TPS74401 Series

3-A, low-VIN (0.8-V), low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator

Catalog

3-A, low-VIN (0.8-V), low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator

Part	Voltage Dropout (Max) [Max]	Package / Case	Voltage - Output (Max) [Max]	Mounting Type	Voltage - Input (Max) [Max]	Supplier Device Package	Current - Output	Number of Regulators	Protection Features	Output Type	Operating Temperature [Max]	Operating Temperature [Min]	PSRR [Max]	PSRR [Min]	Output Configuration	Voltage - Output (Min/Fixed)	Control Features	Voltage - Output	Board Type	Channels per IC	Voltage - Input [Max]	Voltage - Input [Min]	Supplied Contents	Regulator Type	Current - Supply (Max) [Max]
Texas Instruments TPS74401KTWR	0.24 V	D2PAK (7 Leads + Tab) TO-263-8 TO-263CA	3.6 V	Surface Mount	5.5 V	TO-263 (DDPAK-7)	3 A	1	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	Adjustable	125 °C	-40 °C	73 dB	50 dB	Positive	0.8 V	Enable Power Good Soft Start
Texas Instruments TPS74401KTWRG3	0.24 V	D2PAK (7 Leads + Tab) TO-263-8 TO-263CA	3.6 V	Surface Mount	5.5 V	TO-263 (DDPAK-7)	3 A	1	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	Adjustable	125 °C	-40 °C	73 dB	50 dB	Positive	0.8 V	Enable Power Good Soft Start
Texas Instruments TPS74401EVM-118							3 A											1.2 V	Fully Populated	1 - Single	5.25 V	1.3 V	Board(s)	Positive Adjustable
Texas Instruments TPS74401RGRT	0.24 V	20-VFQFN Exposed Pad	3.6 V	Surface Mount	5.5 V		3 A	1	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	Adjustable	125 °C	-40 °C	73 dB	50 dB	Positive	0.8 V	Enable Power Good Soft Start
Texas Instruments TPS74401RGWRG4	0.24 V	20-VQFN Exposed Pad	3.6 V	Surface Mount	5.5 V	20-VQFN (5x5)	3 A	1	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	Adjustable	125 °C	-40 °C	73 dB	50 dB	Positive	0.8 V	Enable Power Good Soft Start
Texas Instruments TPS74401RGRR	0.24 V	20-VFQFN Exposed Pad	3.6 V	Surface Mount	5.5 V		3 A	1	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	Adjustable	125 ¯C	-40 °C	73 dB	50 dB	Positive	0.8 V	Enable								100 çA
Texas Instruments TPS74401RGWTG4	0.24 V	20-VQFN Exposed Pad	3.6 V	Surface Mount	5.5 V	20-VQFN (5x5)	3 A	1	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	Adjustable	125 °C	-40 °C	73 dB	50 dB	Positive	0.8 V	Enable Power Good Soft Start

Catalog

3-A, low-VIN (0.8-V), low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator

Key Features

• Input voltage range: 1.1V to 5.5VAdjustable start-up in-rush control1% accuracy over line, load, and temperatureVBIAS permits low VIN operation with good transient responseAdjustable output: 0.8V to 3.6VUltra-low dropout:115mV (typical) (legacy chip) at 3.0A120mV (typical) (new chip) at 3.0AStable with any or no output capacitor (legacy chip)Stable with any output capacitor ≥2.2µF (new chip)Power-good (PG) output allows supply monitoring or provides a sequencing signal for other suppliesPackages:5mm × 5mm × 1mm VQFN (RGW)3.5mm × 3.5mm VQFN (RGR), and DDPAK-7 (legacy chip only)Input voltage range: 1.1V to 5.5VAdjustable start-up in-rush control1% accuracy over line, load, and temperatureVBIAS permits low VIN operation with good transient responseAdjustable output: 0.8V to 3.6VUltra-low dropout:115mV (typical) (legacy chip) at 3.0A120mV (typical) (new chip) at 3.0AStable with any or no output capacitor (legacy chip)Stable with any output capacitor ≥2.2µF (new chip)Power-good (PG) output allows supply monitoring or provides a sequencing signal for other suppliesPackages:5mm × 5mm × 1mm VQFN (RGW)3.5mm × 3.5mm VQFN (RGR), and DDPAK-7 (legacy chip only)

Description

The TPS74401 low-dropout (LDO) linear regulators provide an easy-to-use robust power-management option for a wide variety of applications. The 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 designed for powering many different types of processors and application-specific integrated circuits (ASICs). The enable input and power-good output allow easy sequencing with external regulators. Complete flexibility lets the user configure a plan that meets the sequencing requirements of field-programmable gate arrays (FPGAs), digital signal processors (DSPs), and other applications with specific start-up requirements. A precision reference and error amplifier deliver 1% accuracy over load, line, temperature, and process. The device is stable without an output capacitor (legacy chip) or with any type of capacitor ≥ 2.2µF (new chip). The device is fully specified from TJ = –40°C to 125°C. The TPS74401 low-dropout (LDO) linear regulators provide an easy-to-use robust power-management option for a wide variety of applications. The 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 designed for powering many different types of processors and application-specific integrated circuits (ASICs). The enable input and power-good output allow easy sequencing with external regulators. Complete flexibility lets the user configure a plan that meets the sequencing requirements of field-programmable gate arrays (FPGAs), digital signal processors (DSPs), and other applications with specific start-up requirements. A precision reference and error amplifier deliver 1% accuracy over load, line, temperature, and process. The device is stable without an output capacitor (legacy chip) or with any type of capacitor ≥ 2.2µF (new chip). The device is fully specified from TJ = –40°C to 125°C.