AP61100QZ6-7

Overview

The AP61100QZ6-7 is a low-voltage synchronous buck DC-DC converter from Diodes Incorporated, housed in a compact SOT-563-6 package. It operates with an input voltage range of 2.3 V to 5.5 V and provides a fixed output voltage of 3.6 V at up to 1 A load current. The device integrates internal power MOSFETs and features a switching frequency of 2.2 MHz. Key electrical parameters include a quiescent current of 620 µA during operation and a shutdown supply current of 100 nA. It supports a junction temperature range from -40°C to +125°C.

Feature Summary

• Integrates synchronous rectification for high efficiency in a small footprint
• Includes comprehensive protection mechanisms such as over-current, thermal, and short-circuit protection
• Features low shutdown current for extended battery life in portable applications

Applications

• Portable consumer electronics requiring efficient step-down conversion
• Battery-powered devices needing low standby power consumption
• Embedded systems with single-supply logic requirements

Procurement Notes

Verify the specific suffix and tape-and-reel quantity against official distributor catalogs before ordering. Confirm that the SOT-563-6 package dimensions match your PCB layout constraints. Ensure compatibility with RoHS3 standards if required by your manufacturing process. Cross-reference the manufacturer part number with authorized channel listings to avoid counterfeit components.

Selection Notes

Select this component when a fixed 3.6 V output is required from a 2.3 V to 5.5 V input source. It is suitable for designs prioritizing board space savings due to the integrated inductor-less or minimal external component topology typical of this series. Consider the 2.2 MHz switching frequency for balancing EMI performance and passive component size compared to lower-frequency alternatives.

Part Context

This part belongs to the AP61x00Q family of low-voltage synchronous buck converters from Diodes Incorporated. These devices are designed for applications demanding high efficiency and small solution size. The Q suffix typically indicates automotive-grade qualification or enhanced reliability variants within the manufacturer's portfolio, aligning with broader PMIC strategies for robust power management.

Replacement Considerations

AP61100QZ6-EVM is an evaluation board for this device, not a direct replacement. Check for other fixed-output variants within the AP61100 series if different voltage levels are needed. Verify pinout compatibility before substituting with similar buck converters from other manufacturers.