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| 型号： | TPS43000PWRG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | GREEN, TSSOP-16 |
| 文件页数： | 17/31页 |
| 文件大小： | 615K |
| 代理商： | TPS43000PWRG4 |
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TPS43000
SLUS489 OCTOBER 2001
24
www.ti.com
APPLICATION INFORMATION
Table 1. SMT Commercial Inductor Manufacturers
Coilcraft Inc.
(800) 3222645
1102 Silver Lake RD, Cary, IL 60013
Coiltronics Inc.
(407) 2417876
6000 Park of Commerce Blvd, Boca Raton, FL 33487
Dale Electronics, Inc.
(605) 6659301
East Highway 50, Yankton, SD 57078
Pulse Engineering Ltd.
(204) 633432
1300 Keewatin Street, Winnipeg, MB R2X 2R9
Sumida
18475456700
Fax 18475456720
1701 Golf Road, Tower 3, Suite 400,
Rolling Meadows, IL 60008
BH Electronics
(612) 8949590
12219 Wood Lake Drive, Burnsville, MN 55337
Tokin America Inc.
(408) 4328020
155 Nicholson Lane, San Jose CA 95134
selecting the filter capacitor
The input and output filter capacitors must have low ESR and low ESL. Surface-mount tantalum, OSCONs or
multilayer ceramics (MLCs) are recommended. The capacitor selected must have the proper ripple current
rating for the application. Some recommended capacitor types are listed in Table 2.
Table 2. Recommended SMT Filter Capacitors
Manufacturer
Part Number
Features
AVX
TPS series
Low ESR tantalum
Kemet
T410 series
Low ESR tantalum
Murata
GRM series
Low ESR ceramic
Sanyo
OSCON series
Low ESR organic
Sprague
591D series
Low ESR, low profile tantalum
Sprague
594D series
Low ESR tantalum
Tokin
Y5U, Y5V Type
Low ESR ceramic
Taiyo Yuden
X5R Type
Low ESR ceramic
circuit layout and grounding
As with any high-frequency switching power supply, circuit layout, hookup, and grounding are critical for proper
operation. Although this may be a relatively low-power, low-voltage design, these issues are still very important.
The MOSFET turn-on and turn-off times necessary to maintain high efficiency at high switching frequencies of
1 MHz or more result in high dv/dt and di/dts. This makes stray circuit inductance especially critical. In addition,
the high impedances associated with low-power designs, such as in the feedback divider, make them especially
susceptible to noise pickup.
layout
The component layout should be as tight as possible to minimize stray inductance. This is especially true of the
high-current paths, such as in series with the MOSFETs and the input and output filter capacitors.
The components associated with the feedback, compensation and timing should be kept away from the power
components (MOSFETs, inductor). Keep all components as close to the device pins as possible. Nodes that
are especially noise sensitive are the FB, RT and COMP pins.
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| TPS43060 | 制造商:TI 制造商全称:Texas Instruments 功能描述:Low Quiescent Current Synchronous Boost DC-DC Controller with Wide VIN Range |
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| TPS43060RTER | 功能描述:DC/DC 开关控制器 Sync Boost Cntlr Wide Input Vtg RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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| TPS43061EVM-198 | 功能描述:电源管理IC开发工具 TPS43061 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 |
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