TPS65055RSMR

更新时间： 2024-10-15 04:48:43

品牌	Logo	应用领域
德州仪器 - TI		转换器
页数	文件大小	规格书
39页	1134K
描述
2.25 MHz Dual Step-Down Converter With 4 Low Input Voltage LDOs

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TPS65055RSMR 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	QFN
包装说明：	HVQCCN,	针数：	32
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	0.88
其他特性：	ALSO OPERATES IN ADJUSTABLE MODE FROM 0.6V TO 6V;ALSO OPERATES AS LDO REGULATOR	模拟集成电路 - 其他类型：	DUAL SWITCHING CONTROLLER
控制模式：	VOLTAGE-MODE	控制技术：	PULSE WIDTH MODULATION
最大输入电压：	6 V	最小输入电压：	2.5 V
标称输入电压：	3.6 V	JESD-30 代码：	S-PQCC-N32
JESD-609代码：	e4	长度：	4 mm
湿度敏感等级：	2	功能数量：	1
端子数量：	32	最高工作温度：	85 °C
最低工作温度：	-40 °C	最大输出电流：	1.8 A
最大输出电压：	3 V	最小输出电压：	0.8 V
封装主体材料：	PLASTIC/EPOXY	封装代码：	HVQCCN
封装形状：	SQUARE	封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：	260	认证状态：	Not Qualified
座面最大高度：	1 mm	表面贴装：	YES
切换器配置：	BUCK	最大切换频率：	2250 kHz
温度等级：	INDUSTRIAL	端子面层：	Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：	NO LEAD	端子节距：	0.4 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	4 mm	Base Number Matches：	1

TPS65055RSMR 数据手册

TPS65055

www.ti.com.......................................................................................................................................................................................... SLVS844–SEPTEMBER 2008

2.25 MHz Dual Step-Down Converter With 4 Low Input Voltage LDOs

FEATURES

DESCRIPTION

•

Up to 95% Efficiency

Output Current for DCDC Converters 2 × 0.6A

The TPS65055 is an integrated Power Management

IC for applications powered by one Li-Ion or

Li-Polymer cell, which require multiple power rails.

Two Selectable Fixed Output Voltages 1.0

V/1.2 V for DCDC2

The TPS65055 provides two highly efficient,

2.25 MHz 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.

•

V_INRange for DCDC 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%

Low Ripple PFM Mode

For low noise applications the device can be forced

into fixed frequency PWM mode using the I²C

compatible interface. In shutdown mode, current

consumption is reduced to less than 1 µA.

Total Typ. 32 µA Quiescent Current for Both

DCDC Converters

The device allows the use of small inductors and

capacitors to achieve a small solution size.

•

100% Duty Cycle for Lowest Dropout

2 General Purpose 400 mA- High PSRR LDOs

2 General Purpose 200 mA- High PSRR LDOs

V_INRange for LDOs from 1.5 V to 6.5 V

Digital Voltage Selection for the LDOs

I²C Compatible Interface

The TPS65055 provides an output current of up to

0.6 A on each dcdc converter.

The TPS65055 also integrates two 400 mA LDO and

two 200 mA 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 1.5 V and 6.5 V allowing them to be

supplied from one of the step-down converters or

directly from the main battery. Two digital input pins

are used to set the output voltage of the LDOs from a

set of 9 different combinations for LDO1 to LDO4.

Additionally, the converters can be controlled by an

I²C compatible interface.

Available in a 4 mm × 4 mm 32-Pin QFN

Package

APPLICATIONS

•

Cell Phones, Smart-phones

WLAN

PDAs, Pocket PCs

OMAP™ and Low Power DSP Supply

XScale

Portable Media Players

Digital Cameras

The TPS65055 is available in a small 32-pin leadless

package (4 mm × 4 mm QFN) with a 0,4 mm pitch.

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...39

中文翻译

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TPS65055RSMR 替代型号

型号	品牌	替代类型	描述	数据表
TPS65055RSMT	TI	完全替代	2.25 MHz Dual Step-Down Converter With 4 Low Input Voltage LDOs

与TPS65055RSMR相关器件

型号	品牌	获取价格	描述	数据表
TPS65055RSMT	TI	获取价格	2.25 MHz Dual Step-Down Converter With 4 Low Input Voltage LDOs
TPS65055RSMTG4	TI	获取价格	2.25MHz dual step-down converter with 4 low input voltage LDOs 32-VQFN -40 to 85
TPS65056	TI	获取价格	6-CHANNEL POWER MGMT IC WITH TWO STEP-DOWN CONVERTERS AND 4 LOW-INPUT VOLTAGE LDOs
TPS65056QRSMTQ1	TI	获取价格	IC POWER SUPPLY SUPPORT CKT, Power Management Circuit
TPS65056RSMR	TI	获取价格	6-CHANNEL POWER MGMT IC WITH TWO STEP-DOWN CONVERTERS AND 4 LOW-INPUT VOLTAGE LDOs
TPS65056RSMRG4	TI	获取价格	6-CHANNEL POWER MGMT IC WITH TWO STEP-DOWN CONVERTERS AND 4 LOW-INPUT VOLTAGE LDOs
TPS65056RSMT	TI	获取价格	6-CHANNEL POWER MGMT IC WITH TWO STEP-DOWN CONVERTERS AND 4 LOW-INPUT VOLTAGE LDOs
TPS65056RSMTG4	TI	获取价格	6-CHANNEL POWER MGMT IC WITH TWO STEP-DOWN CONVERTERS AND 4 LOW-INPUT VOLTAGE LDOs
TPS65058	TI	获取价格	2.25 MHz Dual STEP DOWN CONVERTER WITH 3 LOW-INPUT VOLTAGE LDOs
TPS65058_1	TI	获取价格	2.25 MHz Dual STEP DOWN CONVERTER WITH 3 LOW-INPUT VOLTAGE LDOs

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