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參數(shù)資料
| 型號： | TPS61120 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | SYNCHRONOUS BOOST CONVERTER WITH 1.1A SWITCH AND INTEGRATED LDO |
| 中文描述： | 同步升壓轉(zhuǎn)換器與1.1A的開關(guān)和集成穩(wěn)壓器 |
| 文件頁數(shù)： | 19/25頁 |
| 文件大?。?/td> | 462K |
| 代理商： | TPS61120 |
www.ti.com
LAYOUT CONSIDERATIONS
APPLICATION EXAMPLES
SWN
SWP
C3
10
μ
F
L1
10
μ
H
R1
R2
VBAT
VOUT
LDOIN
LDOOUT
LDOSENSE
R7
R9
C6
2.2
μ
F
C4
100
μ
F
U1
LBO
PGOOD
PGND
LBI
SKIPEN
EN
LDOEN
GND
TPS61121PW
List of Components:
U1 = TPS61121PW
L1 = Sumida CDRH73–100
C3, C5, C6 = X7R/X5R Ceramic
C4 = Low ESR Tantalum
3.3 V,
>250 mA
C5
2.2
μ
F
1.5 V,
>120 mA
LBO
PGOOD
TPS61120
TPS61122, TPS61121
SLVS427C–JUNE 2002–REVISED APRIL 2004
As for all switching power supplies, the layout is an important step in the design, especially at high peak currents
and high switching frequencies. If the layout is not carefully done, the regulator could show stability problems as
well as EMI problems. Therefore, use wide and short traces for the main current path and for the power ground
tracks. The input capacitor, output capacitor, and the inductor should be placed as close as possible to the IC.
Use a common ground node for power ground and a different one for control ground to minimize the effects of
ground noise. Connect these ground nodes at any place close to one of the ground pins of the IC.
The feedback divider should be placed as close as possible to the control ground pin of the IC. To lay out the
control ground, it is recommended to use short traces as well, separated from the power ground traces. This
avoids ground shift problems, which can occur due to superimposition of power ground current and control
ground current.
Figure 25. Solution for Maximum Output Power
19
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| TPS61120EVM-205 | 功能描述:電源管理IC開發(fā)工具 TPS61120-205 Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS61120PW | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 Adj Hi-Eff Boost Cnvrtr w/200mA LDO 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 |
| TPS61120PWG4 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 Adj Hi-Eff Boost Cnvrtr w/200mA LDO 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 |
| TPS61120PWR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 Adj Hi-Eff Boost Cnvrtr w/200mA LDO 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 |
| TPS61120PWRG4 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 Adj Hi-Eff Boost Cnvrtr w/200mA LDO 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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