38V, 10A Rugged Step-Down µModule Regulator with Fail Safe Load Protection
When any trip threshold is exceeded, the LTM4641's protection circuitry classifies the fault in one of two categories, latching or non-latching. Normal voltage regulation will automatically resume once a non-latching fault such as input undervoltage, bias input undervoltage or input overvoltage has cleared. For latching faults such as an output overvoltage or a second input overvoltage threshold, the system must cycle the input power or supply a logic level signal to the LTM4641 in order to resume normal operation. An overtemperature fault can be classified by the user as a latching or non-latching fault by setting a logic level pin. The LTM4641 can be configured to autonomously restart after latchoff fault conditions have cleared.
The output voltage is user adjustable from 0.6V to 6V with ±1.5% total accuracy over line, load and temperature. Additional features include output current sharing for loads requiring more than 10A, externally adjustable soft start, output overcurrent protection, switching frequency and output voltage tracking.
The LTM4641 is packaged a thermally efficient 15mm x 15mm x 5.01mm RoHS compliant BGA with guaranteed operation over the -40°C to +125°C (E grade and I grade) or -55°C to +125°C (mp grade) internal temperature range. Pricing starts at $25.95 each for 1,000-piece quantities. The LTM4641 is available for immediate delivery from stock. For more information, visit www.linear.com/product/LTM4641.
Summary of Features: LTM4641
±2.7% Accurate Customizable Overtemperature, Overvoltage & Undervoltage Fault Thresholds with Active Load Protection
4.5V to 38V Input Voltage Range
0.6V to 6V Output Voltage Range with ±1.5% Accuracy over Line, Load & Temperature
Output Current up to 10A
Supports Paralleling of Outputs
Compact, Thermally Enhanced
15mm x 15mm x 5.01mm BGA Package
LINEAR TECHNOLOGY GmbH
Linear Technology Corporation, a member of the S&P 500, has been designing, manufacturing and marketing a broad line of high performance analog integrated circuits for major companies worldwide for three decades. The Company's products provide an essential bridge between our analog world and the digital electronics in communications, networking, industrial, automotive, computer, medical, instrumentation, consumer, and military and aerospace systems. Linear Technology produces power management, data conversion, signal conditioning, RF and interface ICs, µModule® subsystems, and wireless sensor network products. For more information, visit www.linear.com.