Description 

The AP7173 is a 1.5A low-dropout (LDO) linear regulator that features a user-programmable soft-start, an enable input and a power-good output. The soft-start reduces inrush current of the load capacitors and minimizes stress on the input power source during start-up. The enable input and power-good output allow users to configure power management solutions that can meet the sequencing requirements of FPGAs, DSPs, and other applications with different start-up and power-down requirements. The AP7173 is stable with any type of output capacitor of 2.2µF or more. A precision reference and feedback control deliver 2% accuracy over load, line, and operating temperature ranges. The AP7173 is available in both DFN3030-10 and SO-8EP packages.

Features 

● Low VIN and wide VIN range: 1.0V to 5.5V 

 ● Bias voltage (VVCC) range: 2.7V to 5.5V 

 ● Low VOUT range: 0.8V to 3.3V 

 ● Low dropout: 165mV typical at 1.5A, VVCC = 5V 

 ● 2% accuracy over line, load and temperature range 

 ● Power-Good (PG) output for supply monitoring and for sequencing of other supplies 

 ● Programmable soft-start provides linear voltage startup 

 ● Bias supply permits low VIN operation with good transient response 

 ● Stable with any output capacitor ≥ 2.2µF 

 ● DFN3030-10 and SO-8EP: available in “Green” molding compound (No Br, Sb) 

 ● Lead-free finish/ RoHS Compliant (Note 1) 

 Applications 

• PCs, Servers, Modems, and Set-Top-Boxes 

 • FPGA Applications 

• DSP Core and I/O Voltages 

• Post-Regulation Applications 

• Applications With Sequencing Requirements

AP7173 Datasheet Download