參數(shù)資料
型號(hào)： TPS64203DBVTG4
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 穩(wěn)壓器
英文描述： 0.15 A SWITCHING CONTROLLER, PDSO6
封裝： GREEN, PLASTIC, SOT-23, 6 PIN
文件頁(yè)數(shù)： 1/29頁(yè)
文件大小： 596K
代理商： TPS64203DBVTG4
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
相關(guān)PDF資料
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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS650001EVM-585 功能描述:電源管理IC開(kāi)發(fā)工具 Eval Mod for TPS650001 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類(lèi)型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
TPS650001RTER 功能描述:PMIC 解決方案 2.25MHz Step-Down Converter RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
TPS650001RTET 功能描述:PMIC 解決方案 2.25MHz Step-Down Converter RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
TPS650003EVM-585 功能描述:電源管理IC開(kāi)發(fā)工具 Eval Mod for TPS650003 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類(lèi)型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
TPS650003RTER 功能描述:PMIC 解決方案 2.25MHz Step-Down Converter RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
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