High-Current, High-Voltage and High-Performance Applications Benefit From Microchip’s New LDO Voltage-Regulator Family

  High-Current, High-Voltage and High-Performance Applications Benefit From
  Microchip’s New LDO Voltage-Regulator Family

LDOs Provide High Output Current of 300 mA, High Input Voltage of 16V and High
Noise Rejection of 70 dB With Industry’s Best Combination of Performance, Size
                                  and Price

Business Wire

CHANDLER, Ariz. -- February 25, 2013

Microchip Technology Inc. (NASDAQ: MCHP), a leading provider of
microcontroller, mixed-signal, analog and Flash-IP solutions, today announced
the MCP1755 and MCP1755S high-performance, high-input-voltage and
high-output-current family of CMOS Low-Dropout (LDO) voltage regulators. These
LDOs can accept a wide input voltage range of 3.6-16V and deliver an output
current of 300 mA at output voltages of 1.8-5.5V, while consuming only 68 µA
of quiescent current (typical). Additionally, the MCP1755/1755S LDOs have a
shutdown pin, enabling them to consume less than 0.1 µA (typical) during
shutdown mode, which extends battery lifetimes. To conserve space, the LDOs
are offered in SOT and 2x3 mm DFN packages. These features provide designers
with a high degree of flexibility for an extremely broad range of
applications, such as medical, mobile devices and LED lighting controllers.

Many of today’s electronic designs need to operate in environments that
contain high levels of electrical and magnetic noise. Noise is generated when
switching transients and RF signals get coupled onto power-supply lines.
Applications such as GFCI and AFCI circuit breakers, wireless devices,
automotive-aftermarket electronics, and medical devices are sensitive to this
power-supply noise. The MCP1755 and MCP1755S LDOs have a high Power Supply
Rejection Ratio (PSRR) of 70 dB @ 1 kHz, which filters input noise and
provides significantly cleaner output voltages, making them well suited for
noise-sensitive applications.

“The MCP1755/S LDOs are ideal for designs with 9V and 12V power-supply rails,
and their higher output current expands our high-performance LDO portfolio
into a broader range of applications,” said Bryan J. Liddiard, marketing vice
president of Microchip’s Analog & Interface Products Division. “Additionally,
the high PSRR of these voltage regulators is great for applications that
require very clean supply voltages.”

Pricing and Availability

Both of the new LDOs are available today for sampling and volume production,
starting at $0.45 each in 5,000-unit quantities. The MCP1755S is offered in
3-pin SOT223 and 8-pin, 2x3 mm DFN packages. The MCP1755 is available in 5-pin
SOT223 and SOT23 packages, as well as the 8-pin, 2x3 mm DFN. For additional
information, contact any Microchip sales representative or authorized
worldwide distributor, or visit Microchip’s Web site at
http://www.microchip.com/get/LMUT. To purchase products mentioned in this
press release, go to microchipDIRECT or contact one of Microchip’s authorized
distribution partners.


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About Microchip Technology

Microchip Technology Inc. (NASDAQ: MCHP) is a leading provider of
microcontroller, mixed-signal, 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/TGB3.

Note: The Microchip name and logo is a registered trademark of Microchip
Technology Incorporated in the U.S.A. and other countries. All other
trademarks mentioned herein are the property of their respective companies.

Tags / Keywords: Microchip, MCHP, LDO, Voltage Regulator, PSRR, Shutdown, High
Input Voltage, High PSRR, High Output Current


Microchip Technology Inc.
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