Datasheet > TPS2505

TPS2505

更新时间： 2024-09-19 05:52:23

品牌	Logo	应用领域
德州仪器 - TI		转换器开关升压转换器
页数	文件大小	规格书
28页	833K
描述
INTEGRATED DUAL USB SWITCHES, BOOST CONVERTER AND LDO

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TPS2505 数据手册

TPS2505

www.ti.com

SPAS093A –DECEMBER 2009–REVISED FEBRUARY 2010

INTEGRATED DUAL USB SWITCHES, BOOST CONVERTER AND LDO

Check for Samples: TPS2505

FEATURES

Typical Application

•

Integrated Synchronous Boost Converter, LDO

and Dual USB Current-Limited Switches

2.2µH

1.8-V to 5.25-V Input Voltage

(2.2-V Minimum Start-Up Voltage)

Power

Supply

1.8V – 5.25V

RESET

3.3V Power

10µF

LDOOUT

Adjustable Independent USB Current Limit

1µF

EN_LDO

LDOIN

–

100 mA to 1100 mA

5V USB Power

120µF

HUB

CONTROLLER

USB1

•

Auxiliary 5.1-V Output

5V Output

R_FAULT1

AUX

22µF

3.3-V Linear Regulator Output

Inrush Current < 100 mA

TPS2505

R_FAULT2

5V USB Power

120µF

USB2

ILIM1

ILIM2

FAULT1

FAULT2

ENUSB1

ENUSB2

Minimal External Components Required

Deglitched Independent Fault Reporting

Small 5-mm x 5-mm QFN-20 Package

Industrial Temperature Range

R_LIM1

R_LIM2

GND

PAD

PGND

APPLICATIONS

•

Portable Applications Using Single Li+ Cell

Bus Powered USB Hosts

USB Hosts Without Native 5-V Supplies

Computer Peripherals

DESCRIPTION

The TPS2505 provides an integrated solution to meet USB 5-V power requirements from a 1.8-V to 5.25-V input

supply. The features include a 5.1-V, 1100-mA boost converter, a 200-mA, 3.3-V LDO linear regulator and dual

USB 2.0 compliant power outputs with independent output switch enable, current limit, and over-current fault

reporting.

The 1.8-V to 5.25-V input can be supplied by sources including DC/DC regulated supplies (e.g. 3.3 V), or

batteries such as single cell Li+, two-cell or three-cell NiCd, NiMH or alkaline.

The output trip current for the dual USB switches can be programmed via external resistors from as low as

100 mA to as high as 1100 mA.

An auxiliary 5.1-V output is provided, where the total current supplied by the USB outputs and the auxiliary by

cannot exceed 1100 mA.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...28

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与TPS2505相关器件

型号	品牌	获取价格	描述	数据表
TPS2505_15	TI	获取价格	Integrated Dual USB Switches, Boost Converter and LDO
TPS2505B1RGWR	TI	获取价格	INTEGRATED DUAL USB SWITCHES, BOOST CONVERTER AND LDO
TPS2505BRGWR	TI	获取价格	Integrated Dual USB Power Switch with Boost Converter and LDO 20-VQFN -40 to 85
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TPS2511DGN	TI	获取价格	USB Dedicated Charging Port Controller and Current Limiting Power Switch
TPS2511DGNR	TI	获取价格	USB Dedicated Charging Port Controller and Current Limiting Power Switch
TPS2511-Q1	TI	获取价格	USB Dedicated Charging Port Controller and Current Limiting Power Switch
TPS2511QDGNQ1	TI	获取价格	USB Dedicated Charging Port Controller and Current Limiting Power Switch
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