TPS62850220QDRLRQ1集成電路（IC）的穩(wěn)壓器-DC-DC開(kāi)關(guān)穩(wěn)壓器規(guī)格書(shū)PDF中文資料

TPS62850220QDRLRQ1屬于集成電路（IC）的穩(wěn)壓器-DC-DC開(kāi)關(guān)穩(wěn)壓器。由德州儀器制造生產(chǎn)的TPS62850220QDRLRQ1穩(wěn)壓器 - DC-DC 開(kāi)關(guān)穩(wěn)壓器DC-DC 開(kāi)關(guān)穩(wěn)壓器 PMIC（電源管理集成電路）產(chǎn)品族中的產(chǎn)品是元器件級(jí)設(shè)備，用于需要穩(wěn)定 DC 輸入電壓和/或?qū)⑵滢D(zhuǎn)換為不同幅度的輸出電壓的應(yīng)用。這些器件與稱(chēng)為“控制器”P(pán)MIC 的類(lèi)似產(chǎn)品的區(qū)別在于集成了主開(kāi)關(guān)元件，設(shè)備提供的電力會(huì)通過(guò)該元件。

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.