Dual ULDO Voltage Regulator suits portable applications.

Press Release Summary:



Offered in 2 x 2 mm, 8-pin leadless MLF® package, MIC5330 ultra-low dropout (ULDO(TM)) voltage linear regulator integrates 2 independently controlled LDOs that require 1 uF ceramic capacitors. Both feature quiescent current of 75 µA per output, turn-on time of 30 µsec, and current limit as well as thermal shutdown protection. With over 70 dB power supply ripple rejection, IC features ultra low dropout voltage of 75 mV @ 300 mA and delivers 150 mA/mm².



Original Press Release:



Micrel Expands Family of Tiny Dual LDOs Aimed at Portable and RF Applications



SAN JOSE, Calif., June 20 -- Micrel Inc., (NASDAQ:MCRL), an industry leader in analog, high bandwidth communications and Ethernet IC solutions, today launched a new dual ultra-low dropout voltage (ULDO(TM)) linear regulator. The MIC5330 is part of a new family of dual LDOs offering ultra low dropout voltage of 75mV@300mA, more than 70db power supply ripple rejection (PSRR) and ultra low output noise. The part is offered in a tiny 2 mm x 2 mm 8 pin leadless MLF(R) package making it ideal for today's most demanding portable applications including cellular phone RF power, camera modules, imaging sensors for digital still and video cameras, PDAs, portable media players (PMP) and PC cameras. The IC is currently available in volume, with pricing starting at $0.66 for 1K quantity.

"Current requirements in today's portable equipment are on the rise as performance and functionality increase," noted Ralf Muenster, Micrel's Director of Marketing for Power Products. "Micrel's new MIC5330 with its exceptional thermal performance, diminutive size and high current capability, delivers an impressive 150mA/mm2 enabling small form factor designs. The device also offers the industry's lowest dropout for a 300mA dual LDO, allowing longer battery life and high PSRR under low input to output voltage conditions encountered when powering RF circuitry from a Li-Ion battery."

The MIC5330 integrates two independently-controlled, high performance LDOs that offer exceptional transient performance while requiring only very small and inexpensive 1 uF ceramic capacitors. Both LDOs feature a low quiescent current of 75 uA per output, a fast turn-on time of 30 usec, current limit and thermal shutdown protection, and can operate from -40 deg C to 125 deg C.

About Micrel, Inc.

Micrel Inc., is a leading global manufacturer of IC solutions for the worldwide analog, Ethernet and high bandwidth markets. The Company's products include advanced mixed-signal, analog and power semiconductors; high performance communication, clock management, Ethernet switch and physical layer transceiver ICs. Company customers include leading manufacturers of enterprise, consumer, industrial, mobile, telecommunications, automotive, and computer products. Corporation headquarters and state-of-the-art wafer fabrication facilities are located in San Jose, CA with regional sales and support offices and advanced technology design centers situated throughout the Americas, Europe and Asia. In addition, the Company maintains an extensive network of distributors and reps worldwide. Web: http://www.micrel.com/.

NOTE: MLF is a registered trademark of Amkor Technology. LOWQ is a trademark of Micrel, Inc.

CONTACT: Julieanne DiBene, Marketing Communications of Micrel, Inc., +1-408-474-1276, or Julie.DiBene@Micrel.com

All Topics