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Product Detailed Parameters
- Description：IC REG LINEAR POS ADJ 1.5A 10DFN
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Adjustable
- Number of Regulators：1
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：3.3V
- Voltage Dropout (Max)：1.7V @ 1.5A
- Current - Output：1.5A
- Current - Quiescent (Iq)：-
- Current - Supply (Max)：-
- PSRR：60dB ~ 30dB (1kHz ~ 300kHz)
- Control Features：Enable, Power Good, Soft Start
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：10-UFDFN Exposed Pad
- Supplier Device Package：U-DFN3030-10
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Overview
The AP7173-FNG-7 is a 1.5A low-dropout linear regulator manufactured by Diodes Incorporated in a DFN3030-10 package. It features a user-programmable soft-start, an enable input, and a power-good output. The device operates with an input voltage range of 1.0V to 5.5V and provides an adjustable output voltage from 0.8V to 3.3V. It maintains 2% accuracy over line, load, and temperature variations. Typical dropout voltage is 165mV at 1.5A with a 5V bias supply.
Feature Summary
- Features a programmable soft-start mechanism that reduces inrush current and minimizes stress on the input power source during startup.
- Includes an enable input and a power-good output to facilitate power management solutions meeting sequencing requirements.
- Utilizes a separate bias supply (VVCC) to permit low VIN operation while maintaining good transient response.
- Stable with any type of output capacitor equal to or greater than 2.2µF.
Applications
- PCs, Servers, Modems, and Set-Top-Boxes
- FPGA Applications
- DSP Core and I/O Voltages
- Post-Regulation Applications
- Applications With Sequencing Requirements
Procurement Notes
Verify the specific suffix 'FNG-7' corresponds to the DFN3030-10 package and tape & reel packaging configuration. Confirm RoHS compliance status and lead-free finish details against the manufacturer's latest documentation. Ensure the ordering code matches the required green molding compound specifications without bromine or antimony.
Selection Notes
Select this component for applications requiring high current capability up to 1.5A with precise voltage regulation. Consider the separate VVCC pin requirement for optimal low dropout performance; tie IN and VCC together only if higher dropout is acceptable. Evaluate thermal resistance and PCB copper area requirements to manage power dissipation within junction temperature limits.
Part Context
This part belongs to the AP7173 series of low-dropout linear regulators designed for demanding power management tasks. It is distinguished by its ability to handle significant load currents while maintaining stability across various output capacitance types. The series supports flexible configuration through external resistors and capacitors for voltage and timing control.
Replacement Considerations
AP7173-SPG-13
FAQ
How is the soft-start time determined?
The soft-start time is programmable by connecting a capacitor between the SS pin and ground. The ramp time depends on the capacitance value and the internal charging current.
What is the function of the VCC pin?
The VCC pin provides the input voltage for internal control circuitry and gate drive. It must be connected to a DC bias supply equal to or higher than VIN to achieve low dropout performance.
