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TPS62052DGS PDF预览

TPS62052DGS

更新时间: 2024-02-13 21:04:28
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
21页 425K
描述
800-mA SYNCHRONOUS STEP-DOWN CONVERTER

TPS62052DGS 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:MSOP
包装说明:TSSOP,针数:10
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:1 week
风险等级:1其他特性:ALSO HAS CONTROL TECHNIQUE OF PFM
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:10 V
最小输入电压:2.7 V标称输入电压:7.2 V
JESD-30 代码:S-PDSO-G10JESD-609代码:e4
长度:3 mm湿度敏感等级:1
功能数量:1端子数量:10
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:1.4 A最大输出电压:1.5 V
最小输出电压:1.5 V标称输出电压:1.5 V
封装主体材料:PLASTIC/EPOXY封装代码:TSSOP
封装形状:SQUARE封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.1 mm表面贴装:YES
切换器配置:BUCK最大切换频率:1000 kHz
温度等级:INDUSTRIAL端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:GULL WING端子节距:0.5 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:3 mm

TPS62052DGS 数据手册

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TPS62050, TPS62051  
TPS62052, TPS62054, TPS62056  
www.ti.com  
SLVS432DSEPTEMBER 2002REVISED OCTOBER 2003  
800-mA SYNCHRONOUS STEP-DOWN CONVERTER  
FEATURES  
DESCRIPTION  
High-Efficiency Synchronous Step-Down  
Converter With up to 95% Efficiency  
12-µA Quiescent Current (Typ)  
2.7-V to 10-V Operating Input Voltage Range  
Adjustable Output Voltage Range From 0.7 V  
to 6 V  
Fixed Output Voltage Options Available in  
1.5 V, 1.8 V, and 3.3 V  
Synchronizable to External Clock Signal up to  
1.2 MHz  
High Efficiency Over a Wide Load Current  
Range in Power-Save Mode  
100% Maximum Duty Cycle for Lowest  
Dropout  
Low Noise Operation in Forced Fixed  
Frequency PWM Operation Mode  
Internal Softstart  
Overtemperature and Overcurrent Protected  
Available in 10-Pin Microsmall Outline  
Package MSOP  
The TPS6205x devices are a family of high-efficiency  
synchronous step-down dc/dc converters ideally suited  
for systems powered from a 1-cell or 2-cell Li-Ion  
battery or from a 3-cell to 5-cell NiCd, NiMH, or alkaline  
battery.  
The TPS62050 is a synchronous PWM converter with  
integrated N-channel and P-channel power MOSFET  
switches. Synchronous rectification increases ef-  
ficiency and reduces external component count. To  
achieve highest efficiency over a wide load current  
range, the converter enters  
a
power-saving  
pulse-frequency modulation (PFM) mode at light load  
currents. Operating frequency is typically 850 kHz,  
allowing the use of small inductor and capacitor values.  
The device can be synchronized to an external clock  
signal in the range of 600 kHz to 1.2 MHz. For low noise  
operation, the converter can be programmed into  
forced-fixed frequency in PWM mode. In shutdown  
mode, the current consumption is reduced to less than  
2 µA. The TPS6205x is available in the 10-pin (DGS)  
micro-small outline package (MSOP) and operates  
over an free air temperature range of -40°C to 85°C.  
APPLICATIONS  
Cellular Phones  
Organizers, PDAs, and Handheld PCs  
Low Power DSP Supply  
Digital Cameras and Hard Disks  
TPS62050  
EFFICIENCY  
vs  
TYPICAL APPLICATION CIRCUIT  
V = 3.3 V to 10 V  
L1 = 10 µH  
I
V = 1.5 V / 800 mA  
O
1
8
9
5
OUTPUT CURRENT  
SW  
FB  
VIN  
EN  
100  
90  
80  
TPS62052  
70  
60  
C = 10 µF  
i
6
7
4
2
PG  
LBI  
C
o
= 22 µF  
50  
40  
SYNC  
GND  
LBO  
30  
20  
10  
0
PGND  
10  
V = 7.2 V,  
I
3
V
= 5 V,  
O
SYNC = L  
0.01  
0.1  
1
10  
100  
1 k  
I
– Output Current – mA  
O
MATHCAD is a trademark of Mathsoft Incorporated.  
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 Texas Instruments  
standard warranty. Production processing does not necessarily in-  
cludetestingofallparameters.  
Copyright © 20022003, Texas Instruments Incorporated  

TPS62052DGS 替代型号

型号 品牌 替代类型 描述 数据表
TPS62052DGSR TI

完全替代

800-mA SYNCHRONOUS STEP-DOWN CONVERTER
TPS62052DGSRG4 TI

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800-mA SYNCHRONOUS STEP-DOWN CONVERTER
TPS62052DGSG4 TI

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800-mA SYNCHRONOUS STEP-DOWN CONVERTER

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