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参数资料
| 型号： | TPS61120RSARG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.6 A BATTERY CHARGE CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PQCC16 |
| 封装： | 4 X 4 MM, GREEN, PLASTIC, QFN-16 |
| 文件页数： | 11/32页 |
| 文件大小： | 844K |
| 代理商： | TPS61120RSARG4 |
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LAYOUT CONSIDERATIONS
APPLICATION EXAMPLES
SWN
C3
10
F
L1
10
H
R1
R2
VBAT
VOUT
LDOIN
LDOSENSE
LDOOUT
R7
R9
C6
2.2
F
C4
100
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
F
1.5 V,
>120 mA
LBO
PGOOD
SWP
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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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS61121 | 制造商:TI 制造商全称:Texas Instruments 功能描述:SYNCHRONOUS BOOST CONVERTER WITH 1.1A SWITCH AND INTEGRATED LDO |
| TPS61121EVM-205 | 功能描述:电源管理IC开发工具 TPS61121-205 Eval Mod RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| TPS61121PW | 功能描述:直流/直流开关调节器 3.3V Boost Cnvrtr w/1.5V 200mA LDO RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS61121PWG4 | 功能描述:直流/直流开关调节器 3.3V Boost Cnvrtr w/1.5V 200mA LDO RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS61121PWR | 功能描述:开关变换器、稳压器与控制器 3.3V Boost Cnvrtr w/1.5V 200mA LDO RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
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