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Product Detailed Parameters
- Description：IC REG LINEAR 3.3V 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)：3.3V
- 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
Download product information
Overview
The AP7315-33SA-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a nominal output voltage of 3.3V 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 specifications include a quiescent current of 35µA, ripple rejection of 75dB at 1kHz, and output noise of 60µVrms from 10Hz to 100kHz. It features fold-back short circuit protection and operates over an ambient temperature range of -40°C to +85°C.
Feature Summary
- Integrates an enable pin for power management control
- Includes internal current limit and thermal shutdown protection
- Utilizes CMOS process technology for low power consumption
Applications
- Smart Phone/PAD
- RF Supply
- Cameras
- Portable Videos
- Wireless Adapters
Procurement Notes
Verify the specific package code SA corresponds to the SOT23 configuration required for your PCB layout. Confirm that the non-discharge variant matches your system's standby current requirements. Ensure input and output capacitors meet stability criteria regarding ESR and capacitance values as defined in the datasheet application information.
Selection Notes
Select this component when a stable 3.3V rail is needed for sensitive RF or portable loads. The high PSRR makes it suitable for noise-sensitive circuits. Verify that the maximum input voltage does not exceed 5.25V. Consider the SOT23 footprint constraints against available board space and thermal dissipation needs.
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. It is distinguished by its high ripple rejection and low output noise characteristics compared to standard LDOs.
Replacement Considerations
AP7315-33SR-7 (Same voltage, different SOT23 pinout)
FAQ
Does the AP7315-33SA-7 feature an auto-discharge resistor?
No, the 'SA' suffix indicates the non-discharge version. The discharge variant is designated with a 'D' in the part number.
What is the recommended capacitor value for stability?
A minimum 0.47μF ceramic capacitor is recommended for both input and output to ensure stability and transient response.
