LTM4668IY#PBF

LTM4668IY#PBF 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 up to 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, the LTM4668 supports an output voltage range of 0.6V to 1.8V. Only bulk input and output capacitors are needed. The device 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. Applications include telecom, networking and industrial equipment, multi-rail point of load regulation, FPGAs, DSPs and ASICs application.

• Wide input voltage range from 2.7V to 17V, output voltage range from 0.6V to 1.8V
• ±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
• Over voltage, current and temperature protection
• Input supply current is 0.2A typical at (VIN = 12V, VOUT = 1.5V, IOUT = 1.2A)
• Turn-on time is 0.8ms typical at (COUT = 47µF ceramic, VIN = 12V, VOUT = 1.5V, no load)
• Output current limit is 2A typical at (VIN = 12V, VOUT = 1.5V)
• Load regulation accuracy is 0.1% typical at (VOUT = 1.5V, IOUT = 0A to 1.2A)
• Operating junction temperature range from -40°C to 125°C, 49-pin BGA package

注释

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