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AP7343D-33W5-7 is listed in the Voltage Regulators - Linear, Low Drop Out (LDO) Regulators range at ChipApex. The manufacturer field lists Diodes Incorporated. Its product description is IC REG LINEAR 3.3V 300MA SOT-25. Review the specifications below when checking this part for your BOM.
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators specifications for AP7343D-33W5-7
- Description：IC REG LINEAR 3.3V 300MA 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 @ 300mA
- Current - Output：300mA
- Current - Quiescent (Iq)：60 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：-
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators datasheet and documents for AP7343D-33W5-7
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview
The AP7343D-33W5-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a stable 3.3V output with a guaranteed maximum current of 300mA. 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 typically 60µVrms across a 10Hz to 100kHz bandwidth. The unit utilizes an SOT25-5 surface-mount package and includes an enable pin for power control.
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary
- Integrated CMOS architecture providing high output voltage accuracy and low on-resistance
- Built-in thermal shutdown and fold-back short-circuit protection mechanisms
- Low quiescent current consumption optimized for battery-powered applications
- High power supply ripple rejection capability for sensitive RF circuits
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications
- Smart phones and tablets
- RF power supplies
- Portable video devices
- Wireless communication adapters
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes
Verify the specific suffix 'D' indicates the presence of an internal auto-discharge feature connected to the enable pin. Confirm the 'W5' designation corresponds to the SOT25-5 package variant. Ensure the ordering code matches the required tape and reel quantity specifications provided in the manufacturer's documentation.
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes
Select this component when a fixed 3.3V rail is required with minimal footprint constraints. The SOT25 package supports dense PCB layouts compared to larger alternatives. Consider the enable pin functionality for system power management sequences. Verify that the input voltage remains within the 1.7V to 5.25V operational window under all load conditions.
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context
This part belongs to the AP7343 series of high PSRR low-noise LDOs from Diodes Incorporated. The series offers various fixed output voltages ranging from 0.9V to 3.6V. The 'D' suffix distinguishes it from non-discharge variants, adding an N-channel discharge resistor for faster output voltage decay upon shutdown.
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations
AP7343-33W5-7 (Non-discharge version)
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators FAQ
What is the function of the EN pin?
The Enable pin controls the regulator state; driving it high activates the output, while pulling it low initiates shutdown mode.
Does this device include output discharge?
Yes, the 'D' in the part number indicates an integrated N-channel auto-discharge resistor that pulls down the output voltage when disabled.
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