Datasheet > TPS62405-Q1

TPS62405-Q1

更新时间： 2024-11-16 11:12:27

品牌	Logo	应用领域
德州仪器 - TI		转换器
页数	文件大小	规格书
44页	1592K
描述
具有单总线接口的汽车类、双通道固、定输出电压、400mA 和 600mA、2.25MHz 降压转换器

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TPS62400-Q1, TPS62402-Q1, TPS62404-Q1, TPS62405-Q1

SLVSA67F –FEBRUARY 2010–REVISED APRIL 2020

TPS6240x-Q1 2.25-MHz 400-mA and 600-mA Dual Step-Down Converter

1 Features

3 Description

The TPS6240x-Q1 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.

•

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

The EasyScale™ serial interface allows output-

voltages modification during operation. The fixed-

output-voltage versions, TPS62402-Q1,

TPS62404-Q1, and TPS62405-Q1 support one-pin-

controlled simple dynamic voltage scaling for low-

power processors.

•

High efficiency—up to 95%

V_INRange 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 V_IN

The TPS6240x-Q1 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.

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

(1)

Device Information

•

100% Duty cycle for lowest dropout

PART NUMBER

TPS62400-Q1

TPS62402-Q1

TPS62404-Q1

TPS62405-Q1

PACKAGE

BODY SIZE (NOM)

2 Applications

•

Infotainment and cluster

ADAS

VSON (10)

3.00 mm × 3.00 mm

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

Simplified Schematic

TPS62402-Q1

TPS62402-Q1 Efficiency versus Output Current,

V_OUT1and V_OUT2

100

V_IN2.5 V to 6 V

FB1

VIN

V_IN= 3.7 V

2.2 µH

V_OUT1= 1.2 V

400 mA

V_IN= 4.2 V

SW1

10 µF

V_OUT2= 3.3 V

MODE/DATA = Low

10 µF

DEF_1

EN1

EN2

V_IN= 3.7 V

V_IN= 4.2 V

2.2 µH

V_OUT1= 1.2 V

V_OUT2= 3.3 V

600 mA

MODE/DATA = Low

SW2

V_IN= 3.7 V

V_IN= 4.2 V

V_OUT2= 1.2 V

V_IN= 3.7 V

MODE/

DATA

MODE/DATA = High

V_IN= 4.2 V

10 µF

_OUT2= 3.3 V

ADJ2

GND

MODE/DATA = High

0.01

0.1

100

1000

Output Current (mA)

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION

DATA.

12 3 4 5 6 7...44

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与TPS62405-Q1相关器件

型号	品牌	获取价格	描述	数据表
TPS62405QDRCRQ1	TI	获取价格	具有单总线接口的汽车类、双通道固、定输出电压、400mA 和 600mA、2.25MHz
TPS62406-Q1	TI	获取价格	用于 ADAS 摄像头应用的汽车类 2.25MHz 固定输出电压双路 1000mA/400
TPS62406QDRCRQ1	TI	获取价格	用于 ADAS 摄像头应用的汽车类 2.25MHz 固定输出电压双路 1000mA/400
TPS62407-Q1	TI	获取价格	用于 ADAS 摄像头应用的汽车类 2.25MHz 固定输出电压双路 400mA/600m
TPS62407QDRCRQ1	TI	获取价格	用于 ADAS 摄像头应用的汽车类 2.25MHz 固定输出电压双路 400mA/600m
TPS62410	TI	获取价格	2.25MHz 2x800mA Dual Step Down Converter In Small 3x3mm QFN Package
TPS62410DRC	TI	获取价格	2.25MHz 2x800mA Dual Step Down Converter In Small 3x3mm QFN Package
TPS62410DRCR	TI	获取价格	2.25MHz 2x800mA Dual Step Down Converter In Small 3x3mm QFN Package
TPS62410DRCRG4	TI	获取价格	具有 1 线接口、采用 QFN 封装的 2.25MHZ 2x800mA 双路降压转换器 \|
TPS62410DRCT	TI	获取价格	2.25MHz 2x800mA Dual Step Down Converter In Small 3x3mm QFN Package

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