Packaging information
| Package | Pins VQFN (RGR) | 20 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 3,000 | LARGE T&R |
Features for the TPS7A84A
- Low dropout: 180 mV (maximum) at 3 A with BIAS
- 0.75% (maximum) accuracy over line, load, and temperature with BIAS
- Output voltage noise: 4.4 µVRMS
- Input voltage range:
- Without BIAS: 1.4 V to 6.5 V
- With BIAS: 1.1 V to 6.5 V
- TPS7A8400A output voltage range:
- Adjustable operation: 0.8 V to 5.15 V
- ANY-OUT™ operation: 0.8 V to 3.95 V
- TPS7A8401A output voltage range:
- Adjustable operation: 0.5 V to 5.15 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 in-rush control
- Open-drain power-good (PG) output
Description for the TPS7A84A
The TPS7A84A is a low-noise, low-dropout linear regulator (LDO) capable of sourcing 3 A with only 180-mV of maximum dropout. The device is offered in two output voltage ranges. The TPS7A8400A 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 5.15 V using an external resistor divider. The TPS7A8401A 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 5.15 V using an external resistor divider.
The combination of low-noise, high-PSRR, and high output-current capability makes the TPS7A84A ideal to power noise-sensitive components such as those found in high-speed communications, video, medical, or test and measurement applications. The high performance of the TPS7A84A limits power-supply-generated phase noise and clock jitter, making this device ideal for powering high-performance serializer and deserializer (SerDes), analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and RF components. Specifically, RF amplifiers benefit from the high-performance and > 5-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 line, load, and temperature), remote sensing, excellent transient performance, and soft-start capabilities of the TPS7A84A ensure optimal system performance.
The versatility of the TPS7A84A makes the device a component of choice for many demanding applications.