Automotive 4-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout (LDO) voltage regulator
Product details
Parameters
Package | Pins | Size
Features
- Qualified for Automotive Applications
- AEC-Q100 Qualified for Automotive Applications
- Temperature Grade 1: –40°C ≤ TA ≤ +125°C
- HBM ESD Classification Level 2
- CDM ESD Classification Level C4A
- Extended Junction Temperature (TJ) Range: –40°C to +150°C
- Input Voltage Range:
- Without BIAS: 1.4 V to 6.5 V
- With BIAS: 1.1 V to 6.5 V
- Adjustable Output Voltage Range: 0.8 V to 5.1 V
- Low Dropout: 240 mV (max) at 4 A With BIAS
- Output Voltage Noise: 4.4 µVRMS
- 1% (max) Accuracy Over Line, Load, and Temperature With BIAS
- Power-Supply Ripple Rejection:
- 40 dB at 500 kHz
- Adjustable Soft-Start Inrush Control
- Open-Drain, Power-Good (PG) Output
- 3.5-mm × 3.5-mm, 20-Pin VQFN Package
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Description
The TPS7A54-Q1 device is a low-noise (4.4 µVRMS), low-dropout linear regulator (LDO) capable of sourcing 4 A with only 240 mV of maximum dropout. The device output voltage is adjustable from 0.8 V to 5.1 V using an external resistor divider.
The combination of low-noise (4.4 µVRMS), high-PSRR, and high output current capability makes the TPS7A54-Q1 ideal to power noise-sensitive components such as those found in radar power and infotainment applications. The high performance of this device limits power-supply-generated phase noise and clock jitter, making this device ideal for powering RF amplifiers, radar sensors, and chipsets. 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 (1% over load and temperature), remote sensing, excellent transient performance, and soft-start capabilities of the TPS7A54-Q1 provides optimal system performance.
The versatility of the TPS7A54-Q1 makes the device a component of choice for many demanding applications.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TPS7A54-Q1 4-A, High-Accuracy, Automotive-Grade, Low-Noise, LDO Voltage Regulator datasheet (Rev. A) | Feb. 28, 2018 |
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 | |
User guide | TPS7A54EVM-006 Evaluation Module User's Guide | Mar. 01, 2018 | |
Technical articles | LDO basics: noise – part 1 | Jun. 14, 2017 | |
More literature | Fundamentals of designing with LDOs in auto battery direct connect applications | Feb. 27, 2017 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The TPS7A54EVM-006 evaluation module (EVM) is designed for a typical configuration to evaluate the operation and performance of the TPS7A54-Q1 device, which is an automotive-grade 4-A low-dropout (LDO) voltage regulator.
The EVM circuit board is configured to be a reference design for engineering (...)
Features
- Automotive grade
- High power-supply ripple rejection: 40 dB at 500 kHz
- Output-voltage noise: 4.4 μVRMS
- Adjustable soft-start in-rush control
- Open-drain power-good (PG) output
Design tools & simulation
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
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Support & training
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