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Switching Regulator - Switching Regulators 
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MAX17542G
42V, 1A, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converter
42V Synchronous Buck Converter with Internal FETs Enables High Efficiency
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Key Features
Applications/Uses
Parametric specs for Step-Down Switching Regulators
| VIN (V) (min) | 4.5 |
| VIN (V) (max) | 42 |
| VOUT1 (V) (min) | 0.9 |
| VOUT1 (V) (max) | 37 |
| IOUT1 (A) (max) | 1 |
| Switch Type | Internal |
| Output Adjust. Method | Resistor |
| Synchronous Switching? | Yes |
| # DC-DC Outputs | 1 |
| Switching Frequency (kHz) | 600 |
| Design Tools | EE-Sim |
| Package/Pins | TDFN/10 |
| Budgetary Price (See Notes) | 1.63 |
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Simplified Block Diagram
Technical Docs
| Data Sheet | 42V, 1A, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converter | Feb 20, 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
Parametric specs for Step-Down Switching Regulators
| VIN (V) (min) | 4.5 |
| VIN (V) (max) | 42 |
| VOUT1 (V) (min) | 0.9 |
| VOUT1 (V) (max) | 37 |
| IOUT1 (A) (max) | 1 |
| Switch Type | Internal |
| Output Adjust. Method | Resistor |
| Synchronous Switching? | Yes |
| # DC-DC Outputs | 1 |
| Switching Frequency (kHz) | 600 |
| Design Tools | generateDesignEESIMUrl('http://maxim.transim.com/pwm2/designreq/Index?partId=3123', '') |
| Package/Pins | TDFN/10 |
| Budgetary Price (See Notes) | 1.63 |
Key Features
- Reduces External Components and Total Cost
- No Schottky-Synchronous Operation
- All-Ceramic Capacitors, Ultra-Compact Layout
- Reduces Number of DC-DC Regulators to Stock
- Wide 4.5V to 42V Input
- Adjustable 0.9V to 92%VIN Output
- Delivers Up to 1A
- Reduces Power Dissipation
- Peak Efficiency > 90%
- Shutdown Current = 0.9μA (typ)
- Operates Reliably in Adverse Industrial Environments
- Hiccup-Mode Current Limit, Sink Current Limit, and Autoretry Startup
- Built-In Output-Voltage Monitoring (Active-Low RESET Pin)
- Programmable EN/UVLO Threshold
- Adjustable Soft-Start and Prebiased Power-Up
- High Industrial -40°C to +125°C Ambient Operating Temperature Range / -40°C to +150°C Junction Temperature Range
Applications/Uses
- Base Station, VOIP, Telecom
- Battery-Powered Equipment
- General-Purpose Point of Load
- Home Theatre
- HVAC and Building Control
- Industrial Process Control
Description
The MAX17542G 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 1A and generates output voltages from 0.9V up to 0.92 x VIN. The feedback (FB) voltage is accurate to within ±1.7% over -40°C to +125°C.
The MAX17542G uses peak-current-mode control with pulse-width modulation (PWM) and operates with fixed 600kHz switching frequency at any load. The device is available in a 10-pin (3mm x 2mm) TDFN package. Simulation models are available.
The MAX17542G uses peak-current-mode control with pulse-width modulation (PWM) and operates with fixed 600kHz switching frequency at any load. The device is available in a 10-pin (3mm x 2mm) TDFN package. Simulation models are available.
Technical Docs
| Data Sheet | 42V, 1A, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converter | Feb 20, 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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