Analog Devices / Maxim Integrated MAX17548 Synchronous Step-Down Controllers
Analog Devices MAX17548 Synchronous Step-Down Controllers are dual-output controllers that drive nMOSFETs. The MAX17548 features a peak-current-mode and constant frequency architecture that allows it to operate up to 2.2MHz. The controllers have a wide range of operations with 4.5-42V input voltage and 0.8V to 24V output voltage.
The devices can be configured as two single-phase, independent 10A power supplies or as a dual-phase, single-output 20A power supply. The Analog Devices MAX17548 also provides the ability to run two controllers 180° out-of-phase to reduce the power loss and noise due to the input-capacitor ESR.
Features
- Wide Range of Operation
- Wide 4.5V to 42V Input Voltage Range
- Wide 0.8V to 24V Output Voltage Range
- RSENSE or Inductor DCR Current Sensing
- Selectable In-Phase or 180° Out-of-Phase Operation
- Adjustable 100kHz to 2.2MHz Switching Frequency
- Independent Enable and PGOOD
- Available in a Lead(Pb)-Free 32-Pin, 5x5mm TQFN-EP Package
- Enhances Power Efficiency
- Low-Impedance Gate Drives for High Efficiency
- DCM Operation at Light Loads
- Auxiliary Bootstrap LDO
- Operates Reliably in Adverse Industrial Environments
- Independent Adjustable Soft-Start or Tracking
- Current Foldback Limits MOSFET Heat Dissipation During a Short-Circuit Condition
- Operates Over the -40°C to +125°C Temperature Range
- Output Overvoltage and Overtemperature Protections
Applications
- Industrial Power Supplies
- Distributed DC Power Systems
- Motion Control
- Programmable Logic Controllers
- Computerized Numerical Control
Block Diagram
Evaluation Kit
Analog Devices / Maxim Integrated MAX17548EVKIT Evaluation Kit
Used to evaluate the MAX17548 devices and provides 5V/5A and 3.3V/10A at the outputs.
Publicado: 2017-10-04
| Actualizado: 2023-04-13