Tps6281220qwrwyrq1 DC-DC power supply chip TI original stock

characteristic

Meets AEC-Q100 standards for automotive applications

Device temperature class 1: – 40 ° C to+125 ° C TA

Provide functional safety

Documents that can help with functional safety system design

Input voltage range: 2.75V to 6V

Series 1A, 2A, 3A and 4A

Quiescent current 15 μ A (typ.)

The output voltage range is 0.6V to 5.5V

Output voltage accuracy is ± 1% (PWM operation)

Adjustable soft start

Forced PWM or PWM and PFM operation

Adjustable switching frequency is 1.8MHz to 4MHz

Precise enable input is available

User defined undervoltage lockout

Exact sort

100% duty cycle mode

Active output discharge

Spread spectrum clock - Optional

Normal output of power supply with window comparator

With wettable side package

explain

TPS6281x-Q1 is a pin to pin 1A, 2A, 3A and 4A synchronous buck DC/DC converter series device. All devices are highly efficient and easy to use. TPS6281x-Q1 series devices control topology based on peak current mode. TPS6281x-Q1 is designed for automotive applications such as infotainment systems and advanced driving aids. The low resistance switch can support continuous output current of up to 4A in high temperature environment. The user can adjust the switching frequency within the range of 1.8MHz to 4MHz through external means, or synchronize it to the external clock within the frequency range. In the PWM/PFM mode, 

TPS6281x-Q1 will automatically enter the power saving mode under light load, so as to maintain high efficiency in the whole load range. TPS6281x-Q1 can provide 1% output voltage accuracy in PWM mode, which helps to achieve power supply design with high output voltage accuracy. Through the SS/TR pin, the startup time can be set or the output voltage supplied to the external source can be tracked. This feature enables external sequencing of different power rails and limits the surge current during start-up.

TPS6281x-Q1 adopts 3mm with wettable side × 2mm vqfn package.