TPS628503-Q1中文资料德州仪器数据手册PDF规格书

1 Features

• AEC-Q100 qualified for automotive applications

– Device temperature grade 1:

–40°C to +125°C TA

• Functional Safety-Capable

– Documentation available to aid functional safety

system design

• Optimized for low EMI requirements

– Optional pseudo-random spread spectrum

reduces peak emissions

• TJ = –40°C to +150°C

• Family of 1-A and 2-A (continuous) and 3-A (peak)

converters

• Input voltage range: 2.7 V to 6 V

• Quiescent current: 17 μA typical

• Output voltage from 0.6 V to 5.5 V

• Output voltage accuracy ±1 (PWM operation)

• Forced PWM or PWM/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

• Foldback overcurrent protection – optional

• Power-good output with window comparator

2 Applications

• ADAS camera, ADAS sensor fusion

• Surround view ECU

• Hybrid and reconfigurable cluster

• Head unit, telematics control unit

• External amplifier

3 Description

The TPS62850x-Q1 is a family of pin-to-pin 1-A, 2-

A (continuous), and 3-A (peak) high efficiency, easyto-

use synchronous step-down DC/DC converters.

These devices are based on a peak current mode

control topology. These devices are designed for

automotive applications such as infotainment and

advanced driver assistance systems. Low resistive

switches allow up to 2-A continuous output current

and 3-A peak current. In the TPS62850x-Q1, the

switching frequency is externally adjustable from 1.8

MHz to 4 MHz. The devices can also be synchronized

to an external clock in the same frequency range.

In PWM/PFM mode, the devices automatically enter

power save mode at light loads to maintain high

efficiency across the whole load range. The family

provides a 1 output voltage accuracy in PWM mode

which helps design a power supply with high output

voltage accuracy.

The TPS62850x-Q1 are available in a SOT583

package.