Analog Devices LTC7150S

Description

The LTC®7150S is a high efficiency monolithic synchronousbuck regulator capable of delivering 20A to the load. It usesa phase lockable controlled on-time constant frequency,current mode architecture. PolyPhase operation allowsmultiple LTC7150S regulators to run out-of-phase, whichreduces the amount of input and output capacitors required.The operating supply voltage range is from 3.1V to 20V.The operating frequency is programmable from 400kHzto 3MHz with an external resistor. The high frequency capabilityallows the use of physically smaller inductor andcapacitor sizes. For switching noise sensitive applications,the LTC7150S can be externally synchronized from 400kHzto 3MHz. The PHMODE pin allows the user control of thephase of the outgoing clock signal. The unique constantfrequency/controlled on-time architecture is ideal forhigh step-down ratio applications that operate at highfrequencies while demanding fast transient response.The LTC7150S uses second generation Silent Switchertechnology including integrated bypass capacitors todeliver a highly efficient solution at high frequencies withexcellent EMI performance.

Features

nn Silent Switcher®2 Architecture for Low EMInn VIN Range: 3.1V to 20Vnn VOUT Range: 0.6V to 5.5Vnn Differential VOUT Remote Sensenn Adjustable Frequency: 400kHz to 3MHznn PolyPhase® Operation: Up to 12 Phasesnn Output Tracking and Soft-Startnn Reference Accuracy: 0.6V ±1% Over Temperaturenn Current Mode Operation for Excellent Line and LoadTransient Responsenn Accurate 1.2V Run Pin Thresholdnn Supports Forced Continuous/Discontinuous Modesnn 42-Lead 6mm × 5mm × 1.3mm BGA Package

Typical applications

• Server Power Applications, Distributed Power Systems
• Point of Load Supply for ASIC, FPGA, DSP, μP, etc.

More information

• Datasheet
• IC product information