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Product Detailed Parameters
- Description：IC REG LINEAR 2.8V 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)：2.8V
- 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
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Overview
The AP7315D-28W5-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a guaranteed output current of 150mA with an output voltage accuracy of ±1%. The device operates within an input voltage range of 1.7V to 5.25V and features a quiescent current as low as 35µA. It includes an enable pin for power control, short circuit protection, and an internal auto-discharge function. The component is housed in a SOT25 package.
Feature Summary
- Integrated CMOS process enables high ripple rejection and low output noise for sensitive applications
- Built-in discharge resistor automatically discharges the output capacitor when disabled
- Fold-back short circuit protection limits output current during fault conditions
Applications
- RF supply circuits
- Portable media players
- Wireless communication adapters
Procurement Notes
Verify that the specific part number matches the required output voltage and package type before ordering. Confirm compliance with RoHS and Halogen-free standards if environmental regulations apply. Ensure the design utilizes the recommended input and output capacitors to maintain stability under varying load conditions.
Selection Notes
Select this component for designs requiring precise voltage regulation with minimal power consumption. The integrated discharge feature simplifies system shutdown sequences. Verify that the maximum input voltage does not exceed absolute maximum ratings to prevent permanent damage.
Part Context
This device belongs to the AP7315 series of low dropout regulators. The 'D' suffix indicates the inclusion of an output discharge resistor, while 'W5' specifies the SOT25 surface-mount package. The series is designed for portable handheld equipment requiring small footprints and dense PCB layouts.
Replacement Considerations
AP7315-28W5-7 (Non-discharge version)
FAQ
What is the purpose of the 'D' suffix in the part number?
The 'D' suffix indicates that the regulator includes an internal auto-discharge resistor to safely discharge the output capacitor when the enable pin is pulled low.
How does the enable pin function?
Driving the EN pin high turns the regulator on, while pulling it low activates shutdown mode. The pin must not be left floating.
