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Product Detailed Parameters
- Description：IC REG LINEAR 3.3V 150MA SOT-25
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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：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
Download product information
Overview
The AP7315-33W5-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a nominal output voltage of 3.3 V with a guaranteed maximum output current of 150 mA. The device operates within an input voltage range of 1.7 V to 5.25 V and features a typical ripple rejection ratio of 75 dB at 1 kHz. Quiescent current is specified as low as 35 µA, while the output noise voltage is typically 60 µVrms across a frequency band from 10 Hz to 100 kHz. The component is housed in a SOT-25 package and supports an operating ambient temperature range from -40 °C to +85 °C.
Feature Summary
- Integrated enable pin for power control
- High ripple rejection performance
- Low output noise characteristics
- Built-in short circuit protection
Applications
- Smart Phone/PAD
- RF Supply
- Cameras
- Portable Videos
- Wireless Adapters
Procurement Notes
Verify that the specific part number matches the required package type and output voltage configuration before procurement. Confirm compliance with environmental directives such as RoHS and Halogen-free status if mandated by project specifications. Ensure the ordering suffix corresponds to the correct packaging format, specifically tape and reel quantities, to align with manufacturing assembly requirements.
Selection Notes
Select this component when a stable 3.3 V rail is required for low-power portable electronics. The integrated enable feature allows for system-level power management. Verify that the input voltage remains within the specified operational limits to maintain regulation. Consider the thermal dissipation capabilities of the SOT-25 package under maximum load conditions to ensure reliable operation within the designated temperature range.
Part Context
This component belongs to the AP7315 series of low dropout regulators designed for handheld communication equipment. The series utilizes a CMOS process to achieve high output voltage accuracy and low power consumption. It includes internal voltage reference, error amplifier, and current limit circuits. The family offers various fixed output voltages and packages to support dense PCB layouts.
Replacement Considerations
AP7315D-33W5-7
FAQ
What is the function of the EN pin?
The EN pin enables or disables the regulator. Driving it high turns the regulator on, while pulling it low activates shutdown mode.
How does the device handle short circuits?
Short circuit protection triggers when the output is shorted to ground, clamping the output current to approximately 60 mA to prevent damage.
