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AP7343D-105FS4-7B 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 1.05V X2-DFN10104. Review the specifications below when checking this part for your BOM.
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators specifications for AP7343D-105FS4-7B
- Description：IC REG LINEAR 1.05V X2-DFN10104
- 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)：1.05V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.7V @ 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：4-XDFN Exposed Pad
- Supplier Device Package：X2-DFN1010-4
- Grade：-
- Qualification：-
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators datasheet and documents for AP7343D-105FS4-7B
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview
The AP7343D-105FS4-7B is a fixed-output low dropout regulator providing 1.05V at up to 300mA. It operates with an input voltage range of 1.7V to 5.25V and features high power supply rejection ratio of 75dB at 1kHz. The device includes an enable pin, thermal shutdown, and short-circuit protection. It utilizes X2-DFN1010-4 (Type B) packaging for compact PCB layouts.
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary
- Integrated enable control for power management
- High ripple rejection capability
- Low output noise performance
- Built-in thermal and current limit protection
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications
- Smart phones/tablets
- RF supplies
- Cameras
- Portable videos
- Wireless communication
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes
Verify the specific ordering suffix FS4-7B corresponds to the required X2-DFN1010-4 package and tape-and-reel quantity. Confirm that the 'D' designation indicates the presence of the auto-discharge feature on the output pin, as this affects circuit behavior during shutdown states compared to non-discharge variants.
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes
Select this component when a precise 1.05V rail is required for low-power logic or sensor interfaces. Ensure the input voltage remains within the specified 1.7V to 5.25V range. Consider the thermal resistance characteristics if operating near maximum load currents in confined spaces.
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context
This part belongs to the AP7343 family of 300mA LDOs from Diodes Incorporated. The series offers various fixed output voltages and packages, including SOT25. The AP7343D variant specifically integrates an N-channel discharge resistor to rapidly remove charge from the output capacitor when disabled.
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations
AP7343-105FS4-7B
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators FAQ
What is the function of the EN pin?
The EN pin controls the regulator's operation. Driving it high enables the output, while pulling it low shuts down the device.
Does this part include output discharge?
Yes, the 'D' in the part number indicates an integrated N-channel discharge resistor that bleeds off output voltage when the device is disabled.
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