TPS7A83A Texas instruments

TPS7A83A

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TPS7A83A

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Описание

The TPS7A83A is a low-noise (4.4 µVRMS), low-dropout, linear regulator (LDO) capable of sourcing 2 A with only 200 mV of maximum dropout. The TPS7A8300A output voltage is pin programmable from 0.8 V to 3.95 V with a 50-mV resolution, and adjustable from 0.8 V to 5.2 V using an external resistor divider. The TPS7A8301A output voltage is pin programmable from 0.5 V to 2.075 V with a 25-mV resolution, and adjustable from 0.5 V to 5.2 V using an external resistor divider.The combination of low noise , high PSRR, and high output current capability makes the TPS7A83A an excellent choice to power noise-sensitive components such as those found in high-speed communications, video, medical, or test and measurement applications. This device is designed for powering high-performance serializer and deserializer (SerDes), analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and RF components because the high performance of the TPS7A83A limits power-supply-generated phase noise and clock jitter. Specifically, RF amplifiers benefit from the high-performance and 5.2-V output capability of the device.For digital loads [such as application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and digital signal processors (DSPs)] requiring low-input voltage, low-output (LILO) voltage operation, the exceptional accuracy (0.75% over load and temperature), remote sensing, excellent transient performance, and soft-start capabilities of the TPS7A83A ensure optimal system performance.The versatility of the TPS7A83A makes the device a component of choice for many demanding applications.

Low dropout: 200 mV (max) at 2 A
Accuracy over line, load, and temperature with BIAS: 0.75% (max)
Output voltage noise:
- 4.4 µV_RMS at 0.8-V output
Input voltage range:
- Without BIAS: 1.4 V to 6.5 V
- With BIAS: 1.1 V to 6.5 V
TPS7A8300A output voltage range:
- Adjustable operation: 0.8 V to 5.2 V
- ANY-OUT™ operation: 0.8 V to 3.95 V
TPS7A8301A output voltage range:
- Adjustable operation: 0.5 V to 5.2 V
- ANY-OUT™ operation: 0.5 V to 2.075 V
Power-supply ripple rejection:
- 40 dB at 500 kHz
Excellent load transient response
Adjustable soft-start inrush control
Open-drain power-good (PG) output

Output options	Adjustable Output, Programmable Output
Iout (max) (A)	2
Vin (max) (V)	6.5
Vin (min) (V)	1.1
Vout (max) (V)	5.2
Vout (min) (V)	0.8
Noise (µVrms)	4.4
Iq (typ) (mA)	2.8
Thermal resistance θJA (°C/W)	43
Rating	Catalog
Load capacitance (min) (µF)	47
Regulated outputs (#)	1
Features	Enable, Foldback overcurrent protection, Output discharge, Power good, Soft start
Accuracy (%)	0.75
PSRR at 100 KHz (dB)	40
Dropout voltage (Vdo) (typ) (mV)	75
Operating temperature range (°C)	-40 to 125