TPS6281228 Series
Automotive 2.75-V to 6-V, 2-A step-down converter in a 2mm x 3mm wettable-flanks QFN package
Manufacturer: Texas Instruments
Catalog(1 parts)
| Part | Output Type▲▼ | Package / Case | Topology | Function | Qualification | Current - Output▲▼ | Number of Outputs▲▼ | Voltage - Output (Min/Fixed)▲▼ | Grade | Operating Temperature▲▼ | Operating Temperature▲▼ | Mounting Type | Output Configuration | Voltage - Input (Max)▲▼ | Supplier Device Package | Frequency - Switching▲▼ | Frequency - Switching▲▼ | Synchronous Rectifier▲▼ | Voltage - Input (Min)▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS6281228QWRWYRQ1Buck Switching Regulator IC Positive Fixed 1.1V 1 Output 2A 9-VFQFN | 27.030000686645508 °C/W | 9-VFQFN | Buck | Step-Down | AEC-Q100 | 2 A | 1 ul | 1.100000023841858 V | Automotive | -40 °C | 125 °C | Surface Mount, Wettable Flank | Positive | 6 V | 9-VQFN-HR (3x2) | 4000000 Hz | 1800000 Hz | 2.75 V |
Key Features
• AEC-Q100 qualified for automotive applicationsDevice temperature grade 1: –40°C to +125°C TAFunctional Safety-CapableDocumentation available to aid functional safety system designInput voltage range: 2.75 V to 6 VFamily of 1 A, 2 A, 3 A and 4 AQuiescent current 15-µA typicalOutput voltage from 0.6 V to 5.5 VOutput voltage accuracy ±1% (PWM operation)Adjustable soft startForced PWM or PWM and PFM operationAdjustable switching frequency of 1.8 MHz to 4 MHzPrecise ENABLE input allowsUser-defined undervoltage lockoutExact sequencing100% duty cycle modeActive output dischargeSpread spectrum clocking - optionalPower-good output with window comparatorPackage with wettable flanksAEC-Q100 qualified for automotive applicationsDevice temperature grade 1: –40°C to +125°C TAFunctional Safety-CapableDocumentation available to aid functional safety system designInput voltage range: 2.75 V to 6 VFamily of 1 A, 2 A, 3 A and 4 AQuiescent current 15-µA typicalOutput voltage from 0.6 V to 5.5 VOutput voltage accuracy ±1% (PWM operation)Adjustable soft startForced PWM or PWM and PFM operationAdjustable switching frequency of 1.8 MHz to 4 MHzPrecise ENABLE input allowsUser-defined undervoltage lockoutExact sequencing100% duty cycle modeActive output dischargeSpread spectrum clocking - optionalPower-good output with window comparatorPackage with wettable flanks
Description
AI
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. The 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 feature allows external sequencing of different supply rails and limiting the inrush current during start-up.
The TPS6281x-Q1 is available in a 3-mm × 2-mm VQFN package with wettable flanks.
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. The 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 feature allows external sequencing of different supply rails and limiting the inrush current during start-up.
The TPS6281x-Q1 is available in a 3-mm × 2-mm VQFN package with wettable flanks.