AP3428DNTR-G1

Voltage Regulators - DC DC Switching Regulators Overview

The AP3428DNTR-G1 is a synchronous step-down DC-DC converter manufactured by Diodes Incorporated. It operates with an input voltage range of 2.5V to 5.5V and provides an adjustable output voltage from 0.6V to 5.5V. The device delivers a continuous output current of 1A at a fixed switching frequency of 1.5MHz. Packaged in a compact 6-UDFN (U-DFN2020-6) surface-mount housing with an exposed pad, it supports operation across a temperature range of -40°C to 80°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous rectification for improved efficiency and reduced external component count
• Utilizes constant frequency PWM control architecture without requiring external compensation
• Supports light load regulation modes to maintain high efficiency under low power conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Set-top boxes
• Television systems
• Wireless routers
• Wi-Fi modules
• Security systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix G1 confirms RoHS3 compliance and REACH status before procurement. Confirm the U-DFN2020-6 package variant matches the design footprint requirements. Ensure the 1.5MHz fixed frequency aligns with EMI constraints. Check lead times as standard delivery may vary. Validate that the exposed pad thermal design meets system cooling needs.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a single adjustable output buck converter is required within a 5.5V input limit. The 1A current rating suits moderate power loads. The 6-UDFN package offers space savings compared to larger footprints. Consider the 1.5MHz frequency for balancing component size against noise. Verify thermal performance for the target ambient temperature range up to 80°C.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the AP3428 family of 1A synchronous step-down converters. It shares core topology with variants like the AP3428KTTR-G1, which uses a TSOT-25-5 package. The DNTR-G1 designation specifically identifies the U-DFN2020-6 form factor. These devices are designed for portable electronics requiring efficient power management from single-cell lithium-ion sources.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official manufacturer cross-reference lists or datasheets for verified alternatives.