-C power negotiation in sink devices without requiring a full software stack on a host microcontroller.
Read more...Dual-band Wi-Fi 6 companion module Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The SimpleLink Wi-Fi CC33xx family of devices from Texas Instruments are dual-band Wi-Fi 6 companion modules enabling engineers to connect more applications with confidence.
Read more...MIL-Spec DC-DC power converters Vepac Electronics
Power Electronics / Power Management
PowerGood has introduced a range of 15 W to 600 W military DC-DC power converters engineered for mission critical defence 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