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Product Detailed Parameters
- Description：IC REG LINEAR 1.1V 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)：1.1V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.64V @ 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-11W5-7 is a low dropout regulator manufactured by Diodes Incorporated, featuring an integrated resistor network for a fixed 1.1V output voltage. It operates within an input voltage range of 1.7V to 5.25V and guarantees a maximum output current of 150mA. The device utilizes a CMOS process and includes an enable pin for power control. It provides high ripple rejection of 75dB at 1kHz and maintains low output noise of 60µVrms from 10Hz to 100kHz. Quiescent current is as low as 35µA. The component incorporates auto-discharge functionality and short-circuit protection.
Feature Summary
- Integrated auto-discharge feature that actively pulls the output voltage down when disabled
- High ripple rejection capability with low output noise for sensitive circuitry
- Built-in enable pin allowing precise power management and shutdown control
- Short-circuit protection mechanism to prevent damage during overcurrent events
Applications
- Smart Phone/PAD
- RF Supply
- Cameras
- Portable Videos
- Wireless Communication
Procurement Notes
Verify the specific ordering suffix W5 corresponds to the SOT25 package configuration required for your PCB layout. Confirm the D suffix indicates the inclusion of the internal discharge resistor, which differentiates it from non-discharge variants. Ensure compatibility with RoHS compliance standards and check for any automotive-specific qualification requirements if deploying in regulated environments.
Selection Notes
Select this variant when a fixed 1.1V rail is necessary alongside active output discharge capabilities. The SOT25 package offers a compact footprint suitable for dense layouts. Consider the 150mA current limit and 1.7V minimum input voltage when designing power stages. Verify thermal dissipation requirements based on the expected load current and ambient operating temperature conditions.
Part Context
This component belongs to the AP7315 series of low dropout regulators designed for low power handheld communication equipment. The series supports various fixed output voltages ranging from 1.1V to 3.3V. It is available in multiple packages including X2-DFN1010-4, SOT23, and SOT25. The D suffix specifically denotes the version equipped with an output discharge function for faster shutdown times.
Replacement Considerations
AP7315-11W5-7 (Non-discharge variant)
FAQ
What is the function of the 'D' suffix in the part number?
The 'D' suffix indicates that the regulator includes an internal auto-discharge resistor connected between the output and ground, which actively discharges the output capacitor when the enable pin is pulled low.
How does the enable pin operate?
The enable pin turns the regulator on when driven high and puts it into shutdown mode when pulled low. It must not be left floating to ensure proper operation.
