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Product Detailed Parameters
- Description：IC REG LINEAR 3V 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)：3V
- 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 AP7315-30SA-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a nominal output voltage of 3.0V with an accuracy of ±1%. The device supports a guaranteed output current of 150mA and operates within an input voltage range of 1.7V to 5.25V. Key electrical characteristics include a ripple rejection ratio of 75dB at 1kHz, an output noise of 60µVrms (10Hz to 100kHz), and a quiescent current as low as 35µA. It features fold-back short circuit protection and is housed in an SOT23 package.
Feature Summary
- Integrated enable pin for power control
- High ripple rejection capability
- Low output noise performance
- Fold-back short circuit protection
Applications
- Smart Phone/PAD
- RF Supply
- Cameras
- Portable Videos
- Wireless Communication
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm the exact package type and internal discharge configuration. Confirm compliance requirements such as RoHS status and halogen-free definitions prior to procurement. Ensure that the selected component matches the required output voltage tolerance and thermal dissipation needs for the intended application environment.
Selection Notes
Select this component when a stable 3.0V rail is required from a variable input source between 1.7V and 5.25V. Consider the 150mA current limit and the specific dropout voltage characteristics at the expected load current. Evaluate the need for the enable function and ensure the PCB layout accommodates the necessary input and output capacitors for stability.
Part Context
This part belongs to the AP7315 series of low dropout regulators designed for low power handheld communication equipment. The series utilizes a CMOS process to achieve high output voltage accuracy and low power consumption. It is available in multiple packages including X2-DFN1010-4, SOT23, and SOT25 to support dense PCB layouts.
Replacement Considerations
Consult the manufacturer's datasheet for alternative part numbers within the AP7315 family or other compatible LDOs. Verify pinout compatibility, output voltage accuracy, and current capabilities before substitution.
FAQ
What is the function of the EN pin?
The EN pin enables or disables the regulator. Driving it high turns the regulator on, while pulling it low puts the device into shutdown mode.
How does the AP7315 handle short circuits?
It includes fold-back short circuit protection that clamps the output current to approximately 60mA when VOUT is shorted to GND.
