Dépêches
Microchip Introduces 150 mA, 16V Voltage Regulators With Short-Circuit Current Foldback and a High PSRR of 70 dB
Dépèche transmise le 30 août 2011 par Business Wire

Microchip Introduces 150 mA, 16V Voltage Regulators With Short-Circuit Current Foldback and a High PSRR of 70 dB
CHANDLER, Ariz.--(BUSINESS WIRE)--Microchip Technology Inc. (NASDAQ: MCHP), a leading provider of microcontroller, analog and Flash-IP solutions, today announced the MCP1754/MCP1754S low dropout regulators (LDOs). The devices feature a high PSRR of 70 dB at 1 kHz (typical), and a maximum output current of 150 mA at +125 degrees Celsius junction temperature. Both LDOs offer a high input voltage of 16V and an output voltage range of 1.8V to 5.5V, with standard output voltages of 2V, 2.5V, 2.8V, 3V, 3.3V, 4V and 5V, and output voltage tolerances of +/-2.0 percent over the entire temperature range. The MCP1754 provides enhanced features, such as a shutdown input signal and a power-good output signal, while the MCP1754S is the baseline version of the device. These LDOs are ideal for electronic circuits, such as in GFCI and AFCI circuit-breaker designs, and in the automotive, medical and consumer electronics markets, such as in automotive power adapters, cell phones and medical devices.
“The MCP1754/MCP1754S voltage regulators typically deliver 70 dB of ripple rejection at 1 kHz, making the devices ideal for AC-sensitive applications, such as GFCI and AFCI circuit-breaker designs”
Designers need a high-PSRR LDO to reject power-supply noise in sensitive electronic circuits, and the MCP1754/MCP1754S LDOs meet that need. The devices’ wide range of output-voltage options gives design engineers added flexibility, and their small package size takes up less space on the board, while reducing cost. Additionally, the LDOs can be used to power Microchip’s portfolio of PIC® microcontrollers, as well as other MCUs.
“The MCP1754/MCP1754S voltage regulators typically deliver 70 dB of ripple rejection at 1 kHz, making the devices ideal for AC-sensitive applications, such as GFCI and AFCI circuit-breaker designs,” said Bryan J. Liddiard, vice president of marketing with Microchip’s Analog and Interface Products Division. “With the addition of these new devices to Microchip’s broad line of LDOs, our customers now have even more options to meet their needs.”
Packaging, Pricing and Availability
The MCP1754/MCP1754S LDOs are available in 5-pin SOT-23, 3-lead SOT-23a and 3-lead SOT-89 packages, for $.042 each in 10,000-unit quantities. The devices are also available in 5-lead SOT-223 and 3-lead SOT-223 packages, for $0.47 each, and in 8-lead 2 mm x 3 mm DFN packages, for $0.47 each, all in 10,000-unit quantities.
Samples are available today, at http://www.microchip.com/get/4XTF. Volume-production quantities can be ordered today at http://www.microchip.com/get/TN09. For additional information, contact any Microchip sales representative or authorized worldwide distributor, or visit Microchip’s website at http://www.microchip.com/get/TTJ6. To purchase products mentioned in this press release, go to microchipDIRECT or contact one of Microchip’s authorized distribution partners.
About Microchip Technology
Microchip Technology Inc. (NASDAQ: MCHP) is a leading provider of microcontroller, analog and Flash-IP solutions, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide. Headquartered in Chandler, Arizona, Microchip offers outstanding technical support along with dependable delivery and quality. For more information, visit the Microchip website at http://www.microchip.com/get/4EMQ.
Note: The Microchip name and logo, and PIC are registered trademarks of Microchip Technology Inc. in the USA and other countries. All other trademarks mentioned herein are the property of their respective companies.
High-res Photo and Diagram Available Through Flickr or Editorial Contact (feel free to publish):
- Photo: http://www.microchip.com/get/BHM0
- Diagram: http://www.microchip.com/get/8LAB
Tags / Keywords: Microchip, MCHP, LDO, voltage regulator, PSRR, current foldback, shutdown
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