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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 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)：2.5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.32V @ 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
Download product information
Overview
The AP7315-25SA-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated, providing a nominal output voltage of 2.5V. It operates within an input voltage range of 1.7V to 5.25V and supports a guaranteed maximum output current of 150mA. The device features high ripple rejection of 75dB at 1kHz and low output noise of 60µVrms from 10Hz to 100kHz. Quiescent current is specified as low as 35µA. It includes an enable pin for power control and is housed in a surface-mount SOT23 package.
Feature Summary
- Integrated enable input allows precise power management and shutdown control
- High ripple rejection ratio ensures stable performance against input supply variations
- Low output noise characteristic suitable for sensitive analog and RF circuits
- Built-in short circuit protection safeguards the device during fault conditions
Applications
- Smart Phone/PAD
- RF Supply
- Cameras
- Portable Videos
- Wireless Communication
Procurement Notes
Verify that the ordering suffix SA corresponds to the SOT23 package configuration required for your PCB layout. Confirm the specific output voltage accuracy grade matches your design tolerance requirements. Ensure the EN pin is driven correctly to avoid floating states. Check for compliance with RoHS directives if environmental regulations apply to your manufacturing process.
Selection Notes
Select this component when a fixed 2.5V rail is needed with minimal footprint. The SOT23 package offers a compact solution for dense layouts. Consider the 150mA current limit when sizing external capacitors and traces. Verify that the input voltage remains above the dropout threshold across all operating temperatures and load conditions.
Part Context
This part belongs to the AP7315 series of CMOS low dropout regulators. The series provides various fixed output voltages ranging from 1.1V to 3.3V. Other available packages include X2-DFN1010-4 and SOT25. The non-discharge variant lacks internal output discharge, distinguishing it from the AP7315D series.
Replacement Considerations
AP7315-25SR-7 (Same voltage, different SOT23 pinout)
FAQ
How does the AP7315-25SA-7 handle short circuit conditions?
When the output is shorted to ground, the device triggers fold-back short circuit protection, clamping the output current to approximately 55mA to prevent damage.
What is the function of the EN pin on this regulator?
The EN pin enables or disables the regulator. Driving it high turns the device on, while pulling it low activates shutdown mode. It must not be left floating.
