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Product Detailed Parameters
- Description：IC REG LINEAR 1.2V 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)：1.2V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.64V @ 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 AP7315-12SR-7 is a low dropout regulator manufactured by Diodes Incorporated, featuring a fixed 1.2V output voltage and housed in an SOT23 package with the SR suffix indicating internal discharge functionality. It operates within an input voltage range of 1.7V to 5.25V and guarantees a maximum output current of 150mA. The device exhibits high output voltage accuracy of ±1%, ripple rejection of 75dB at 1kHz, and low output noise of 60µVrms from 10Hz to 100kHz. Quiescent current is as low as 35µA, and it includes an enable pin for power management.
Feature Summary
- CMOS-based architecture providing high output voltage accuracy and low quiescent current
- Integrated enable input allowing precise control over regulator on/off states
- Built-in short circuit protection that clamps output current during fault conditions
- Internal resistor network delivering fixed output voltage options without external components
Applications
- Smart Phone/PAD
- RF Supply
- Cameras
- Portable Videos
- Wireless Communication
Procurement Notes
Verify the specific ordering suffix against official Diodes documentation to confirm package type and discharge configuration. Ensure compatibility with required PCB footprint dimensions for the SOT23 package. Confirm environmental compliance status such as RoHS and halogen-free requirements prior to final procurement decisions.
Selection Notes
Select this component when a stable 1.2V rail is required for low-power portable electronics. Consider the internal discharge feature if rapid output voltage decay is necessary upon shutdown. Evaluate thermal dissipation requirements based on the expected load current and ambient operating temperature conditions.
Part Context
This part belongs to the AP7315 series of low dropout regulators designed for handheld communication equipment. The series offers various fixed output voltages and packaging options including X2-DFN1010-4, SOT23, and SOT25. It is engineered for dense PCB layouts with minimal footprint requirements while maintaining high performance metrics.
Replacement Considerations
AP7315-12SA-7
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 SR suffix differ from SA?
The SR suffix indicates the device includes an internal auto-discharge feature for the output capacitor, whereas the SA suffix denotes a non-discharge version.
