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Product Detailed Parameters
- Description：IC REG LINEAR 1.2V 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)：1.2V
- 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：-
- 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 AP7315-12SA-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a nominal output voltage of 1.2V with an accuracy of ±1%. The device supports a guaranteed output current of 150mA and operates within an input voltage range of 1.7V to 5.25V. Key electrical characteristics include a quiescent current of 35µA, ripple rejection of 75dB at 1kHz, and output noise of 60µVrms from 10Hz to 100kHz. It features short-circuit protection and an enable pin for power control.
Feature Summary
- Integrated enable pin allows for precise power management and shutdown control
- High ripple rejection capability ensures stable performance in noisy environments
- Low output noise design suitable for sensitive RF and communication circuits
- Built-in short circuit protection safeguards against overcurrent conditions
Applications
- Smart Phone/PAD
- RF Supply
- Cameras
- Portable Videos
- Wireless Adapters
Procurement Notes
Verify the specific part number suffix SA corresponds to the SOT23 package configuration required for your PCB layout. Confirm that the non-discharge variant meets system requirements, as discharge versions carry a different suffix. Ensure compliance with RoHS and halogen-free standards if mandated by project specifications. Cross-reference the datasheet revision to confirm technical parameters match your design constraints.
Selection Notes
Select this component when a compact SOT23 footprint is necessary alongside high PSRR and low noise performance. The 1.2V fixed output makes it appropriate for powering digital logic or analog sections requiring precise voltage rails. Consider the 150mA current limit and dropout voltage characteristics relative to your input supply variations. Verify thermal dissipation capabilities based on the expected load current and ambient temperature conditions.
Part Context
This device belongs to the AP7315 series of CMOS low dropout regulators designed for handheld communication equipment. The series offers various fixed output voltages ranging from 1.1V to 3.3V. It is available in multiple package options including X2-DFN1010-4, SOT23, and SOT25 to accommodate different density and thermal requirements.
Replacement Considerations
Check for AP7315-12SR-7 if the SR pinout variant of the SOT23 package is acceptable. For packages with integrated output discharge functionality, consider AP7315D-12SA-7. Alternative packages such as SOT25 (AP7315-12W5-7) may be used if board space permits.
