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Small 9mm × 11.25mm, Dual 4A µModule Regulator Operates from Wide 2.375V to 20V Input Voltage Range

Apr 26 2016 - MILPITAS, CA
  • Linear Technology Corporation introduces the LTM4642, a dual 4A or single 8A step-down µModule® (power module) regulator in a compact 9mm × 11.25mm × 4.92mm BGA package. The device operates from a wide input voltage range of 2.375V to 20V and regulates two output voltages adjustable from 0.6V to 5.5V. Each output is a synchronous buck converter operating at high efficiency. The operating efficiencies for delivering full current at a 1.8V load from input supplies of 12V, 5V and 3.3V are 88%, 91% and 93%, respectively.


    The two 4A outputs can be current shared as a single 8A output with precision voltage regulation of ±1.5% over line and load variations and is guaranteed from –40°C to 125°C. The LTM4642’s small footprint, high efficiency and dual-regulator design enables system designers to reduce PCB area or fit this point-of-load regulator into tight spaces on densely populated boards. Applications for the LTM4642 include industrial, robotic, medical, instrumentation and telecom systems.


    The LTM4642 can be synchronized to a supplied clock with a frequency ranging from 600kHz to 1.4MHz. Output ripple voltage is reduced because of the device’s 180° out-of-phase operation. Low package thermal impedance enables full load current up to 95°C ambient temperature with no airflow and 100°C with 200LFM when converting 12V to a 1V output.


    The LTM4642 operates from –40°C to 125°C. The 1,000-piece price is $19.43 each. For more information, visit www.linear.com/products/LTM4642.


    Summary of Features: LTM4642


    • Small Footprint Dual 4A or Single 8A Complete Point-of-Load Regulator
    • Wide 4.5V to 20V Input; 2.375V with 5V Bias
    • High Precision ±1.5% 0.6V-5.5V Output Voltage
    • High Efficiency Synchronous Regulator
    • Out-of-Phase Operation with 600kHz to 1.4MHz Synchronization Frequency
    • 9mm × 11.25mm × 4.92mm BGA Package

    Small Footprint Dual 4A µModule Regulator

    LTM4642 PR Image

    Pricing shown is for budgetary use only and may differ due to local duties, taxes, fees and exchange rates.

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