參數(shù)資料
型號(hào)： TPS62201DBVR
英文描述： DC to DC Converter
中文描述： DC至DC轉(zhuǎn)換器
文件頁(yè)數(shù)： 1/23頁(yè)
文件大小： 358K
代理商： TPS62201DBVR
1
0
SLUS446B – MAY 2000 – REVISED DECEMBER 2000
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
2.5-V to 9-V Input Range
0.8-V to 8-V Output Range
Dual-Auto-Mode for High-Efficiency
at Light Loads
Externally Synchronizable
0
%
to 100
%
Duty Cycle
Low-Quiescient, Standby,
and Shutdown Currents
8-Pin SOIC Package
Four PWM Frequency
Versions (Maximum 2 MHz)
applications
Cellular Telephones
Satellite Telephones
GPS Devices
Digital Still Cameras
PDAs and Handheld Cameras
description
The TPS6210x family of low-power high-efficiency buck converters is designed to operate from 1 or 2 li-ion
cell battery packs. This part, with its wide input range of 2.5 V to 9 V, has an adjustable output from 0.8 V to
8 V and is capable of 500-mA output current. The TPS6210x family of synchronizable dc-to-dc converters is
available in four different operating frequencies: 300 kHz, 600 kHz, 1 MHz, and 2 MHz. The circuit can be
allowed to run at a fixed frequency, or sychronized, using the dual function SD/SYNC input pin.
The TPS6210x family is highly efficient at both low and high output currents. The tri-function MODE input pin
is used to select constant-frequency, auto-mode, or light-load modes of operation. The multimode operation
allows the IC to select the most efficient operating mode, or if desirable, the user can determine which of three
modes to operate in. In the auto-mode, the output load detector circuitry determines if the converter should be
running in the constant-frequency, heavy-load mode, or pulsed-variable frequency, light-load mode.
The TPS6210x family also has a shutdown mode for optimum battery shelf life. The IC utilizes three methods
of overload protection, including thermal shutdown and two levels of overcurrent protection. The TPS6210x is
available in the small outline 8-pin SOIC package.
typical application (automatic mode switcher)
UDG–00059
1
3
2
4
VIN
SD/SYNC
C1
1.0
μ
F
MODE
AGND
8
6
7
5
SW
PGND
FB
COMP
+
LI–ION
LI–ION
R2
113 k
L1
15
μ
H
C4
10
μ
F
MLC
36 k
OUT 3.3 V
0 mA TO 500 mA
TPS62102
R4
30 k
C2
1 n F
D1
10BQ040
R1
1 k
C3
100 pF
+
R3
Copyright
2000, Texas Instruments Incorporated
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+*+#&! ' $$ ()%+)*
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.
1
2
3
4
8
7
6
5
VIN
SD/SYNC
MODE
AGND
SW
PGND
FB
COMP
D PACKAGE
(TOP VIEW)
X
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參數(shù)描述
TPS62201DBVRG4 功能描述:直流/直流開關(guān)調(diào)節(jié)器 300mA Hi-Eff Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS62201DBVT 功能描述:直流/直流開關(guān)調(diào)節(jié)器 300mA Hi-Eff Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS62201DBVTG4 功能描述:直流/直流開關(guān)調(diào)節(jié)器 300mA Hi-Eff Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS62202DBVR 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.8V Out Hi-Eff Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS62202DBVRG4 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.8V Out Hi-Eff Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
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