Analog Devices LT7153SP | Demoboard EVAL-LT7153SP-AZ

Description

The demonstration circuit EVAL-LT7153SP-AZ is a 5V, ±25A high efficiency synchronous step-down second-generation Silent Switcher® with spread spectrum frequency modulation featuring the LT®7153SP. The demo board is designed for 0.5V output from a 2.7V to 5V input, capable of delivering ±25A to the load. The LT7153SP is a compact, ultralow emission, high efficiency, and high speed synchronous monolithic step-down switching regulator. The integrated bypass capacitors optimize all the fast current loops and make it easier to minimize EMI/EMC emissions by reducing layout sensitivity. Selectable spread spectrum mode can further improve EMI/EMC performance. The unique constant frequency, controlled on-time, current mode architecture is ideal for high step-down ratio applications that operate at high frequencies while demanding fast transient response.

Features

Silent Switcher®2 ArchitectureUltralow EMIEliminates PCB Layout SensitivityInternal Bypass Caps Reduce Radiated EMISVIN: 2.7V to 5V; PVIN: 1.5V to 5VVOUT: 0.5V to 0.9∙VINAccurate Reference: 0.5V ±0.8% Over TempIntegrated N-MOSFETs: 1.8mΩ/0.7m&Omega15ns Min On-Time: Low Duty Cycle OperationDifferential VOUT Remote SenseConfigurable Fixed Output OptionsProgrammable Load Line (3 settings)Programmable Current Limit (3 settings)Programmable, Synchronizable: 400kHz to 5MHzUser Selectable Discontinuous Mode® (DCM) or Forced Continuous Mode (FCM) OperationControlled TON, Current Mode: Excellent TransientPower Good status, Output Tracking, Clock-OutSupports Spread Spectrum OperationPolyPhase Operation: 2, 3, 4, 6, 8 or 12 Phases36-Lead (4mm x 7mm) Exposed Back LQFN Package

Typical applications

More information

• Datasheet
• IC product information