MAX17572
4.5V–60V, 1A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation
60V Synchronous Buck Converter with Internal FETs Enables High Efficiency and Low Temperature Rise
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Design Solution: Design 20W–30W Power Supplies with Over 90% Efficiency for 24V+ Industrial Automation Systems ›Key Features
Applications/Uses
| VIN (V) (min) | 4.5 |
| VIN (V) (max) | 60 |
| VOUT1 (V) (min) | 0.9 |
| VOUT1 (V) (max) | 54 |
| IOUT1 (A) (max) | 1 |
| Switch Type | Internal |
| Output Adjust. Method | Resistor |
| Synchronous Switching? | Yes |
| Power Good Signal | Yes |
| # DC-DC Outputs | 1 |
| Switching Frequency (kHz) | 2200 |
| Design Tools | EE-Sim |
| Package/Pins | TDFN-CU/12 |
| Budgetary Price (See Notes) | 1.92 |
Simplified Block Diagram
Technical Docs
| Data Sheet | 4.5V–60V, 1A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation | May 17, 2018 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Parameters
| VIN (V) (min) | 4.5 |
| VIN (V) (max) | 60 |
| VOUT1 (V) (min) | 0.9 |
| VOUT1 (V) (max) | 54 |
| IOUT1 (A) (max) | 1 |
| Switch Type | Internal |
| Output Adjust. Method | Resistor |
| Synchronous Switching? | Yes |
| Power Good Signal | Yes |
| # DC-DC Outputs | 1 |
| Switching Frequency (kHz) | 2200 |
| Design Tools | generateDesignEESIMUrl('http://maxim.transim.com/pwm2/designreq/Index?partId=6667', '') |
| Package/Pins | TDFN-CU/12 |
| Budgetary Price (See Notes) | 1.92 |
Key Features
- Reduces External Components and Total Cost
- No Schottky-Synchronous Operation
- Internal Compensation for Any Output Voltage
- All-Ceramic Capacitors, Compact Layout
- Reduces Number of DC-DC Regulators to Stock
- Wide 4.5V to 60V Input
- Adjustable 0.9V to 0.9 x VIN Output
- Continuous 1A Current Over Temperature
- 400kHz to 2.2MHz Adjustable Switching Frequency with External Synchronization
- Reduces Power Dissipation
- Peak Efficiency > 92%
- Auxiliary Bootstrap LDO for Improved Efficiency
- 4.65μA Shutdown Current
- Operates Reliably in Adverse Industrial Environments
- Hiccup Mode Overload Protection
- Adjustable Soft-Start
- Built-In Output-Voltage Monitoring with Active-Low RESET
- Programmable EN/UVLO Threshold
- Monotonic Startup into Prebiased Load
- Overtemperature Protection
- High Industrial -40°C to +125°C Ambient Operating Temperature Range/-40°C to +150°C Junction Temperature Range
Applications/Uses
- Base Station Power Supplies
- Distributed Supply Regulation
- General-Purpose Point-of-Load
- High-Voltage, Single-Board Systems
- Industrial Control Power Supplies
- Wall Transformer Regulation
Description
The MAX17572 high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over a 4.5V to 60V input. The converter can deliver up to 1A and generates output voltages from 0.9V up to 0.9 x VIN. The feedback (FB) voltage is accurate to within ±1.2% over -40°C to +125°C. The MAX17572 uses peak current-mode control.
The device is available in a 12-pin (3mm x 3mm) TDFN package. Simulation models are available.
Technical Docs
| Data Sheet | 4.5V–60V, 1A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation | May 17, 2018 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
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