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TPS62290-Q1 PDF预览

TPS62290-Q1

更新时间: 2024-02-10 09:42:11
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
25页 995K
描述
1-A Step Down Converter in 2 x 2 SON Package

TPS62290-Q1 数据手册

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TPS62290-Q1, TPS62291-Q1, TPS62293-Q1  
www.ti.com  
SLVSAI5 SEPTEMBER 2010  
1-A Step Down Converter in 2 x 2 SON Package  
Check for Samples: TPS62290-Q1, TPS62291-Q1, TPS62293-Q1  
1
FEATURES  
DESCRIPTION  
Qualified for Automotive Applications  
High Efficiency Step Down Converter  
Output Current up to 1000 mA  
The TPS6229x-Q1 is a highly efficient synchronous  
step down dc-dc converters optimized for  
battery-powered portable applications. TPS6229x-Q1  
provides up to 1000-mA output current from a single  
Li-Ion cell.  
VIN Range From 2.3 V to 6 V  
2.25 MHz Fixed Frequency Operation  
Power Save Mode at Light Load Currents  
Output Voltage Accuracy in PWM mode ±1.5%  
Fixed Output Voltage Options  
With an input voltage range of 2.3 V to 6 V, the  
device supports batteries with extended voltage  
range and are ideal to power portable applications  
like mobile phones and other portable equipment.  
Typ. 15-mA Quiescent Current  
The TPS6229x-Q1 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.  
100% Duty Cycle for Lowest Dropout  
Voltage Positioning at Light Loads  
Available in a 2 × 2 × 0,8 mm SON Package  
The Power Save Mode is optimized for low output  
voltage ripple. For low noise applications, the device  
can be forced into fixed frequency PWM mode by  
pulling the MODE pin high. In the shutdown mode,  
the current consumption is reduced to less than 1 mA.  
The TPS6229x-Q1 allows the use of small inductors  
and capacitors to achieve a small solution size.  
V
1.8 V,  
L1  
2.2 mH  
OUT  
1000 mA  
TPS62290DRV  
V
V
2.7 V to 6.3 V  
IN  
IN  
SW  
C
R
1
1
22 pF  
C
C
OUT  
IN  
EN  
360 kW  
10 mF  
FB  
GND  
R
2
MODE  
180 kW  
The TPS6229x-Q1 is available in a 2-mm × 2-mm  
6-pin SON package.  
100  
90  
VIN = 4.2 V  
VIN = 3.8 V  
VIN = 5 V  
VIN = 4.5 V  
80  
70  
60  
50  
40  
30  
VOUT = 3.3 V,  
MODE = GND,  
L = 2.2 mH  
0.00001 0.0001 0.001  
0.01  
0.1  
1
IO - Output Current - A  
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.  
UNLESS OTHERWISE NOTED this document contains  
PRODUCTION DATA information current as of publication date.  
Products conform to specifications per the terms of Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2010, Texas Instruments Incorporated  

TPS62290-Q1 替代型号

型号 品牌 替代类型 描述 数据表
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