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Product Detailed Parameters
- Description：IC REG LINEAR 2.2V 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)：2.2V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.38V @ 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-22W5-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated, providing a nominal output voltage of 2.2V with ±1% accuracy. It supports up to 150mA output current within an input voltage range of 1.7V to 5.25V. The device features a quiescent current as low as 35µA and includes an enable pin for power control. Packaged in SOT-25-5, it incorporates internal discharge circuitry, ripple rejection of 75dB at 1kHz, and operates across a temperature range of -40°C to +85°C.
Feature Summary
- Integrated resistor network provides precise fixed output voltage options.
- Built-in auto-discharge function rapidly removes residual charge from the output when disabled.
- CMOS process design ensures high ripple rejection and low output noise for sensitive loads.
Applications
- Smart Phone/PAD
- RF Supply
- Cameras
- Portable Videos
- Wireless Communication
Procurement Notes
Verify that the specific suffix W5 corresponds to the SOT-25 package configuration required for your PCB layout. Confirm the 'D' designation indicates the inclusion of the output discharge feature, which distinguishes this variant from non-discharge versions. Ensure the ordering code matches the exact 2.2V fixed output requirement before finalizing procurement.
Selection Notes
Select this component when a stable 2.2V rail is needed for low-power handheld or wireless applications. The SOT-25 package offers a compact footprint suitable for dense layouts. The integrated discharge capability simplifies system shutdown sequences by preventing floating outputs. Verify that the input voltage remains within the specified 1.7V to 5.25V range during all operating conditions.
Part Context
This part belongs to the AP7315 series of 150mA LDO regulators designed for low power consumption and fast transient response. The series utilizes a CMOS process to achieve high PSRR and low noise. Variants are available in X2-DFN1010-4, SOT23, and SOT25 packages, allowing flexibility in thermal management and board space constraints for portable electronic devices.
Replacement Considerations
AP7315-22W5-7 (Non-discharge version)
FAQ
What is the function of the EN pin on the AP7315D-22W5-7?
The EN pin controls the regulator's operation. Driving it high enables the output, while pulling it low activates the shutdown mode and engages the internal discharge circuit to remove charge from the output.
How does the AP7315D differ from the standard AP7315?
The 'D' suffix indicates the presence of an integrated auto-discharge resistor network. When the enable pin is pulled low, this feature actively discharges the output capacitor, whereas the standard version leaves the output floating.
