Datasheet > 65053

65053

更新时间： 2024-11-21 03:05:19

品牌	Logo	应用领域
德州仪器 - TI		转换器输入元件
页数	文件大小	规格书
29页	900K
描述
5-CHANNEL POWER MGMT IC WITH TWO STEP DOWN CONVERTERS AND 3 LOW-INPUT VOLTAGE LDOs

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65053 数据手册

TPS65053

www.ti.com

SLVS754–MARCH 2007

5-CHANNEL POWER MGMT IC WITH TWO STEP DOWN CONVERTERS

AND 3 LOW-INPUT VOLTAGE LDOs

FEATURES

DESCRIPTION

•

Up To 95% Efficiency

The TPS65053 is an integrated Power Management

IC for applications powered by one Li-Ion or

Li-Polymer cell, which require multiple power rails.

The TPS65053 provides two highly efficient,

2.25MHz step-down converters targeted at providing

the core voltage and I/O voltage in a processor

based system. Both step-down converters enter a

low power mode at light load for maximum efficiency

across the widest possible range of load currents.

For low noise applications the devices can be forced

into fixed frequency PWM mode by pulling the

MODE pin high. Both converters allow the use of

small inductors and capacitors to achieve a small

solution size. TPS65053 provides an output current

of up to 1A on the DCDC1 converter and up to 0.6A

on the DCDC2 converter. The TPS65053 also

integrates one 400mA LDO and two 200mA LDO

voltage regulators, which can be turned on/off using

separate enable pins on each LDO. Each LDO

operates with an input voltage range between 1.5V

and 6.5V allowing them to be supplied from one of

the step-down converters or directly from the main

battery. LDO1 and LDO2 are externally adjustable

while LDO3 has a fixed output voltage of 1.3V.

•

Output Current for DC/DC Converters:

–

DCDC1 = 1 A; DCDC2 = 0.6 A

•

DC/DC Converters Externally Adjustable

V_INRange for DC/DC Converters From 2.5 V to

6 V

•

2.25-MHz Fixed Frequency Operation

Power Save Mode at Light Load Current

180° Out-of-Phase Operation

Output Voltage Accuracy in PWM mode ±1%

Total Typical 32-µA Quiescent Current for

Both DC/DC Converters

•

100% Duty Cycle for Lowest Dropout

One General-Purpose 400-mA LDO

Two General-Purpose 200-mA LDOs

V_INRange for LDOs from 1.5 V to 6.5 V

Available in a 4 mm x 4 mm 24-Pin QFN

Package

APPLICATIONS

The TPS65053 comes in a small 24-pin leadless

package (4mm × 4mm QFN) with a 0.5mm pitch.

•

Cell Phones, Smart-Phones

WLAN

PDAs, Pocket PCs, GPS

OMAP™ and Low-Power DSP Supply

Portable Media Players

Digital Cameras

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.

OMAP, PowerPAD are trademarks of Texas Instruments.

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...29

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与65053相关器件

型号	品牌	获取价格	描述	数据表
65054	TI	获取价格	6-CHANNEL POWER MGMT IC WITH TWO STEP-DOWN CONVERTERS AND 4 LOW-INPUT VOLTAGE LDOs
65056	TI	获取价格	6-CHANNEL POWER MGMT IC WITH TWO STEP-DOWN CONVERTERS AND 4 LOW-INPUT VOLTAGE LDOs
65057-002	AMPHENOL	获取价格	Board Connector, 60 Contact(s), 2 Row(s), Male, 0.15 inch Pitch, Black Insulator, Receptac
65057-004	AMPHENOL	获取价格	Board Connector, 56 Contact(s), 2 Row(s), Male, 0.15 inch Pitch, Black Insulator, Receptac
65057-007	AMPHENOL	获取价格	Board Connector, 50 Contact(s), 2 Row(s), Male, 0.15 inch Pitch, Crimp Terminal, Black Ins
65057-014	AMPHENOL	获取价格	Board Connector, 36 Contact(s), 2 Row(s), Male, 0.15 inch Pitch, Black Insulator, Receptac
65057-029	AMPHENOL	获取价格	Board Connector, 6 Contact(s), 2 Row(s), Male, 0.15 inch Pitch, Black Insulator, Receptacl
65059-001	AMPHENOL	获取价格	Board Connector, 5 Contact(s), 1 Row(s), Female, Right Angle, 0.15 inch Pitch, Solder Term
65059-002	AMPHENOL	获取价格	Board Connector, 6 Contact(s), 1 Row(s), Female, Right Angle, 0.15 inch Pitch, Solder Term
65059-003LF	AMPHENOL	获取价格	Board Connector, 7 Contact(s), 1 Row(s), Female, Right Angle, 0.15 inch Pitch, Solder Term

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