TPS62870QWRXSRQ1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

1 Features

? AEC-Q100 qualified for automotive applications

– Temperature grade 1: –40°C to +125°C, TA

? Functional Safety-Capable

– Documentation available to aid functional safety

system design

– Documentation available to aid functional safety

system design

– Documentation available to aid functional safety

system design

? 2.7-V to 6-V input voltage range

? Family of pin-to-pin compatible devices: 6-A, 9-A,

12-A, and 15-A

? Four output voltage ranges:

– 0.4-V to 0.71875-V in 1.25-mV steps

– 0.4-V to 1.0375-V in 2.5-mV steps

– 0.4-V to 1.675-V in 5-mV steps

– 0.8-V to 3.35-V in 10-mV steps

? Output voltage accuracy ±1

? 7-mΩ and 4.5-mΩ internal power MOSFETs

? Adjustable external compensation

? Resistor-selectable start-up output voltage

? Resistor-selectable switching frequency

? Power-save or forced-PWM operation

? I2C-compatible interface up to 1-MHz

? Differential remote sensing

? Optional stacked operation for increased output

current capability

? Thermal warning and thermal shutdown

? Precise enable input

? Active output discharge

? Optional spread-spectrum clocking

? Power-good output with a window comparator

? Available in 2.55-mm × 3.55-mm × 1-mm VQFN

package with wettable flanks

? –40°C to 150°C junction temperature, TJ

2 Applications

? Infotainment and cluster

? ADAS

? FPGA, ASIC, and digital core supply

? DDR memory supply

3 Description

The TPS6287x-Q1 is a family of pin-to-pin 6-A, 9-

A, 12-A, and 15-A synchronous step-down DC/DC

converters with differential remote sensing. For each

current rating, there are full-featured device variants

with I2C interface and limited-featured device variants

without I2C interface. All devices offer high efficiency

and ease of use. Low-resistance power switches

allow up to 15-A continuous output current at high

ambient temperatures.

The devices can operate in stacked mode to deliver

higher output currents or to spread the power

dissipation across multiple devices.

The TPS6287x-Q1 family implements an enhanced

DCS control scheme that supports fast transients with

fixed-frequency operation. Devices can operate in

power save mode for maximum efficiency, or forced-

PWM mode for the best transient performance and

lowest output voltage ripple.

An optional remote sensing feature maximizes voltage

regulation at the point-of-load, and the device

achieves better than ±1 DC voltage accuracy under

all operating conditions.