Automotive 2.75-V to 6-V, 2-A step-down converter in a 2mm x 3mm wettable-flanks QFN package
Product details
Parameters
Features
- AEC-Q100 qualified for automotive applications
- Device temperature grade 1: –40°C to +125°C TA
- Functional Safety-Capable
- Input voltage range: 2.75 V to 6 V
- Family of 1 A, 2 A, 3 A and 4 A
- Quiescent current 15-µA typical
- Output voltage from 0.6 V to 5.5 V
- Output voltage accuracy ±1% (PWM operation)
- Adjustable soft start
- Forced PWM or PWM and PFM operation
- Adjustable switching frequency of 1.8 MHz to 4 MHz
- Precise ENABLE input allows
- User-defined undervoltage lockout
- Exact sequencing
- 100% duty cycle mode
- Active output discharge
- Spread spectrum clocking - optional
- Power good output with window comparator
- Package with wettable flanks
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Description
The TPS6281x-Q1 is family of pin-to-pin 1-A, 2-A, 3-A and 4-A synchronous step-down DC/DC converters. All devices offer high efficiency and ease of use. The TPS6281x-Q1 family is based on a peak current mode control topology. TPS6281x-Q1 is designed for automotive applications such as Infotainment and advanced driver assistance systems. Low resistive switches allow up to 4-A continuous output current at high ambient temperature. The switching frequency is externally adjustable from 1.8 MHz to 4 MHz and can also be synchronized to an external clock in the same frequency range. In PWM/PFM mode, the TPS6281x-Q1 automatically enter Power Save Mode at light loads to maintain high efficiency across the whole load range. The TPS6281x-Q1 provide 1% output voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy. The SS/TR pin allows setting the start-up time or forming tracking of the output voltage to an external source. This allows external sequencing of different supply rails and limiting the inrush current during start-up.
The TPS6281x-Q1 is available in a 3-mm x 2-mm VQFN package with wettable flanks.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The TPS62810EVM-015 evaluation module (EVM) is designed to help the user easily evaluate and test the operation and functionality of the TPS6281X-Q1 automotive step-down converter family. The EVM converts a 2.7-V to 6.0-V input voltage to a regulated 1.8-V output voltage that delivers up to 4 A.
Features
- 2.7-V to 6.0-V input voltage range
- 0.6-V to 5.5-V adjustable output voltage
- Adjustable switching frequency of 1.8 MHz to 4 MHz
- 15-μA operating quiescent current
- Power Save Mode for light-load efficiency
- 100% duty cycle for lowest dropout
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Reference designs
Design files
-
download PMP30785 BOM.pdf (177KB) -
download PMP30785 Assembly Drawing.pdf (290KB) -
download PMP30785 PCB.pdf (1226KB) -
download PMP30785 CAD Files.zip (1037KB) -
download PMP30785 Gerber.zip (630KB)
Design files
-
download PMP22063 BOM.pdf (58KB) -
download PMP22063 Assembly Drawing.pdf (116KB) -
download PMP22063 PCB.pdf (823KB) -
download PMP22063 CAD Files.zip (703KB) -
download PMP22063 Gerber.zip (1476KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
(RWY) | 9 | 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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