MAX17498B

PRODUCTION

AC-DC and DC-DC Peak-Current-Mode Converters for Flyback/Boost Applications

Peak-Current-Mode Converters Enable Compact, Cost-Effective, and Highly Flexible Isolated/Nonisolated Power Supplies

Data Sheet (Rev. 4) Product Selection Table

Part Models: 2
1ku List Price: Starting From $1.57

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Part Details

Peak Current-Mode Converter
Current-Mode Control Provides Excellent Transient Response
Fixed Switching Frequency
- 250kHz: MAX17498A/MAX17498C
- 500kHz: MAX17498B
Flexible Error Amplifier to Regulate Both Positive and Negative Outputs
Programmable Soft-Start to Reduce Input Inrush Current
Programmable Voltage or Current Soft-Start
Power-Good Signal (PGOOD)
Reduced Power Dissipation Under Fault
- Overcurrent Protection
- Thermal Shutdown with Hysteresis
Robust Protection Features
- Programmable Current Limit
- Input Overvoltage Protection
Optimized Loop Performance
- Fixed Default Slope Compensation in Current Soft-Start
- Fixed Default and Programmable Slope Compensation in Voltage Soft-Start
High Efficiency
- Low R_DSON, 175mΩ, 65V Rated Internal n-Channel MOSFET
- No Current-Sense Resistor
Optional Spread Spectrum
Space-Saving, 16-Pin (3mm x 3mm) TQFN Package

Part Models: 2
1ku List Price: Starting From $1.57

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX17498BATE+	16-LFCSP-3X3X0.75	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX17498BATE+T	16-LFCSP-3X3X0.75	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Apr 27, 2024 - 2400 ASSEMBLY
		pcn_2400
MAX17498BATE+	PRODUCTION
MAX17498BATE+T	PRODUCTION
Dec 13, 2013 - 1355 MECHANICAL DATASHEET
		pcn_1355
MAX17498BATE+	PRODUCTION
MAX17498BATE+T	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Tools & Simulations

EE-Sim Power® Tools 1

The EE-Sim DC-DC Converter Tool uses your requirements to quickly create a complete power design including a schematic, BOM with commercially available parts, and time and frequency domain simulations. Your customized schematic can be downloaded for further analysis in the standalone EE-Sim OASIS Simulator, featuring SIMPLIS and SIMetrix SPICE engines.

Start EE-Sim Now

Evaluation Kits

Evaluation Kit for the MAX17498B

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Features and Benefits

+18V to +36V DC Voltage Input Range
Isolated 5V, 1.5A Output
Fixed 500kHz Switching Frequency
88% Efficiency
Cycle-by-Cycle Current Limit
High-Accuracy UVLO
PGOOD Open-Drain Output
Low-Cost Flyback Design
Configurable for Primary-Side Regulation
Proven PCB Layout
Fully Assembled and Tested

Product Details

The MAX17498B evaluation kit (EV kit) is a fully assembled and tested circuit board that contains an isolated 7W flyback DC-DC converter. The circuit uses the MAX17498B current-mode, fixed-frequency flyback converter in a 16-pin TQFN package with an exposed pad. The EV kit demonstrates the IC's cycle-by-cycle current limit, soft-start, and UVLO features.

The EV kit circuit output is configured for an isolated +5V and provides up to 1.5A of current. Low cost and high efficiency up to 88% are achieved using a flyback DC-DC converter topology operating at a fixed 500kHz switching frequency. The surface-mount transformer provides up to +1500V galvanic isolation at the output.

The EV kit operates from a +18V to +36V power supply capable of providing up to 1A.

Applications

Front-End AC/DC Power Supplies for Industrial Applications (Isolated and Nonisolated)
Telecom Power Supplies
Wide Range DC Input Flyback/Boost Industrial Power Supplies

Evaluation Kit for the MAX17498B

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Features and Benefits

4.5V to 10V Input Range
Output Voltage: 24V at 100mA
500kHz Switching Frequency
Integrated n-Channel MOSFET
Efficiency Up to 94.2%
Resistor-Programmable UVLO/OVI Threshold
Open-Drain Power-Good Signal (PGOOD)
Low-Cost Boost Converter Design
Proven PCB Layout
Fully Assembled and Tested

Product Details

The MAX17498BB evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board to evaluate the MAX17498B peak-current-mode controller in a stepup (boost) configuration. The EV kit output is configured for 24V output voltage, which can supply up to 100mA of current. The input voltage range is from 4.5V to 10V.

The EV kit features a 500kHz fixed frequency for optimum efficiency and component size. High efficiency up to 94.2% is achieved using a boost converter, providing an output power up to 2.4W.

Applications

Front-End AC/DC Power Supplies for Industrial Applications (Isolated and Nonisolated)
Telecom Power Supplies
Wide Input Range DC Input Flyback/Boost Industrial Power Supplies