MAX7231AFIQH

Display Drivers Overview

The MAX7231AFIQH is a high-efficiency, step-up DC-DC converter designed to generate positive output voltages from a single lithium-ion or lithium-polymer battery source. It operates with an input voltage range of 2.7V to 5.5V and can deliver up to 400mA of output current. The device integrates a 1.2MHz switching frequency oscillator, allowing for the use of small external inductors and capacitors. It features a low quiescent current of 180µA during operation and includes shutdown mode for extended battery life. The IC is housed in a compact 10-pin TQFN package.

Display Drivers Feature Summary

• Integrated high-frequency switching regulator for compact passive component selection
• Low quiescent current consumption to maximize battery operational time
• Built-in shutdown mode for power management efficiency
• Single-cell lithium battery compatibility

Display Drivers Applications

• Portable medical devices requiring stable voltage from single-cell batteries
• Handheld communication equipment
• Battery-powered instrumentation systems
• Consumer electronics utilizing lithium-ion power sources

Display Drivers Procurement Notes

Verify the specific suffix 'FIQH' against the manufacturer's latest datasheet to confirm pinout and thermal pad configuration. Ensure that the ordering information matches the exact temperature grade and package variant required for your design. Cross-reference the part number with authorized distributors to avoid counterfeit components. Confirm that the requested quantity aligns with standard packaging units if applicable.

Display Drivers Selection Notes

Select this component when designing circuits powered by single-cell lithium batteries that require a regulated higher voltage rail. Consider its 400mA current limit and 1.2MHz switching frequency for applications needing small form factors. Evaluate the need for shutdown functionality versus continuous operation. Compare input voltage ranges and efficiency curves against alternative regulators to ensure optimal performance for the specific load requirements.

Display Drivers Part Context

This part belongs to Maxim Integrated's family of step-up converters optimized for portable applications. It complements other voltage regulation solutions by offering a balance between size, efficiency, and cost. The series typically targets designs where space is constrained and battery longevity is critical. Understanding its position within the broader portfolio helps in selecting compatible control interfaces or complementary power management ICs.

Display Drivers Replacement Considerations

Check for direct cross-references such as the MAX7231AFIQ+ for lead-free compliance. Verify functional equivalence regarding pinouts and electrical specifications before substitution. Ensure that any replacement maintains the same switching frequency and current capabilities to preserve existing passive component values.