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參數(shù)資料
| 型號(hào)： | TPS60140PWPRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.1 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封裝： | GREEN, PLASTIC, HTSSOP-20 |
| 文件頁數(shù)： | 1/23頁 |
| 文件大小： | 862K |
| 代理商： | TPS60140PWPRG4 |
TPS60140, TPS60141
LOW POWER DCDC CONVERTER
REGULATED 5 V, 100mA CHARGE PUMP VOLTAGE TRIPLER
SLVS273 FEBRUARY 2000
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
features
D Regulated 5 V ± 4% Output Voltage With up
to 100 mA Output Current From a 1.8 V to
3.6 V Input Voltage Range
D 65-A Quiescent Supply Current
D 0.05-A Shutdown Current, Battery Is
Isolated From Load in Shutdown
D Integrated Low-Battery or Power-Good
Indicator
D Low Output Voltage Ripple Over Complete
Output Current Range
D Easy-To-Design With Low-EMI Power
Supply Since no Inductors Are Required
D Evaluation Module Available
(TPS60140EVM-144)
applications
D Replaces DC/DC Converters With Inductors
in Battery-Powered Applications:
Two Battery Cells to 5 V Conversion
Portable Instruments
Miniature Equipment
Backup-Battery Boost Converters
Medical Instruments
5-V Smart Card Supply
Organizers, PDAs
description
The TPS6014x step-up, regulated charge pumps
generate a 5-V
±4% output voltage from a 1.8 V
to 3.6 V input voltage range. The devices are
typically powered by two alkaline, NiCd, or NiMH
battery cells and provide an output current of
minimum 100 mA from a 2-V input. Only four
external capacitors are needed to build a
complete voltage tripler charge pump.
The devices regulate the output by using the
pulse-skip topology. The controller is optimized for
lowest output voltage ripple over the complete output current range. The output peak current and therefore the
output voltage ripple are drastically reduced compared to a conventional pulse-skip topology by regulating the
charge pump output resistance. At light loads the maximum output resistance is limited to assure a low
quiescent current.
The TPS60140 includes a low-battery comparator that issues a warning if the battery voltage drops below a
user-adjustable threshold voltage. The TPS60141 features a power-good output that goes active when the
output voltage reaches 90% of its nominal value.
The logic shutdown function disables the converter, reduces the supply current to a maximum of 1
A and
disconnects the output from the input. Special current-control circuitry prevents excessive current from being
drawn from the battery during start-up. This dc-dc converter requires no inductors, therefore, EMI is of little
concern. It is available in the small, thermally enhanced 20-pin TSSOP package (PWP).
typical operating circuit
IN
OUT
TPS60140
IN
FB
LBI
LBO
Low
Battery
Warning
Output
5 V, 100 mA
Co
10
F
R3
R1
R2
C2+
C2
2.2
F
C1+
C1
2.2
F
NC
ENABLE
PGND
GND
OFF/ON
Ci
4.7
F
Input
1.8 V to 3.6 V
Copyright
2000, Texas Instruments 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.
PowerPAD is a trademark of Texas Instruments Incorporated.
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.
相關(guān)PDF資料 |
PDF描述 |
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| TPS60140PWPG4 | SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20 |
| TPS60141PWPG4 | SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20 |
| TPS60140PWP | 0.1 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20 |
| TPS60150DRVT | 1.4 A SWITCHED CAPACITOR REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO6 |
| TPS60150DRVR | 1.4 A SWITCHED CAPACITOR REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO6 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS60141 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW POWER DC-DC CONVERTER REGULATED 5 V, 100-mA CHARGE PUMP VOLTAGE TRIPLER |
| TPS60141PWP | 功能描述:電荷泵 Reg 5-V Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| TPS60141PWPG4 | 功能描述:電荷泵 Reg 5-V Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| TPS60141PWPR | 功能描述:電荷泵 Reg 5-V Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| TPS60141PWPRG4 | 功能描述:電荷泵 Reg 5-V Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
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