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參數資料
| 型號： | TPS60121PWPR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | 0.2 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封裝： | GREEN, PLASTIC, HTSSOP-20 |
| 文件頁數： | 1/30頁 |
| 文件大?。?/td> | 878K |
| 代理商： | TPS60121PWPR |
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TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125
REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP
DC/DC CONVERTERS
SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
features
D High Average Efficiency Over Input Voltage
Range Because of Special Switching
Topology
D Minimum 200-mA Output Current From an
Input Voltage Range of 1.8-V to 3.6-V
D Regulated 3.3-V or 3-V ±4% Output Voltage
D No Inductors Required, Low EMI
D Only Four External Components Required
D 55-A Quiescent Supply Current
D 0.05-A Shutdown Current
D Load Disconnected in Shutdown
D Integrated Low Battery and Power Good
Detectors
D Evaluation Module Available
(TPS60120EVM-142)
applications
D Applications Powered by Two Battery Cells
D Portable Instruments
D Battery-Powered Microprocessor Systems
D Miniature Equipment
D Backup-Battery Boost Converters
D PDAs, Organizers, Laptops
D MP-3 Portable Audio Players
D Handheld Instrumentation
D Medical Instruments (e.g., Glucose Meters)
D Cordless Phones
description
The TPS6012x step-up, regulated charge pumps
generate a 3.3-V or 3-V
±4% output voltage from
a 1.8-V to 3.6-V input voltage (two alkaline, NiCd,
or NiMH batteries). They can deliver an output
current of at least 200 mA (100 mA for the
TPS60122 and TPS60123), all from a 2-V input.
Four external capacitors are needed to build a
complete high efficiency dc/dc charge pump
converter. To achieve the high efficiency over a
wide input voltage range, the charge pump
automatically selects between a 1.5x or doubler
conversion mode. From a 2-V input, all ICs can
start with full load current.
The devices feature the power-saving pulse-skip
mode to extend battery life at light loads.
TPS60120, TPS60122, and TPS60124 include a
low battery comparator. TPS60121, TPS60123,
and TPS60125 feature a power-good output. The
logic shutdown function reduces the supply
current to a maximum of 1
A and disconnects the
load 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 low concern. It is available in the small,
thermally enhanced 20-pin PowerPAD
t package
(PWP).
IO = 66 mA
0
10
20
30
40
50
60
70
80
90
100
1.8
2
2.2
2.4 2.6
2.8
3
3.2
3.4 3.6
VI – Input Voltage – V
Efficiency
–
%
IO = 164 mA
IO = 216 mA
IO = 116 mA
VO = 3.3 V
TC = 25°C
IN
LBI
C1+
C1–
ENABLE
PGND GND
OUT
FB
LBO
C2+
C2–
CO
22
F
Ci
10
F
Output
3.3 V
C2
2.2
F
C1
2.2
F
R1
R2
Input
1.8 V to 3.6 V
OFF/ON
efficiency (TPS60120, TPS60121)
typical operating circuit
R3
TPS60120
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.
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.
PowerPAD is a trademark of Texas Instruments Incorporated.
相關PDF資料 |
PDF描述 |
|---|---|
| TPS60122PWP | 0.2 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20 |
| TPS60123PWPG4 | 0.2 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20 |
| TPS60120PWPRG4 | 0.2 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20 |
| TPS60125PWPG4 | 0.2 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20 |
| TPS60124PWPG4 | 0.2 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS60121PWPRG4 | 功能描述:電荷泵 Reg 3.3V Hi-Eff Chrg Pump DC/DC Converter 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 |
| TPS60122 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:REGULATED 3.3 V, 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS |
| TPS60122PWP | 功能描述:電荷泵 Reg 3.3V Hi-Eff Chrg Pump DC/DC Converter 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 |
| TPS60122PWPG4 | 功能描述:電荷泵 Reg 3.3V Hi-Eff Chrg Pump DC/DC Converter 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 |
| TPS60122PWPR | 功能描述:電荷泵 Reg 3.3V Hi-Eff Chrg Pump DC/DC Converter 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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