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Product Detailed Parameters
- Description：IC REG LINEAR 3.2V 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)：3.2V
- 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：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
- Grade：-
- Qualification：-
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Overview
The AP7315D-32W5-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a nominal output voltage of 3.2V with an accuracy of ±1%. The device supports a maximum output current of 150mA and operates within an input voltage range of 1.7V to 5.25V. Key electrical characteristics include a typical ripple rejection of 75dB at 1kHz, an output noise of 60µVrms from 10Hz to 100kHz, and a quiescent current as low as 35µA. It features an enable pin and built-in auto-discharge functionality.
Feature Summary
- Integrates an enable control pin for power management and shutdown modes.
- Includes an internal discharge resistor network to rapidly deplete output voltage when disabled.
- Utilizes CMOS process technology to achieve high line/load regulation and low power consumption.
- Provides short circuit protection to clamp output current during fault conditions.
Applications
- Smart Phone/PAD
- RF Supply
- Cameras
- Portable Videos
- Wireless Communication
Procurement Notes
Verify the specific part number against official manufacturer documentation to confirm package type, output voltage tolerance, and discharge feature availability. Ensure compatibility with required PCB layout guidelines regarding capacitor placement and thermal dissipation. Confirm compliance with relevant environmental directives such as RoHS before finalizing procurement specifications.
Selection Notes
Select this component for applications requiring precise voltage regulation in space-constrained designs. The SOT25 package offers a compact footprint suitable for dense PCB layouts. Consider the integrated discharge feature if rapid output voltage decay is necessary upon disabling the regulator. Evaluate input voltage ranges and load transient requirements to ensure stable operation across the specified temperature range.
Part Context
This device belongs to the AP7315 series of low dropout regulators designed for low power handheld communication equipment. The series is characterized by high output voltage accuracy, low on-resistance, and high power supply ripple rejection. It is available in multiple packages including X2-DFN1010-4, SOT23, and SOT25 to accommodate various design constraints.
Replacement Considerations
AP7315-32W5-7 (Non-discharge variant)
FAQ
What is the function of the 'D' suffix in the AP7315D-32W5-7 part number?
The 'D' suffix indicates that the regulator includes an internal auto-discharge feature, which actively pulls down the output voltage when the enable pin is driven low.
How does the AP7315D-32W5-7 handle short circuit conditions?
The device incorporates short circuit protection that triggers when the output is shorted to ground, clamping the output current to approximately 60mA to prevent damage due to overheating.
