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MAX859CPA
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Product Detailed Parameters
- Description：STEP-UP DC-DC CONVERTER
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Bulk
- Applications：Converter, Battery Powered Devices
- Voltage - Input：0.8V ~ 6V
- Number of Outputs：1
- Voltage - Output：2.7V ~ 6V
- Operating Temperature：0°C ~ 70°C
- Mounting Type：Through Hole
- Package / Case：8-DIP (0.300", 7.62mm)
- Supplier Device Package：8-PDIP
- Grade：-
- Qualification：-
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Overview
The MAX859CPA is a step-up DC/DC converter manufactured by Analog Devices Inc./Maxim Integrated. It operates in a boost topology to provide regulated output voltages of 3.3V, 5V, or an adjustable setting. The device supports an input voltage range from 0.7V to 6V and delivers up to 125mA of output current. It functions with a fixed switching frequency of 500kHz. The component is housed in an 8-pin PDIP package and is rated for operation within a temperature range of 0°C to +70°C.
Feature Summary
- Boost topology enables voltage step-up from low input sources
- Integrated power switch eliminates external inductor requirements
- Fixed 500kHz switching frequency optimizes passive component size
Applications
- Battery-powered portable equipment
- Low-voltage digital systems requiring higher rail voltages
- Single-cell alkaline or NiMH battery applications
Procurement Notes
Verify the specific suffix 'CPA' against official documentation to confirm the PDIP-8 package type and commercial temperature grade. Confirm availability status as this part may be discontinued or subject to last-time buy restrictions. Ensure compatibility with existing PCB footprints designed for through-hole mounting.
Selection Notes
Select this component when a simple, cost-effective solution is needed to boost low battery voltages to standard logic levels. Consider the 125mA current limit and 500kHz frequency when designing input and output filtering. Verify that the required output voltage matches the available fixed options or adjustability range.
Part Context
This device belongs to the MAX856-MAX859 family of high-efficiency step-up converters. These parts are designed for applications where space and component count are critical constraints. The family typically integrates the power switch and control circuitry into a single compact package.
Replacement Considerations
Consult official cross-reference data for verified substitutes. Generic replacements must match the boost topology, 500kHz frequency, and PDIP-8 package.
