Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

SO-8EP-package-image.png

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

DFN3030-10.png

Back to Linear and Low Dropout (LDO) Regulators

AP7173

1.5A Low Dropout Linear Regulator with Programmable Soft-Start

Datasheet

Contact Sales

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

Product Specifications

Product Parameters

Iq (max) (µA)	2000
Iq (typ) (?A)	1000
AEC Qualified	No
Compliance (Only Automotive supports PPAP)	Standard
Type	LDO
Output options	Adjustable
Iout (A)	1.5
Vin (Max) (V)	5.5
Vin (Min) (V)	1
Vout (min)	0.8
Vout (max)	3.6
Adjustable VFB (V)	0.8
Accuracy 25C	1
VDROPOUT (Max) (V) at Max Current and Max Ouput Voltage	0.27
PSRR (dB) 1kHz	60
Operating Temperature (Ambient) (°C)	-40 to 85
Enable Active	Yes (High)
Channels	1
Output Discharge	No
Power Good	Open Drain
Reverse Protection	No
VCTL Function	Yes

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2512	2021-04-16	2021-07-16	Qualified Additional Assembly & Test (A/T) Site