3-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout voltage regulator with power good
Product details
Parameters
Package | Pins | Size
Features
- 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
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Description
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.
Exact equivalent in functionality and parametrics to the compared device:
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TPS7A84A 3-A, High-Accuracy (0.75%), Low-Noise (4.4-µVRMS) LDO Regulator datasheet (Rev. C) | Dec. 16, 2020 |
Technical article | LDO basics: capacitor vs. capacitance | Aug. 01, 2018 | |
Technical article | LDO Basics: Preventing reverse current | Jul. 25, 2018 | |
Technical article | LDO basics: introduction to quiescent current | Jun. 20, 2018 | |
Technical article | LDO basics: noise – part 1 | Jun. 14, 2017 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- Low Dropout: 180 mV (max) at 3 A
- 1% (max) Accuracy Over Line, Load, and Temperature
- ANY-OUT Output Voltage Range: 0.8 V to 3.95 V
- Adjustable Output Voltage Range: 0.8 V to 5.0 V
- High Power-Supply Ripple Rejection: 40 dB at 500 kHz
Design tools & simulation
Reference designs
Design files
-
download TIDA-01027 BOM.pdf (209KB) -
download TIDA-01027 Assembly Drawing.pdf (878KB) -
download TIDA-01027 PCB.pdf (2971KB) -
download TIDA-01027 CAD Files.zip (2870KB) -
download TIDA-01027 Gerber.zip (765KB)
Design files
-
download TIDA-01232 BOM.pdf (61KB) -
download TIDA-01232 Assembly Drawing.pdf (160KB) -
download TIDA-01232 PCB.pdf (659KB) -
download TIDA-01232 Altium.zip (658KB) -
download TIDA-01232 Gerber.zip (790KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
VQFN (RGR) | 20 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
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