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Product Detailed Parameters
- Description：IC REG LINEAR 1.85V X2-DFN10104
- 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：4-XDFN Exposed Pad
- Supplier Device Package：X2-DFN1010-4
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Overview
The AP7315D-185FS4-7B is a low dropout regulator manufactured by Diodes Incorporated, featuring an integrated resistor network for fixed output voltage. It operates within an input voltage range of 1.7V to 5.25V and guarantees an output current of 150mA. The device provides high output voltage accuracy with a tolerance of ±1% at room temperature. It incorporates an enable input for power control and utilizes a CMOS process. The component is housed in an X2-DFN1010-4 package.
Feature Summary
- Integrated auto-discharge circuitry that automatically pulls the output voltage to ground when the enable pin is deactivated.
- High ripple rejection capability combined with low output noise characteristics suitable for sensitive subsystems.
- Low quiescent current consumption designed to extend battery life in portable applications.
Applications
- Smartphones and tablet devices
- RF supply circuits
- Portable video players
- Wireless communication equipment
Procurement Notes
Verify the specific ordering suffix FS4-7B to confirm the X2-DFN1010-4 package type and tape-and-reel packaging quantity. Ensure the 'D' designation is recognized as indicating the presence of the internal discharge feature. Confirm RoHS compliance status through official manufacturer documentation prior to final procurement decisions.
Selection Notes
Select this variant when a compact footprint is required alongside precise voltage regulation. The inclusion of the discharge function distinguishes it from non-discharge versions, making it suitable for systems requiring rapid output voltage decay. Verify that the 1.85V fixed output aligns with the target load requirements before integration into the design.
Part Context
This component belongs to the AP7315 series of low dropout regulators produced by Diodes Incorporated. The series is characterized by its CMOS-based architecture and availability in multiple small outline packages. The AP7315D-185FS4-7B specifically denotes the version with built-in output discharge functionality packaged in the X2-DFN1010-4 format.
Replacement Considerations
AP7315-185FS4-7B (Non-discharge version)
FAQ
What is the function of the 'D' suffix in the part number?
The 'D' indicates that the regulator includes an internal auto-discharge feature, which actively pulls the output voltage to ground when the device is disabled.
How does the enable pin operate on this device?
The enable pin controls the state of the regulator; driving it high turns the regulator on, while pulling it low activates shutdown mode and engages the discharge circuit.
