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Product Detailed Parameters
- Description：IC REG LINEAR 2.8V/1.8V 8-DFN
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：2
- Voltage - Input (Max)：6V
- Voltage - Output (Min/Fixed)：2.8V, 1.8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.08V @ 100mA, 0.12V @ 100mA
- Current - Output：300mA, 300mA
- Current - Quiescent (Iq)：90 µA
- Current - Supply (Max)：-
- PSRR：70dB (1kHz)
- Control Features：Enable, Shutdown
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-20°C ~ 60°C
- Mounting Type：Surface Mount
- Package / Case：8-WFDFN Exposed Pad
- Supplier Device Package：8-DFN (2x2)
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Overview
The AP2402A31DNTR-E1 is a dual positive low-dropout (LDO) voltage regulator manufactured by Diodes Incorporated using CMOS process technology. It integrates two independent output channels, each providing a fixed 2.8V output with a minimum current capability of 300mA. The device features high output voltage accuracy of ±2%, low quiescent current per channel of 50µA typical, and extremely low noise of 30µVrms over the 10Hz to 100kHz bandwidth. It includes built-in current limit protection and a chip-enable function with quick discharge for each channel. The component operates within an ambient temperature range of -40°C to +85°C and is housed in a DFN-2x2-8 package.
Feature Summary
- Dual-channel architecture with independent control via chip-enable pins
- High power supply ripple rejection ratio for stable operation
- Compatible with low ESR ceramic capacitors for compact design
- Integrated current limiting and thermal protection circuits
Applications
- Mobile phones and cordless phones
- Wireless communication equipment
- Portable games and cameras
- Video recorders
- Sub-board power supplies for telecom equipment
Procurement Notes
Verify the specific suffix DNTR against the manufacturer's official datasheet to confirm the DFN-2x2-8 package type and tape-and-reel packaging configuration. Ensure the A31 variant designation matches the required 2.8V/2.8V dual output specification before procurement. Confirm RoHS compliance status as stated in the product description. Cross-reference the part number with Diodes Incorporated's latest documentation to avoid obsolete or discontinued stock issues.
Selection Notes
Select this component when a dual rail power solution is required for battery-powered portable devices. The low noise characteristic makes it suitable for sensitive analog sections in wireless communications. Verify that the load current does not exceed the 300mA per channel limit. Consider the DFN-2x2-8 package size constraints for PCB layout. Ensure input voltage remains within the operational range defined in the electrical characteristics table of the datasheet.
Part Context
The AP2402 series comprises dual positive LDO regulators designed for low-power applications. Variants include different output voltage combinations such as 2.5V/1.8V and 2.8V/1.8V. The series is available in SOT-23-6, TSOT-23-6, and DFN-2x2-8 packages. This specific model belongs to the fixed-output subset of the AP2402 family, targeting cost-sensitive consumer electronics markets requiring reliable power management.
FAQ
What is the typical quiescent current per channel?
The typical quiescent current per channel is 50µA.
Does the AP2402A31 support independent shutdown?
Yes, each channel has a dedicated chip-enable circuit allowing independent on/off control.
What is the output voltage accuracy?
The output voltage accuracy is specified as ±2%.
