MAX8515

PRODUCTION

Wide-Input 0.6V Shunt Regulators for Isolated DC-DC Converters

Data Sheet (Rev. 1) Product Selection Table

Part Models: 6
1ku List Price: Starting From $0.98

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Overview

MAX8515A
- 0.6V ±0.5% Initial Accuracy at +25°C
- 0.6V ±1% Accuracy from -40°C to +85°C
MAX8515
- 0.6V ±1% Initial Accuracy at +25°C
- 0.6V ±1.8% Accuracy from -40°C to +85°C
Sinks 20mA at 0.2V to 18V
Input Voltage Range from 1.7V to 28V
Directly Drives Optocouplers
0.2Ω Dynamic Output Impedance
Space-Saving 5-Pin SC70 or SOT23 Packages

The MAX8515A/MAX8515 shunt regulators simplify the design of voltage regulation and overvoltage protection (OVP) functions in high-accuracy isolated DC-to-DC converters with output voltages as low as 0.6V. The devices have supply voltage and feedback inputs separated from the output shunt stage, and can operate directly from the DC-to-DC converter output stage when the output voltage is 1.8V to 18V. Alternately, the MAX8515A/MAX8515 input stage can be biased from an unregulated 1.7V to 28V supply, independent of DC-to-DC converter output voltage. The MAX8515A/MAX8515 shunts 20mA when the output voltage is as low as 0.2V.

The MAX8515A features an initial output accuracy of 0.5% at +25°C and 1% from -40°C to +85°C and provides the output voltage regulation function for isolated DC-to-DC converters. The MAX8515 features initial output accuracy of 1% at +25°C and 1.8% from -40°C to +85°C and can provide an output OVP function for isolated DC-to-DC converters. High open-loop bandwidth allows design of high-bandwidth DC-to-DC converters.

Low-cost, low-dropout linear regulators can be designed with the MAX8515A/MAX8515 and an external NPN transistor for cost-conscious applications that do not require overcurrent, short-circuit, or overtemperature protection.

The MAX8515/MAX8515A are available in space-saving 5-pin SC70 and SOT23 packages and are specified over the -40°C to +85°C extended temperature range. An evaluation kit is available to speed designs.

Applications

Adjustable Voltage Reference
Isolated DC-DC Conversion
Low-Dropout Linear Regulators
Network, Telecom, and Cellular Base Station Power Supplies
Shunt Regulator

Part Models: 6
1ku List Price: Starting From $0.98

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
MAX8515AEXK+	5-SC70-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX8515AEXK+T	5-SC70-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX8515AEZK+	5-TSOT-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX8515AEZK+T	5-TSOT-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX8515EXK+	5-SC70-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX8515EXK+T	5-SC70-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

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

Software Resources

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Evaluation Kits

Evaluation Kit for the MAX8515, MAX8515A

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Features and Benefits

Isolated Voltage Regulation Feedback Circuit–Set to 0.8V Threshold
Isolated OVP Circuit–Set to 1V Threshold
Adjustable Output-Voltage Thresholds
Galvanically Isolated Input and Output Grounds
Surface-Mount Components
Fully Assembled and Tested

Product Details

The MAX8515 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that demonstrates the capability of the MAX8515A shunt regulator in a voltage-regulation circuit and the MAX8515 shunt regulator in an overvoltage protection (OVP) circuit for isolated DC-to-DC converters.

The EV kit circuit is designed to operate from an input voltage supply with a nominal output of 8V and an output voltage range of 6V to 10V. The input voltage can be adjusted from 1.8V to 18V by replacing circuit components. The voltage-regulation circuit and the OVP circuit have their thresholds set to 0.8V and 1V, respectively. The thresholds can be adjusted by replacing feedback resistors on the circuit board.

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Overview

Documentation

Data Sheet 1

Design Note 6

Technical Articles 7