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Product Detailed Parameters
- Description：IC REG LINEAR 3.1V 150MA SOT23-3
- 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)：3.1V
- 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：-
- Protection Features：Over Current
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
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Overview
The AP7315-31SA-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a precise 3.1V output with a guaranteed maximum load current of 150mA. The device operates within an input voltage range of 1.7V to 5.25V and features a typical quiescent current of 35µA. Packaged in the SOT23 form factor, it includes an enable pin for power control and offers high ripple rejection of 75dB at 1kHz alongside low output noise.
Feature Summary
- Integrated enable pin allows for active power management and shutdown control
- CMOS process architecture ensures low static current consumption
- High ripple rejection capability suitable for noise-sensitive subsystems
- Built-in short circuit protection safeguards against overcurrent conditions
Applications
- Smart Phone/PAD
- RF Supply
- Cameras
- Portable Videos
- Wireless Communication
Procurement Notes
Verify that the specific suffix SA corresponds to the required SOT23 package configuration. Confirm the ordering code matches the exact 3.1V fixed output requirement. Ensure compliance with RoHS standards if environmental regulations apply to the final assembly. Check datasheet specifications regarding thermal dissipation requirements for the chosen PCB layout.
Selection Notes
Select this component when a stable 3.1V rail is needed from varying input sources between 1.7V and 5.25V. The SOT23 package is appropriate for space-constrained designs requiring surface mount technology. Consider the 150mA current limit and 35µA quiescent current for battery-powered applications where efficiency is critical.
Part Context
This part belongs to the AP7315 series of low dropout regulators designed for handheld communication equipment. The series utilizes a CMOS process to achieve high accuracy and low noise. The AP7315-31SA-7 specifically denotes the 3.1V output variant housed in the standard SOT23 package with tape and reel packaging.
Replacement Considerations
AP7315-31SR-7 serves as a direct alternative offering identical electrical characteristics but utilizing the SR package variant within the SOT23 family.
