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TPS62273DRV

更新时间： 2024-11-23 04:48:47
品牌 Logo 应用领域
德州仪器 - TI 转换器稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
23页 984K
描述
2.25 MHz 400-mA Step Down Converter With Selectable VOUT

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TPS62273DRV 技术参数

生命周期：Obsolete零件包装代码：SON
包装说明：HVSON,针数：6
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.23
其他特性：ALSO OPERATES AT 3.3V; PFM CONTROL TECHNIQUE ALSO AVAILABLE模拟集成电路 - 其他类型：SWITCHING REGULATOR
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 V
标称输入电压：3.6 VJESD-30 代码：S-PDSO-N6
长度：2 mm功能数量：1
端子数量：6最高工作温度：85 °C
最低工作温度：-40 °C最大输出电流：0.84 A
标称输出电压：2.5 V封装主体材料：PLASTIC/EPOXY
封装代码：HVSON封装形状：SQUARE
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE认证状态：Not Qualified
座面最大高度：0.8 mm表面贴装：YES
切换器配置：BUCK最大切换频率：2500 kHz
温度等级：INDUSTRIAL端子形式：NO LEAD
端子节距：0.65 mm端子位置：DUAL
宽度：2 mmBase Number Matches：1

TPS62273DRV 数据手册

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TPS62270  
TPS62273  
www.ti.com................................................................................................................................................... SLVS799B–NOVEMBER 2007–REVISED JUNE 2008  
2.25 MHz 400-mA Step Down Converter With Selectable VOUT  
1
FEATURES  
DESCRIPTION  
•
•
•
High Efficiency Step Down Converter  
Output Current up to 400 mA  
The TPS62270 device is  
a
high efficiency  
synchronous step down DC-DC converter optimized  
for battery powered portable applications. It provides  
up to 400 mA output current from a single Li-Ion cell.  
VIN Range From 2V to 6V for Li-Ion Batteries  
With Extended Voltage Range  
•
•
•
•
2.25 MHz Fixed Frequency Operation  
Pin-Selectable Fixed Output Voltage  
Power Save Mode for Highest Efficiency  
With an input voltage range of 2.0 V to 6 V the device  
supports Li-Ion batteries with extended voltage range,  
and is ideal to power portable applications like mobile  
phones and other portable equipment.  
Automatic transition between PFM and PWM  
Mode  
The TPS62270 operates at 2.25 MHz fixed switching  
frequency and enters Power Save Mode operation at  
light load currents to maintain high efficiency over the  
entire load current range. The Power Save Mode is  
optimized for low output voltage ripple.  
•
•
•
•
•
Voltage Positioning in PFM Mode  
Typical 15-µA Quiescent Current  
100% Duty Cycle for Lowest Dropout  
Available in 2×2×0,8 mm SON Package  
Allows <1 mm Solution Height  
With the VSEL pin, two different fixed output voltages  
can be selected. This function features a dynamic  
voltage scaling for low power processor cores.  
APPLICATIONS  
In the shutdown mode, the current consumption is  
reduced to less than 1µA. TPS62270 allows the use  
of small inductors and capacitors to achieve a small  
solution size.  
•
•
•
•
•
•
Low Power Processor Supply  
Cell Phones, Smart-phones  
Navigation Systems  
Low Power DSP Supply  
Portable Media Players  
Digital Cameras  
The TPS62270 is available in a 2 mm × 2 mm, 6-pin  
SON package.  
VOUT  
TPS62270DRV  
VIN = 2 V to 6 V  
COUT  
L
2.2 mH  
VOUT  
0.9 V / 1.15 V  
up to 400 mA  
VIN  
SW  
VIN  
CIN  
CIN  
EN  
COUT  
4.7 mF  
L1  
10 mF  
FB  
U1  
GND  
1.15 V  
VSEL  
0.9 V  
Total area  
21.5 mm²  
GND  
6.5 mm  
1
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.  
Copyright © 2007–2008, Texas Instruments Incorporated  
1234567...23

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