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Product Detailed Parameters
- Description：IC REG LIN 2.85V 150MA SOT23-3
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：5.25V
- Voltage - Output (Min/Fixed)：2.85V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.29V @ 150mA
- Current - Output：150mA
- Current - Quiescent (Iq)：60 µA
- Current - Supply (Max)：100 µA
- PSRR：75dB (1kHz)
- Control Features：-
- Protection Features：Over Current
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
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Overview
The AP7315-285SR-7 is a low dropout regulator manufactured by Diodes Incorporated, featuring a fixed output voltage of 2.85V and packaged in SOT23. It supports an input voltage range from 1.7V to 5.25V and guarantees an output current of 150mA. The device provides high output voltage accuracy with a tolerance of ±1% and achieves a ripple rejection of 75dB at 1kHz. Its low output noise is specified as 60µVrms across the 10Hz to 100kHz frequency band, while quiescent current operates as low as 35µA.
Feature Summary
- CMOS-based architecture providing high output voltage accuracy and low on-resistance
- Integrated enable pin for precise power management and shutdown control
- High ripple rejection and low output noise suitable for sensitive subsystems
- Built-in short circuit protection to prevent damage during overcurrent events
Applications
- Smart Phone/PAD
- RF Supply
- Cameras
- Portable Videos
- Wireless Communication
Procurement Notes
Verify the specific ordering suffix SR to confirm the SOT23 package type and tape-and-reel packaging configuration. Ensure the part number matches the required 2.85V fixed output voltage specification. Confirm compliance with RoHS directives and lead-free manufacturing standards before procurement. Validate that the supplier source aligns with authorized distribution channels to guarantee component authenticity and traceability.
Selection Notes
Select this component when a stable 2.85V rail is required within a 1.7V to 5.25V input window. The SOT23 package offers a compact footprint for dense PCB layouts. Consider the 150mA current capability and 35µA quiescent current for battery-operated applications. Verify thermal dissipation requirements against the maximum power dissipation rating under expected load conditions.
Part Context
This device belongs to the AP7315 series of low dropout regulators designed for low power handheld communication equipment. The series utilizes a CMOS process to achieve low static current and high performance metrics. It includes integrated features such as a voltage reference, error amplifier, and current limit circuitry for robust operation.
Replacement Considerations
Cross-reference with other AP7315 variants sharing the same 2.85V output and SOT23 package. Verify functional compatibility regarding pin assignments and electrical characteristics before substitution.
FAQ
How does the enable pin function?
The enable pin turns the regulator on when driven high and puts it into shutdown mode when pulled low. It must not be left floating.
What is the recommended capacitor value for stability?
A minimum 0.47μF ceramic capacitor is recommended between the VIN and GND pins to decouple input power supply glitches and ensure stability.
