3-A, low-VIN, low-noise, ultra-low-dropout voltage regulator with power good with high-accuracy
Product details
Parameters
Package | Pins | Size
Features
- Low Dropout: 180 mV (max) at 3 A
- 1% (max) Accuracy Over Line, Load, and Temperature
- Output Voltage Noise:
- 4.4 µVRMS at 0.8-V Output
- 7.7 µVRMS at 5.0-V Output
- Input Voltage Range:
- Without BIAS: 1.4 V to 6.5 V
- With BIAS: 1.1 V to 6.5 V
- ANY-OUT&trde; Operation:
- Output Voltage Range: 0.8 V to 3.95 V
- Adjustable Operation:
- Output Voltage Range: 0.8 V to 5.0 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
- Stable with a 47-µF or Larger Ceramic Output Capacitor
- 3.5-mm × 3.5-mm, 20-Pin VQFN
Description
The TPS7A84 is a low-noise (4.4 µVRMS), low-dropout linear regulator (LDO) capable of sourcing 3 A with only 180 mV of maximum dropout. The device output voltage is pin-programmable from 0.8 V to 3.95 V and adjustable from 0.8 V to 5.0 V using an external resistor divider.
The combination of low-noise (4.4 µVRMS), high-PSRR, and high output current capability makes the TPS7A84 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 TPS7A84 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 5.0-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 TPS7A84 ensure optimal system performance.
The versatility of the TPS7A84 makes the device a component of choice for many demanding applications.
Exact equivalent in functionality and parametrics to the compared device:
Similar but not functionally equivalent to the compared device:
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TPS7A84 High-Current (3 A), High-Accuracy (1%), Low-Noise (4.4 µVRMS), LDO Voltage Regulator datasheet (Rev. A) | Jan. 08, 2016 |
Technical articles | LDO basics: capacitor vs. capacitance | Aug. 01, 2018 | |
Technical articles | LDO Basics: Preventing reverse current | Jul. 25, 2018 | |
Technical articles | LDO basics: introduction to quiescent current | Jun. 20, 2018 | |
Selection guide | Low Dropout Regulators Quick Reference Guide (Rev. P) | Mar. 21, 2018 | |
Technical articles | LDO basics: noise – part 1 | Jun. 14, 2017 | |
Selection guide | TI Components for Aerospace and Defense Guide (Rev. E) | Mar. 22, 2017 | |
User guide | TPS7A84EVM-753 Evaluation Module | Feb. 29, 2016 |
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-010128 Assembly Drawing.pdf (2981KB) -
download TIDA-010128 PCB.pdf (28701KB) -
download TIDA-010128 CAD Files.zip (37212KB) -
download TIDA-010128 Gerber.zip (13521KB) -
download TIDA-01028 & TIDA-010128 BOM (Rev. A).pdf (240KB)
Design files
-
download TIDA-010122 BOM.pdf (240KB) -
download TIDA-010122 Assembly Drawing.pdf (2983KB) -
download TIDA-010122 PCB.pdf (28658KB) -
download TIDA-010122 CAD Files.zip (74323KB) -
download TIDA-010122 Gerber.zip (13521KB)
Design files
-
download TIDA-01028 Assembly Drawing.pdf (2940KB) -
download TIDA-01028 PCB.pdf (28699KB) -
download TIDA-01028 CAD Files.zip (41928KB) -
download TIDA-01028 Gerber.zip (13521KB) -
download TIDA-01028 & TIDA-010128 BOM (Rev. A).pdf (240KB)
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-01022 BOM.pdf (132KB) -
download TIDA-01022 Assembly Drawing.pdf (3076KB) -
download TIDA-01022 Layer Plots.zip (14285KB) -
download TIDA-01022 CAD Files.zip (69995KB) -
download TIDA-01022 Gerber.zip (7572KB)
Design files
-
download TIDA-01466 BOM.pdf (172KB) -
download TIDA-01466 Assembly Drawing.pdf (371KB) -
download TIDA-01466 PCB.pdf (1795KB) -
download TIDA-01466 CAD Files.zip (1173KB) -
download TIDA-01466 Gerber.zip (1848KB)
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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