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LT7171RV: 20A, 16V, Single or Dual Phase, Silent Switching Buck Regulator with Digital Power System Management 

Overview: 

The LT7171RV is a monolithic, multi-phase, DC/DC synchronous step-down regulator that provides up to 20A of continuous output current. Controlled on-time valley current mode control with a typical minimum on-time of 25ns enables high switching frequency (fSW) at low output voltages (VOUT), excellent transient response, and a small overall solution size.

Model No.: LT7171RV 

Package: LQFN-30 

Type: Multiphase DC/DC Synchronous Buck Regulator 

Applications: 

- Communications, Storage, and Industrial Systems 

- Data Centres and SSD's 

LT7171RV -... Product Features: 

Silent Switcher® Architecture: Enabling a compact, efficient, low EMI solution 

PMBus/I2C serial interface 

Telemetry readback including VOUT, IOUT, VIN, chip temperature and faults 

Programmable voltage, current limit, sequencing, soft start and stop, under- and over-voltage, phase, frequency (up to 4MHz) and loopback compensation 

Integrated triple programmable NVM 

Selectable key parameter VOUT via resistors Resistor Selectable Key Parameters 

VOUT Setpoint Range: 0.4V to 5.5V 

VOUT Accuracy: ±0.25%, 0.6V ≤ VOUT ≤ 1.375V 

Multi-phase Load Splitting, up to Four Devices 

Differential Remote VOUT Sensing 

Fast Transient Response 

Wide VIN Supply Range: Down to 2.9V or 1.5V with EXTVCC 

Programmable, Synchronisable: 400kHz to 4MHz 30-lead (3.5 MHz), 1.5 V, 4MHz, 4MHz. 4MHz 

30-lead (3.5mm × 4mm) LQFN

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