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Product Detailed Parameters
- Description：IC REG LIN 1.35V 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)：1.35V
- 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
Download product information
Overview
The AP7315-135SR-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated, providing a nominal output voltage of 1.35V. It supports an input voltage range from 1.7V to 5.25V and delivers a guaranteed maximum output current of 150mA. The device features high ripple rejection of 75dB at 1kHz and low output noise of 60µVrms across the 10Hz to 100kHz bandwidth. Quiescent current is specified as low as 35µA. It operates within an ambient temperature range of -40°C to +85°C and utilizes a SOT23 package with the SR pinout configuration.
Feature Summary
- CMOS-based architecture ensuring low power consumption and minimal quiescent current draw during operation.
- Integrated enable control pin allows for precise power management and shutdown functionality.
- Built-in short circuit protection limits output current to approximately 60mA during fault conditions.
- High ripple rejection capability effectively suppresses input supply noise for sensitive applications.
Applications
- Smart Phone/PAD
- RF Supply
- Cameras
- Portable Videos
- Wireless Communication
Procurement Notes
Verify that the specific ordering suffix matches the required package type and output tolerance. Confirm the presence of the enable pin functionality if active control is necessary for the system design. Ensure compliance with environmental standards such as RoHS and Halogen-free requirements before finalizing procurement specifications.
Selection Notes
Select this component when a stable 1.35V rail is required for low-power portable electronics. Consider the 150mA current limit and dropout characteristics relative to the minimum expected input voltage. Evaluate the need for the enable feature against alternative non-enable variants if power switching is not required in the target application.
Part Context
This part belongs to the AP7315 series of low dropout regulators designed for handheld communication equipment. The series offers various fixed output voltages ranging from 1.1V to 3.3V. The SR designation indicates a specific pinout configuration within the SOT23 package family, distinguishing it from SA or W5 variants.
Replacement Considerations
AP7315-135SA-7
FAQ
What is the function of the EN pin on the AP7315-135SR-7?
The EN pin serves as an enable input. Driving it high turns the regulator on, while pulling it low activates shutdown mode. It must not be left floating.
How does the AP7315 handle short circuit conditions?
The device includes short circuit protection that triggers when VOUT is shorted to GND, clamping the output current to approximately 60mA to prevent damage.
