Shenzhen Meiyuxin Technology Co., Ltd.【Specialize in TI products】TPS62402QDRCRQ1 Automotive Class, Dual Channel, Fixed Output Voltage, 400mA and 600mA, 2.25MHz Step-Down Converter with Single Bus Interface! ! !

Description

The TPS62402QDRCRQ1  family of devices are synchronous dual step-down DC-DC converters optimized for battery-powered portable applications and automotive systems. They provide two independent output voltage rails powered by rechargeable batteries or standard 3.3-V or 5-V voltage rail.

The EasyScale™ serial interface allows output-voltages modification during operation. The fixed-output-voltage versions, TPS62402QDRCRQ1  support one-pin-controlled simple dynamic voltage scaling for low-power processors.

TPS62402QDRCRQ1  operates at 2.25-MHz fixed switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load-current range. For low-noise applications, one can force the devices into fixed-frequency PWM mode by pulling the MODE/DATA pin high. The shutdown mode reduces the current consumption to 1.2-µA, typical. The devices allow the use of small inductors and capacitors to achieve a small solution size.

Features

• Qualified for automotive applications

• AEC-Q100 qualified with the following results:

– Device temperature grade 1: –40°C to 125°C operating junction temperature range

– Device HBM ESD classification level H2

– Device CDM ESD classification level C4B

• High efficiency—up to 95%

• VIN Range from 2.5 V to 6 V

• 2.25-MHz Fixed-frequency operation

• Output current 400 mA and 600 mA

• Adjustable output voltage from 0.6 V to VIN

• Pin selectable output voltage supports simple dynamic voltage scaling

• EasyScale™ optional one-pin serial interface

• Power-save mode at light load currents

• 180° Out-of-phase operation

• Output-voltage accuracy in PWM mode ±1%

• Typical 32-μA quiescent current for both converters

• 100% Duty cycle for lowest dropout

Applications

• Infotainment and cluster

• ADAS