ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC REG LINEAR 3.3V 150MA SOT-25
- 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：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
- Grade：-
- Qualification：-
Download product information
Overview
The AP7315D-33W5-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a nominal output voltage of 3.3V with a guaranteed maximum output current of 150mA. The device operates within an input voltage range of 1.7V to 5.25V and features a typical ripple rejection ratio of 75dB at 1kHz. Quiescent current is specified as low as 35µA, while the output noise voltage is 60µVrms across a 10Hz to 100kHz bandwidth. The component utilizes an SOT25-5 package and includes an integrated enable pin for power control.
Feature Summary
- Integrated N-channel auto-discharge circuit that actively pulls down the output voltage when the device is disabled
- High supply voltage ripple rejection capability designed to minimize noise in sensitive analog circuits
- Low output noise performance suitable for powering RF and communication modules
- Built-in thermal protection and fold-back short-circuit current limiting
Applications
- Smartphone and tablet power management
- RF supply lines
- Camera module power regulation
- Portable video equipment
- Wireless adapters and communication devices
Procurement Notes
Verify the specific suffix 'D' confirms the inclusion of the internal discharge feature, as standard versions lack this function. Confirm the 'W5' suffix corresponds to the SOT25 package type required for your PCB layout. Ensure the ordering code matches the exact 3.3V fixed output specification. Cross-reference the datasheet revision to confirm electrical characteristics remain consistent with your design requirements.
Selection Notes
Select this variant over non-discharge models if rapid output voltage decay is required upon shutdown. The SOT25 package offers a compact footprint suitable for dense layouts. Verify that the input voltage remains within the 1.7V to 5.25V operating range to ensure stable regulation. Consider the 150mA current limit when designing for peak load conditions.
Part Context
This component belongs to the AP7315 series of CMOS low dropout regulators from Diodes Incorporated. The series is engineered for low-power handheld applications requiring high precision and low noise. The AP7315 family is available in multiple packages including X2-DFN1010-4, SOT23, and SOT25, providing flexibility for various board space constraints.
Replacement Considerations
AP7315-33W5-7 (Non-discharge version)
FAQ
What is the function of the 'D' suffix in the part number?
The 'D' suffix indicates that the regulator includes an internal N-channel auto-discharge resistor connected between the output and ground. This feature actively discharges the output capacitor when the enable pin is pulled low.
How does the enable pin operate?
The EN pin controls the state of the regulator. Driving the pin high enables the output, while pulling it low disables the regulator and activates the discharge circuit. The pin must not be left floating during operation.
