MAX17545
EVALUATION KIT AVAILABLE
4.5V–42V, 1.7A, High-Efficiency, Synchronous Step-Down DC-DC Converter
With Internal ...
MAX17545
EVALUATION KIT AVAILABLE
4.5V–42V, 1.7A, High-Efficiency, Synchronous Step-Down DC-DC Converter
With Internal Compensation
General Description
The MAX17545 high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over 4.5V to 42V input. The converter can deliver up to 1.7A and generates output voltages from 0.9V up to 0.9 x VIN. The feedback (FB) voltage is accurate to within ±1.1% over -40°C to +125°C.
The MAX17545 uses peak-current-mode control. The device can be operated in pulse-width modulation (PWM), pulse-frequency modulation (PFM), or discontinuous conduction mode (DCM) control schemes.
The device is available in a 20-pin (4mm x 4mm) TQFN package. Simulation models are available.
Applications
●● Industrial Power Supplies
●● Distributed Supply Regulation
●● High-Voltage Single-Board Systems
●● Base Station Power Supply
●● General-Purpose Point-of-Load
For related parts and recommended products to use with this part, refer to www.maximintegrated.com/MAX17545.related.
Features and Benefits
●● Reduces External Components and Total Cost No
Schottky—Synchronous Operation Internal Compensation for Any Output Voltage Built-In Soft-Start All-Ceramic Capacitors, Compact Layout
●● Reduces Number of DC-DC
Regulators to Stock Wide 4.5V to 42V Input Adjustable 0.9V to 0.9 x VIN Output 100kHz to 2.2MHz Adjustable Switching Frequency with External Synchronization
●● Reduces Power Dissipation Peak Efficie...