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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
Download product information
Overview
The AP7315-30SR-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated, delivering a nominal output voltage of 3.0V with a maximum guaranteed load current of 150mA. It operates within an input voltage range of 1.7V to 5.25V and features high power supply rejection ratio (PSRR) of 75dB at 1kHz alongside low output noise of 60µVrms from 10Hz to 100kHz. The device incorporates an enable pin for power control, utilizes SOT23 packaging, and maintains a quiescent current as low as 35µA.
Feature Summary
- Integrated enable pin allows precise power management by switching the regulator on or off via logic level signals.
- CMOS-based architecture ensures minimal power consumption through ultra-low quiescent current operation.
- High ripple rejection capability effectively suppresses input power supply noise across varying frequencies.
- Built-in short circuit protection limits output current during fault conditions to prevent thermal damage.
Applications
- Smart Phone/PAD
- RF Supply
- Cameras
- Portable Videos
- Wireless Communication
Procurement Notes
Verify the specific ordering suffix matches the required package type and output tolerance. Confirm that the component meets RoHS compliance standards if environmental regulations apply to your manufacturing process. Ensure the selected variant aligns with the intended operating temperature range and electrical requirements before finalizing procurement orders.
Selection Notes
Select this component when designing circuits requiring stable 3.0V regulation from single-cell lithium sources or similar low-voltage rails. Consider the SOT23 footprint constraints and verify that external capacitor values meet stability requirements under expected load variations. Evaluate the enable pin functionality against system power sequencing needs.
Part Context
This part belongs to the AP7315 series of low dropout regulators designed for portable electronics. The series offers various fixed output voltages ranging from 1.1V to 3.3V in multiple package options including SOT23, SOT25, and X2-DFN1010-4. The SR suffix specifically denotes the SOT23 package configuration without auto-discharge features.
Replacement Considerations
AP7315-30SA-7
FAQ
What is the function of the EN pin?
The EN pin serves as an enable input. Driving it high activates the regulator, while pulling it low places the device into shutdown mode. It must not be left floating.
Does the AP7315-30SR-7 include output discharge?
No, the standard AP7315 does not feature built-in output discharge. Variants designated with 'D' in the part number, such as AP7315D, include an auto-discharge function.
