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Product Detailed Parameters
- Description：IC REG LINEAR 3.2V 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)：3.2V
- 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 AP7315-32SR-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated, providing a nominal output voltage of 3.2V. It operates within an input voltage range of 1.7V to 5.25V and supports a guaranteed maximum output current of 150mA. The device utilizes a CMOS process and features a quiescent current as low as 35µA. It includes an enable pin for power control and offers high ripple rejection of 75dB at 1kHz alongside low output noise of 60µVrms from 10Hz to 100kHz. The component is housed in a surface-mount SOT23 package.
Feature Summary
- Integrated enable input allows precise on/off control of the regulator operation
- High ripple rejection capability ensures stable performance against input supply variations
- Low output noise design minimizes interference in sensitive signal paths
- 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 matches the required specifications exactly. Confirm the package type corresponds to the intended PCB layout requirements. Ensure compliance with RoHS directives if environmental standards are mandatory for the project. Check the manufacturer's documentation for any specific handling or storage instructions related to moisture sensitivity levels before assembly.
Selection Notes
Select this component when a fixed 3.2V rail is required with minimal footprint constraints. Consider the SOT23 package for space-efficient designs where thermal dissipation remains within acceptable limits. Evaluate the input voltage range to ensure compatibility with the system's power source. Verify that the load current does not exceed the 150mA guarantee under all operating temperature conditions.
Part Context
This part belongs to the AP7315 series of low dropout regulators designed for low power handheld communication equipment. The series provides various fixed output voltages ranging from 1.1V to 3.3V. It is characterized by high output voltage accuracy and low on-resistance. The family supports dense PCB layouts through compact packaging options including SOT23, SOT25, and X2-DFN1010-4.
Replacement Considerations
AP7315-32SA-7
FAQ
What is the function of the EN pin?
The EN pin serves as the enable input. Driving it high turns the regulator on, while pulling it low puts the device into shutdown mode. It must not be left floating.
How is short circuit protection implemented?
When the VOUT pin is shorted to ground, the internal protection circuit triggers and clamps the output current to approximately 60mA to prevent damage from overheating.
