TPS7A74 Series

1.5-A low-dropout (LDO) linear regulator with programmable soft start

Catalog

1.5-A low-dropout (LDO) linear regulator with programmable soft start

Part	Mounting Type	Output Type	Voltage - Input (Max) [Max]	Package / Case	Voltage - Output (Min/Fixed) [Min]	Voltage - Output (Max) [Max]	Current - Output	PSRR [Max]	PSRR [Min]	Control Features	Protection Features	Number of Regulators	Current - Quiescent (Iq)	Operating Temperature [Min]	Operating Temperature [Max]	Supplier Device Package	Output Configuration	Voltage Dropout (Max) [Max]
Texas Instruments TPS7A7401DSDR	Surface Mount	Adjustable	6.1 V	8-WDFN Exposed Pad	0.65 V	3.6 V	1.5 A	70 db	50 dB	Current Limit Enable Soft Start	Over Current Over Temperature	1	330 µA	-40 °C	125 ¯C	8-WSON (3x3)	Positive	0.18 V

Catalog

1.5-A low-dropout (LDO) linear regulator with programmable soft start

Key Features

• VOUTrange: 0.65 V to 3.6 VUltra-low VINrange: 0.65 V to 6 VVBIASrange: 1.7 V to 6 VLow dropout: 150 mV typical at 1.5 A, VBIAS= 5 VNoise: 7.1 µVRMSPSRR:70 dB at 1 kHz60 dB at 10 kHz55 dB at 100 kHz50 dB at 1 MHz1.5% accuracy over line, load, and temperatureProgrammable soft-start provides linear voltage start-upVBIASpermits low VINoperation with good transient responseUVLO on both IN and BIASStable with any output capacitor ≥ 10 µFPackage: Small, 3-mm × 3-mm × 0.8-mm WSON-8VOUTrange: 0.65 V to 3.6 VUltra-low VINrange: 0.65 V to 6 VVBIASrange: 1.7 V to 6 VLow dropout: 150 mV typical at 1.5 A, VBIAS= 5 VNoise: 7.1 µVRMSPSRR:70 dB at 1 kHz60 dB at 10 kHz55 dB at 100 kHz50 dB at 1 MHz1.5% accuracy over line, load, and temperatureProgrammable soft-start provides linear voltage start-upVBIASpermits low VINoperation with good transient responseUVLO on both IN and BIASStable with any output capacitor ≥ 10 µFPackage: Small, 3-mm × 3-mm × 0.8-mm WSON-8

Description

The TPS7A74 low-dropout (LDO) linear regulator provides an easy-to-use robust power management solution for a wide variety of applications. User-programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current on start up. The soft-start is monotonic and well-suited for powering many different types of processors and application-specific integrated circuits (ASICs). The enable input allows for easy sequencing with external regulators. This complete flexibility allows a solution to be configured that meets the sequencing requirements of field-programmable gate arrays (FPGAs), digital signal processors (DSPs), and other applications with special start-up requirements. A precision reference and error amplifier deliver 1.5% accuracy over load, line, temperature, and process. The device is stable with any type of capacitor greater than or equal to 10 µF, and is fully specified for TJ= –40°C to +125°C. The TPS7A74 is offered in a small, 3-mm × 3-mm, WSON-8 package, yielding a highly compact, total solution size. The TPS7A74 low-dropout (LDO) linear regulator provides an easy-to-use robust power management solution for a wide variety of applications. User-programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current on start up. The soft-start is monotonic and well-suited for powering many different types of processors and application-specific integrated circuits (ASICs). The enable input allows for easy sequencing with external regulators. This complete flexibility allows a solution to be configured that meets the sequencing requirements of field-programmable gate arrays (FPGAs), digital signal processors (DSPs), and other applications with special start-up requirements. A precision reference and error amplifier deliver 1.5% accuracy over load, line, temperature, and process. The device is stable with any type of capacitor greater than or equal to 10 µF, and is fully specified for TJ= –40°C to +125°C. The TPS7A74 is offered in a small, 3-mm × 3-mm, WSON-8 package, yielding a highly compact, total solution size.