LTM4668EY#PBF

LTM4668 is a quad DC/DC step-down µModule (micromodule) regulator with 1.2A DC current per output. Outputs can be paralleled in an array for upto 4.8A capability. Included in the package are the switching controllers, power FETs, inductors and support components. Operating over an input voltage range of 2.7V to 17V, this device supports an output voltage range of 0.6V to 1.8V. Only bulk input and output capacitors are needed. It supports frequency synchronization, poly-phase operation, selectable Burst Mode operation, 100% duty cycle and low IQ operation. Its high switching frequency and a current mode architecture enables a very fast transient response to line and load changes without sacrificing stability. Fault protection features include overvoltage, overcurrent and overtemperature protection. It is used in applications such as telecom, networking and industrial equipment, multi-rail point of load regulation, FPGAs, DSPs and ASICs application etc.

• ±1.5% total output voltage regulation
• 100% duty-cycle operation
• Current mode control, fast transient response
• External frequency synchronization, selectable Burst Mode® operation
• Power good indicator
• Pin compatible with LTM4668A (0.6V to 5.5V output, 2.25MHz)
• Input supply current is 0.2A typ at (VIN = 12V, VOUT = 1.5V, IOUT = 1.2A)
• Oscillator frequency is 1MHz typ at ( TA = 25°C, VIN = 12V)
• Output ripple voltage is 7mV typ at (IOUT = 0A, COUT = 47µF ceramic VIN = 12V, VOUT = 1.5V)
• Operating temperature range from -40°C to 125°C, package style is 49-lead BGA

注释

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