TPS7A5701 Series

5-A, low-input-voltage, low-noise, high-accuracy low-dropout (LDO) voltage regulator

Catalog

5-A, low-input-voltage, low-noise, high-accuracy low-dropout (LDO) voltage regulator

Part	Number of Regulators	Control Features	Package / Case	Voltage - Output (Min/Fixed) [Min]	Output Type	Current - Quiescent (Iq)	Current - Supply (Max) [Max]	Voltage - Output (Max) [Max]	Supplier Device Package	PSRR [Min]	PSRR [Max]	Protection Features	Output Configuration	Mounting Type	Voltage Dropout (Max) [Max]	Current - Output	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Input (Max) [Max]
Texas Instruments TPS7A5701RTER	1	Current Limit Enable Power Good Soft Start Tracking	16-WFQFN Exposed Pad	0.5 V	Adjustable	6.5 mA	24 mA	5.2 V	16-WQFN (3x3)	36 dB	40 dB	Over Current Over Temperature Under Voltage Lockout (UVLO)	Positive	Surface Mount	0.11 V	5 A	-40 °C	125 ¯C	6 V

Catalog

5-A, low-input-voltage, low-noise, high-accuracy low-dropout (LDO) voltage regulator

Key Features

• Input voltage range:Without BIAS: 1.1 V to 6.0 VWith BIAS: 0.7 V to 6.0 VOutput voltage noise: 2.45 µVRMS1% (max) accuracy over line, load, and temperatureLow dropout: 75 mV at 5 APower-supply rejection ratio (5 A):100 dB at 1 kHz78 dB at 10 kHz60 dB at 100 kHz36 dB at 1 MHzSuperior load transient response:±2 mV with a 100-mA to 5-A load stepAdjustable output voltage range: 0.5 V to 5.2 VAdjustable soft-start inrush controlBIAS rail:Internal charge pump or 3-V to 11-V external railInternal charge pump can be disabledOpen-drain, power-good (PG) outputPackage: 3-mm × 3-mm, 16-pin WQFNEVM RθJA: 21.9°C/WInput voltage range:Without BIAS: 1.1 V to 6.0 VWith BIAS: 0.7 V to 6.0 VOutput voltage noise: 2.45 µVRMS1% (max) accuracy over line, load, and temperatureLow dropout: 75 mV at 5 APower-supply rejection ratio (5 A):100 dB at 1 kHz78 dB at 10 kHz60 dB at 100 kHz36 dB at 1 MHzSuperior load transient response:±2 mV with a 100-mA to 5-A load stepAdjustable output voltage range: 0.5 V to 5.2 VAdjustable soft-start inrush controlBIAS rail:Internal charge pump or 3-V to 11-V external railInternal charge pump can be disabledOpen-drain, power-good (PG) outputPackage: 3-mm × 3-mm, 16-pin WQFNEVM RθJA: 21.9°C/W

Description

The TPS7A57 is a low-noise (2.45 µVRMS), ultra-low-dropout linear regulator (LDO) capable of sourcing 5 A with only 75 mV of dropout, independently of the output voltage. The device output voltage is adjustable from 0.5 V to 5.2 V using a single external resistor. The combination of low noise, high PSRR (36 dB at 1 MHz), and high output-current capability makes the TPS7A57 designed for powering noise-sensitive components (such as RF amplifiers, radar sensors, SERDES and analog chipsets) found in radar power, communication, and imaging applications. Digital loads [such as application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and digital signal processors (DSPs)] requiring low-input, low-output (LILO) voltage operation also benefit from the exceptional accuracy (1% over load, line, and temperature), remote sensing, excellent transient performance, and soft-start capabilities to provide optimal system performance. The versatility, performance, and small footprint solution make this LDO an excellent choice for high-current analog loads such as analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and imaging sensors as well as digital loads such as serializer/deserializers (SerDes), FPGAs, and DSPs. The TPS7A57 is a low-noise (2.45 µVRMS), ultra-low-dropout linear regulator (LDO) capable of sourcing 5 A with only 75 mV of dropout, independently of the output voltage. The device output voltage is adjustable from 0.5 V to 5.2 V using a single external resistor. The combination of low noise, high PSRR (36 dB at 1 MHz), and high output-current capability makes the TPS7A57 designed for powering noise-sensitive components (such as RF amplifiers, radar sensors, SERDES and analog chipsets) found in radar power, communication, and imaging applications. Digital loads [such as application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and digital signal processors (DSPs)] requiring low-input, low-output (LILO) voltage operation also benefit from the exceptional accuracy (1% over load, line, and temperature), remote sensing, excellent transient performance, and soft-start capabilities to provide optimal system performance. The versatility, performance, and small footprint solution make this LDO an excellent choice for high-current analog loads such as analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and imaging sensors as well as digital loads such as serializer/deserializers (SerDes), FPGAs, and DSPs.