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参数资料
| 型号： | TPS62044DRCR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 2.2 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封装： | 3 X 3 MM, GREEN, PLASTIC, SON-10 |
| 文件页数： | 1/30页 |
| 文件大小： | 790K |
| 代理商： | TPS62044DRCR |
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TPS62040
TPS62042, TPS62043
TPS62044, TPS62046
SLVS463B JUNE 2003 REVISED OCTOBER 2005
1.2 A/1.25 MHz, HIGH-EFFICIENCY STEP-DOWN CONVERTER
FEATURES
D Up to 95% Conversion Efficiency
D Typical Quiescent Current: 18 A
D Load Current: 1.2 A
D Operating Input Voltage Range: 2.5 V to 6.0 V
D Switching Frequency: 1.25 MHz
D Adjustable and Fixed Output Voltage
D Power Save Mode Operation at Light load
Currents
D 100% Duty Cycle for Lowest Dropout
D Internal Softstart
D Dynamic Output Voltage Positioning
D Thermal Shutdown
D Short-Circuit Protection
D 10 Pin MSOP PowerPad Package
D 10 Pin QFN 3 X 3 mm Package
APPLICATIONS
D PDA, Pocket PC and Smart Phones
D USB Powered Modems
D CPUs and DSPs
D PC Cards and Notebooks
D xDSL Applications
D Standard 5-V to 3.3-V Conversion
DESCRIPTION
The TPS6204x family of devices are high efficiency
synchronous step-down dc-dc converters optimized for
battery powered portable applications. The devices are
ideal for portable applications powered by a single Li-Ion
battery cell or by 3-cell NiMH/NiCd batteries. With an
output voltage range from 6.0 V down to 0.7 V, the devices
support low voltage DSPs and processors in PDAs,
pocket PCs, as well as notebooks and subnotebook
computers. The TPS6204x operates at a fixed switching
frequency of 1.25 MHz and enters the power save mode
operation at light load currents to maintain high efficiency
over the entire load current range. For low noise
applications, the devices can be forced into fixed
frequency PWM mode by pulling the MODE pin high. The
TPS6204x supports up to 1.2-A load current.
7
VIN
EN
MODE
SW
FB
PGND
SW
GND
2
3
1
4
9
10
5
8
6
TPS6204x
VI
2.5 V to 6 V
VO
0.7 V to VI /1.2 A
C2
22 F
C1
22 F
L1
6.2 H
Typical Application Circuit 1.2-A Output Current
40
45
50
55
60
65
70
75
80
85
90
95
100
0
0.01
0.1
1
10
100
1 k
10 k
VI = 2.7 V
VI = 3.6 V
VI = 5 V
MODE = Low
VI = 3.6 V
MODE = High
Efficiency
%
EFFICIENCY
vs
LOAD CURRENT
IL Load Current mA
VO = 1.8 V
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 include testing of all parameters.
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.
www.ti.com
Copyright 2003 2005, Texas Instruments Incorporated
PowerPAD is a trademark of Texas Instruments.
相关PDF资料 |
PDF描述 |
|---|---|
| TPS62042DGQ | 2.2 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS62046DGQRG4 | 2.2 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS62042DGQR | 2.2 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS62043DGQ | 2.2 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS62044DGQRG4 | 2.2 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO10 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS62044DRCRG4 | 功能描述:直流/直流开关调节器 1.8V Out 1.2A Hi-Ef Step-Down Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS62046DGQ | 功能描述:直流/直流开关调节器 3.3V Out/1.2A Hi-Eff Step-Down Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS62046DGQG4 | 功能描述:直流/直流开关调节器 3.3V Out/1.2A Hi-Eff Step-Down Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS62046DGQR | 功能描述:直流/直流开关调节器 3.3V Out/1.2A Hi-Eff Step-Down Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS62046DGQR | 制造商:Texas Instruments 功能描述:DC/DC CONVERTER IC 制造商:Texas Instruments 功能描述:IC, STEP-DOWN CONVERTER, MSOP-10 |
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