TPS657051

更新时间： 2024-11-15 05:54:31

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
22页	2880K
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PMU for Embedded Camera Module

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TPS657051 数据手册

TPS657052

TPS657051

www.ti.com

SLVSA08 –FEBRUARY 2010

PMU for Embedded Camera Module

Check for Samples: TPS657052, TPS657051

FEATURES

•

Two 400mA Step-Down Converters

DESCRIPTION

Up to 92% Efficiency

TPS657051/52 are small power management units

targeted for embedded camera module or other

portable low power consumer end equipments. It

contains two high efficient step down converters, a

low dropout linear regulator and additional supporting

functions. The 2.25MHz step-down converter enters 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 using the MODE pin. The

device allows the use of small inductors and

V_INRange for DCDC Converter From 3.3V to 6V

2.25 MHz Fixed Frequency Operation

Power Save Mode at Light Load Current

Output Voltage Accuracy in PWM Mode ±1.5%

100% Duty Cycle for Lowest Dropout

180° Out of Phase Operation

1 General Purpose 200mA LDO

V_INRange for LDO From 1.7V to 6.0V

Available in a 16 Ball WCSP With 0.5mm Pitch

capacitors to achieve

small sized solution.

TPS657051/52 provides an output current of up to

400mA on both DCDC converters and integrates one

200mA LDO with different output settings. The LDO

operates with an input voltage range between 1.7V

and 6.0V allowing it to be supplied from the output of

the step-down converter or directly from the system

voltage.

APPLICATIONS

•

Digital Cameras

Portable Media Players

Handheld Equipment

VCC

TPS657051/52

The TPS657051/52 comes in a small 16-ball wafer

chip scale package (WCSP) with 0.5mm ball pitch.

2.2 μH

VIN1

Vout1

Vout2

Vout3

DCDC1

400 mA

MODE

EN1

10 mF

FB1

10uF

PGND

CLK0°

2.25 MHz

Oscillator

CLK180°

2.2 μH

FB2

VIN2

EN2

DCDC2

400 mA

10 mF

PGND

VLDO

VINLDO

ENLDO

2.2 mF

LDO

200 mA

AGND

Figure 1. Application Circuit

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...22

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与TPS657051相关器件

型号	品牌	获取价格	描述	数据表
TPS657051_15	TI	获取价格	PMU for Embedded Camera Module
TPS657051YZHR	TI	获取价格	PMU for Embedded Camera Module
TPS657051YZHT	TI	获取价格	PMU for Embedded Camera Module
TPS657052	TI	获取价格	PMU for Embedded Camera Module
TPS657052_1	TI	获取价格	PMU for Embedded Camera Module
TPS657052YZHR	TI	获取价格	PMU for Embedded Camera Module
TPS657052YZHT	TI	获取价格	PMU for Embedded Camera Module
TPS65708	TI	获取价格	PMU for Embedded Camera Module
TPS65708_15	TI	获取价格	PMU for Embedded Camera Module
TPS65708YZHR	TI	获取价格	PMU for Embedded Camera Module

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