AP2402A33KTR-G1

Overview

The AP2402A33KTR-G1 is a dual positive voltage regulator IC from Diodes Incorporated, fabricated using CMOS process. It integrates two independent linear regulators within a single package, featuring fixed output voltages of 2.8V and 2.8V. The device operates with an input voltage range suitable for battery-powered applications and delivers a minimum output current capability of 300mA per channel. Key electrical characteristics include high output voltage accuracy of ±2%, low quiescent current of 50µA typical per channel, and extremely low noise of 30µVrms over the 10Hz to 100kHz bandwidth. It supports operation temperatures from -40°C to +85°C and utilizes SOT-23-6 packaging.

Feature Summary

• Dual-channel architecture providing independent 2.8V outputs with individual chip-enable control for power management flexibility.
• High precision regulation with ±2% output voltage accuracy and high supply voltage ripple rejection (PSRR) of 70dB typical at 1kHz.
• Ultra-low standby current consumption of 0.1µA typical, enhancing battery life in portable devices when disabled.

Applications

• Mobile phones and cordless phones requiring stable dual-rail power supplies.
• Wireless communication equipment needing low-noise regulation for sensitive analog circuits.
• Portable games and cameras where space-constrained DFN or SOT packages are preferred.
• Sub-board power supplies for telecom equipment utilizing low dropout performance.

Procurement Notes

Verify the specific suffix KTR against the official datasheet to confirm the SOT-23-6 package type and tape-and-reel quantity. Ensure the A33 designation matches the required 2.8V/2.8V fixed output configuration. Check RoHS compliance status and moisture sensitivity level requirements for your assembly line. Confirm availability through authorized distributors as lead times may vary based on production cycles.

Selection Notes

Select this component when dual isolated LDO rails are needed in a compact footprint. The 300mA per channel rating suits moderate load applications, while the 50µA quiescent current ensures efficiency in battery-operated systems. Consider the 30µVrms noise specification for audio or RF sections. Verify that the input voltage remains above the dropout threshold for both channels under maximum load conditions.

Part Context

The AP2402 series comprises dual positive voltage regulators designed for portable electronics. Variants include different fixed output combinations such as 2.5V/1.8V and 2.8V/1.8V. The series is characterized by CMOS fabrication, offering low dropout voltage and compatibility with low ESR ceramic capacitors. Packaging options include SOT-23-6, TSOT-23-6, and DFN-2x2-8 to accommodate various board space constraints.

Replacement Considerations

Cross-reference with other AP2402 variants like AP2402A21KTR-E1 (2.5V/1.8V) if different voltage levels are acceptable. Verify pinout compatibility with SOT-23-6 packages from other manufacturers. Ensure equivalent PSRR and noise specifications are met for sensitive circuit applications.