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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.
PCs, Servers, Modems, and Set-Top-Boxes
DSP Core and I/O Voltages
Applications With Sequencing Requirements
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)