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Product Detailed Parameters
- Description：IC REG LINEAR POS ADJ 1A 8-DFN
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Output Configuration：Positive
- Output Type：Adjustable
- Number of Regulators：1
- Voltage - Input (Max)：12V
- Voltage - Output (Min/Fixed)：1.25V
- Voltage - Output (Max)：11.5V
- Voltage Dropout (Max)：0.5V @ 1A (Typ)
- Current - Output：1A
- Current - Quiescent (Iq)：250 µA
- Current - Supply (Max)：-
- PSRR：-
- Control Features：Enable
- Protection Features：Over Current, Over Temperature, Over Voltage
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：8-WDFN Exposed Pad
- Supplier Device Package：8-DFN (3x3)
- Grade：-
- Qualification：-
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Overview
The AP2318ADN-ADJTRG1 is an adjustable ultra-low dropout regulator from Diodes Incorporated, housed in a DFN-3x3-8 package. It supports an input voltage range of 2.5V to 12V and delivers up to 1A output current with ±1.5% accuracy. The device features on-chip thermal shutdown and current limit protection. Operating junction temperature ranges from -40°C to +125°C.
Feature Summary
- Adjustable output voltage configuration via external resistors
- Integrated thermal shutdown for overload protection
- High ESD tolerance ratings
Applications
- Notebook computers
- USB devices
- Add-on cards
- DVD players
- PC motherboards
Procurement Notes
Verify the component status before procurement as this part may be marked not recommended for new design. Confirm that the specific ordering suffix matches the required tape and reel packaging format. Ensure the selected package variant aligns with the intended PCB layout constraints.
Selection Notes
Select this component for applications requiring wide input voltage ranges and high transient response. Verify that the load requirements do not exceed the maximum output current rating. Ensure adequate thermal management is provided to maintain safe operating temperatures under heavy loads.
Part Context
This component belongs to the AP2318A series of ultra-low dropout regulators designed for low voltage applications. The series includes both fixed and adjustable versions available in DFN-3x3-8 and PSOP-8 packages. It is optimized for scenarios where minimum input voltage and fast transient response are critical system parameters.
Replacement Considerations
Consult official manufacturer documentation for confirmed substitute part numbers. Do not assume cross-compatibility with other LDO families without verifying pinouts and electrical specifications.
FAQ
How is the output voltage determined for the ADJ version?
The output voltage is set using two external resistors connected to the ADJ pin.
What protection mechanisms are included?
The device includes on-chip thermal shutdown and current limit functions to protect against excessive junction temperatures and overloads.
