ANALOG DEVICES LT7170RV-1#TRMPBF Switching Regulator, Synchronous Buck, 4MHz, 2.9 to 16V in, 400mV to 5.5V out, 20A, Surface Mount

LT7170RV-1#TRMPBF is a monolithic DC/DC synchronous stepdown regulator that delivers up to 20A of continuous output current. The quick, clean, low-overshoot switching edges deliver high efficiency while minimizing electromagnetic interference (EMI) emissions. The I²C-based PMBus 1.3-compliant serial interface enables control of device functions while providing telemetry information for system monitoring. The controlled on-time valley current-mode control with 25ns typical minimum on-time enables a high switching frequency (fSW) at a low output voltage (VOUT) with excellent transient response in a small overall solution size. VOUT, fSW, and phase are selectable using external configuration resistors. Settings can also be set via the PMBus interface or stored in the on-chip, three times programmable non-volatile memory (NVM). It is used in applications such as communications, storage, and industrial systems, data centre and solid-state drives.

• Silent Switcher® architecture enables a compact, efficient, low EMI solution
• Telemetry read back includes VOUT, IOUT, VIN, die temperature, and faults
• Integrated three times programmable NVM, key parameters selectable by resistor
• VOUT set point range from 0.4V to 5.5V, differential remote VOUT sense
• Fast transient response, wide VIN supply range down to 2.9V or 1.5V with EXTVCC
• Programmable and synchronizable range from 400KHz to 4MHz
• Minimum on time is 25ns typical at (TA = 25°C)
• Minimum off time is 110ns typical at (TA = 25°C)
• EXTVCC plus VIN quiescent current is 33mA typical at (TA = 25°C)
• Operating temperature range from -40°C to +150°C, 24-lead LQFN package

Notes

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