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| 型号： | TPS64203DBVTG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 0.15 A SWITCHING CONTROLLER, PDSO6 |
| 封装： | GREEN, PLASTIC, SOT-23, 6 PIN |
| 文件页数： | 1/29页 |
| 文件大小： | 596K |
| 代理商： | TPS64203DBVTG4 |
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TPS64200,TPS64201
TPS64202,TPS64203
SLVS485 AUGUST 2003
SOT23 STEPDOWN CONTROLLER
FEATURES
D Step-Down Controller for Applications With
up to 95% Efficiency
D 1.8-V to 6.5-V Operating Input Voltage Range
D Adjustable Output Voltage Range From 1.2 V
to VI
D High Efficiency Over a Wide Load Current
Range
D 100% Maximum Duty Cycle for Lowest
Dropout
D Internal Softstart
D 20-A Quiescent Current (Typical)
D Overcurrent Protected
D Available in a SOT23 Package
APPLICATIONS
D USB Powered Peripherals
D Organizers, PDAs, and Handheld PCs
D Low Power DSP Supply
D Digital Cameras
D Hard Disk Drives
D Portable Audio Players
DESCRIPTION
The
TPS6420x
are
nonsynchronous
step-down
controllers that are ideally suited for systems powered
from a 5-V or 3.3-V bus or for applications powered from
a 1-cell Li-Ion battery or from a 2- to 4-cell NiCd, NiMH, or
alkaline battery. These step-down controllers drive an
external P-channel MOSFET allowing design flexibility. To
achieve highest efficiency over a wide load current range,
this controller uses a minimum on time, minimum off time
control scheme and consumes only 20-
A quiescent
current. The minimum on time of typically 600 ns
(TPS64203) allows the use of small inductors and
capacitors. When disabled, the current consumption is
reduced to less than 1
A. The TPS6420x is available in
the 6-pin SOT23 (DBV) package and operates over a free
air temperature range of 40
°C to 85°C.
TYPICAL APPLICATION CIRCUIT
5
TPS64200
Si5447DC
ZHCS2000
EN
GND
FB
SW
VIN
ISENSE
Rs = 33 m
10
H
3.3 V / 2 A
47
F
PosCap
6TPA47M
R1
620 k
R2
360 k
10
F
5 V
0
10
20
30
40
50
60
70
80
90
100
0.0001
0.001
0.01
0.1
1
10
TA = 25°C,
VO = 3.3 V
TPS64200
EFFICIENCY
vs
LOAD CURRENT
IO Load Current A
Efficiency
%
VI = 4.2 V
1
2
3
6
4
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, Texas Instruments Incorporated
相关PDF资料 |
PDF描述 |
|---|---|
| TPS64202DBVRG4 | 0.15 A SWITCHING CONTROLLER, PDSO6 |
| TPS64201DBVTG4 | 0.15 A SWITCHING CONTROLLER, PDSO6 |
| TPS65010RGZRG4 | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC48 |
| TPS65010RGZT | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC48 |
| TPS65012RGZT | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC48 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS650001EVM-585 | 功能描述:电源管理IC开发工具 Eval Mod for TPS650001 RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| TPS650001RTER | 功能描述:PMIC 解决方案 2.25MHz Step-Down Converter RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| TPS650001RTET | 功能描述:PMIC 解决方案 2.25MHz Step-Down Converter RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| TPS650003EVM-585 | 功能描述:电源管理IC开发工具 Eval Mod for TPS650003 RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| TPS650003RTER | 功能描述:PMIC 解决方案 2.25MHz Step-Down Converter RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
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