AP7173

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.

Feature(s)

Low V_IN and wide V_IN range: 1.0V to 5.5V

Bias voltage (V_VCC) range: 2.7V to 5.5V

Low V_OUT range: 0.8V to 3.3V

Low dropout: 165mV typical at 1.5A, V_VCC = 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

Application(s)

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

FPGA Applications

DSP Core and I/O Voltages

Post-Regulation Applications

Applications With Sequencing Requirements