Multifunction LDO leads to cost-effective designs

Sept. 27, 2006
A 1.5A LDO developed by Microchip is claimed as the first to incorporate shutdown, power good, programmable power-good delay, and bond-wire compensation on one chip.

A 1.5A LDO developed by Microchip is claimed as the first to incorporate shutdown, power good, programmable power-good delay, and bond-wire compensation on one chip. The efficient MCP1727 is an adjustable-output, low-power LDO that comes in small, thermally capable packages (8-pin SOIC or 3 mm × 3 mm DFN).

The combination of high output current (1.5A) and low output voltage (down to 0.8V) suits the MCP1727 for various power-supply applications, such as high-performance embedded processors.

The device offers a dropout voltage of only 300mV (typical) at full load current, and a quiescent current of just 140µA (typical). In addition, the MCP1727 offers a shutdown feature that allows it to be enabled and disabled by system logic. More efficient and cost-effective designs are possible due to the fact that the device is stable when using a ceramic output capacitor.

The MCP1727 also has an output-voltage sense pin that compensates for output-voltage changes due to losses in the output bond wire, resulting in faster, more accurate output-voltage regulation. The power-good output with user-programmable delay gives designers flexibility in power scheduling.

Sponsored Recommendations

Highly Integrated 20A Digital Power Module for High Current Applications

March 20, 2024
Renesas latest power module delivers the highest efficiency (up to 94% peak) and fast time-to-market solution in an extremely small footprint. The RRM12120 is ideal for space...

Empowering Innovation: Your Power Partner for Tomorrow's Challenges

March 20, 2024
Discover how innovation, quality, and reliability are embedded into every aspect of Renesas' power products.

Article: Meeting the challenges of power conversion in e-bikes

March 18, 2024
Managing electrical noise in a compact and lightweight vehicle is a perpetual obstacle

Power modules provide high-efficiency conversion between 400V and 800V systems for electric vehicles

March 18, 2024
Porsche, Hyundai and GMC all are converting 400 – 800V today in very different ways. Learn more about how power modules stack up to these discrete designs.

Comments

To join the conversation, and become an exclusive member of Electronic Design, create an account today!