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Product Detailed Parameters
- Description：IC REG LINEAR 1.85V 150MA SOT-25
- 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：Enable
- Protection Features：Over Current
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-25
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Overview
The AP7315-185W5-7 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. Key electrical characteristics include a quiescent current as low as 35µA, ripple rejection of 75dB at 1kHz, and output noise of 60µVrms from 10Hz to 100kHz. It is housed in a SOT25 package.
Feature Summary
- CMOS-based architecture providing high output voltage accuracy and low on-resistance
- Integrated enable pin for power control and shutdown mode management
- High power supply ripple rejection and low output noise suitable for sensitive subsystems
- Built-in short circuit protection and thermal regulation
Applications
- Smartphones and tablet devices
- RF power supply circuits
- Portable video players
- Wireless communication adapters
- Camera modules
Procurement Notes
Verify the specific ordering suffix W5 corresponds to the SOT25 package configuration required for your design. Confirm that the non-discharge variant meets system requirements if output discharge functionality is not needed. Ensure compliance with RoHS and halogen-free standards as specified in the manufacturer documentation before finalizing procurement.
Selection Notes
Select this component when a stable 1.85V rail is required for low-power portable electronics. The wide input voltage range accommodates single-cell lithium-ion battery operation. Verify that the PCB layout allows for adequate thermal dissipation and that input/output capacitors are placed close to the pins to maintain stability under varying load 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 packages including SOT23, SOT25, and X2-DFN1010-4. The AP7315-185W5-7 specifically utilizes the SOT25 footprint to provide a compact solution for dense PCB layouts while maintaining high performance metrics.
Replacement Considerations
AP7315-18SA-7 (SOT23 Package)
FAQ
Does the AP7315-185W5-7 feature an internal output discharge resistor?
No, the standard AP7315 does not have an auto-discharge feature. If output discharge is required, the AP7315D variant must be selected.
What is the recommended capacitor value for stability?
A minimum 0.47µF ceramic capacitor is recommended for both the input and output to ensure stability and improve transient response.
