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Product Detailed Parameters
- Description：IC REG LIN 1.85V 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)：1.85V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.44V @ 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 AP7315-185SR-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a nominal output voltage of 1.85V 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. It features a quiescent current as low as 35µA, ripple rejection of 75dB at 1kHz, and output noise of 60µVrms from 10Hz to 100kHz. The component utilizes a CMOS process and includes an enable pin for power control.
Feature Summary
- CMOS-based architecture providing high output voltage accuracy and low on-resistance
- Integrated enable input allowing precise power management and shutdown control
- Built-in short circuit protection to clamp output current during fault conditions
- Low output noise and high ripple rejection suitable for sensitive RF applications
Applications
- Smart Phone/PAD
- RF Supply
- Cameras
- Portable Videos
- Wireless Communication
Procurement Notes
Verify the specific ordering suffix SR indicates the SOT23 package variant when sourcing components. Confirm that the part number corresponds to the non-discharge version of the AP7315 series. Ensure compliance with RoHS and Halogen-free requirements if specified for the target application. Cross-reference the manufacturer's datasheet DS38352 Rev. 2-2 for final electrical specifications before integration.
Selection Notes
Select this component for designs requiring a stable 1.85V rail with minimal footprint in portable electronics. The SOT23 package offers a compact solution for dense PCB layouts. Consider the 150mA current limit and dropout characteristics relative to the load requirements. Verify that the input voltage remains within the 1.7V to 5.25V operating range under all expected line conditions.
Part Context
This component belongs to the AP7315 family of low dropout regulators designed for low power handheld communication equipment. The series is characterized by high PSRR and low noise performance. The AP7315-185SR-7 specifically denotes the 1.85V fixed output version packaged in SOT23 with tape and reel packaging.
Replacement Considerations
AP7315-185SA-7
FAQ
Does the AP7315-185SR-7 include an internal discharge resistor?
No, the standard AP7315-185SR-7 does not include an internal auto-discharge feature. For versions with output discharge, the 'D' suffix (e.g., AP7315D-185SR-7) must be used.
What is the function of the EN pin on this regulator?
The EN pin is an enable input used to turn the regulator on or off. Driving it high enables the regulator, while pulling it low puts the device into shutdown mode.
