Analog DevicesDC2535ACartes et kits de développement de gestion de la puissance
LT8653S DC to DC Converter and Switching Regulator Chip 4.8VDC to 5.2VDC Output Demonstration Circuit
This requires additional EMI filters to the existing circuitry, cost to PCB revision and delay time to market in order to pass the CISPR EMI compliance. The LT865xS family allows designs to simplify PCB design, reduce design cycle time and meeting CISPR EMI compliance with Silent Switcher 2 Architecture while maintaining high efficiency performance across load range in a compact solution.
The LT8652S, from Analog Devices, is a dual step-down regulator that delivers up to 8.5A of continuous current from both channels and supports loads up to 12A from each channel. The LT8652S uses second generation Silent Switcher technology including integrated bypass capacitors to deliver a high frequency, high efficiency, small solution with excellent EMI performance. The LT8652S is ideal for noise sensitive applications such as PLLs and high bandwidth data and communications systems.
The fast, clean, low overshoot switching edges enable high efficiency operation even at high switching frequencies, enabling a wide control loop bandwidth for fast transient response. Output current monitoring and limiting allows inductors to be selected for the maximum output current in a given application. Differential output voltage sensing provides accurate voltage regulation at the point of load for high current applications. The two channels can be combined to deliver 17A, and two LT8652S ICs can be combined for a 4-phase, 34A supply.
Silent Switcher®2 family reduces radiated EMI on any PCB
- • Eliminates PCB layout sensitivity
- • Ultra Low Quiescent Burst Mode minimizes output ripple voltage
- • Up to 8.5A output from each channel simultaneously
Key Features and Benefits
- • Silent Switcher 2 architecture: Internal Bypass Capacitors reduce radiated EMI
- • Ultra Low Quiescent Current Burst Mode Operation: High efficiency at light load and minimize low output Ripple Voltage (10mVpp)
- • Small 4x7mm 36 pin LQFN with dual 8.5A output or 17A combined
Applications
- • Communications: Communication infrastructure applications
- • General Purpose: point of load for server and core power
- • Industrial Automation: Building and machine automation
Block Diagrams and Tables
Related Evaluation Board
| Compliant | |
| EAR99 | |
| Active | |
| 8473.30.11.80 | |
| Automotive | No |
| PPAP | No |
| EDA / CAD Models |