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參數(shù)資料
| 型號： | MP1570 |
| 廠商： | Monolithic Power Systems, Inc. |
| 英文描述： | 3A, 23V, 340KHz Synchronous Step-Down Converter |
| 中文描述： | 第3A，為23V，340KHz的同步降壓轉(zhuǎn)換器 |
| 文件頁數(shù)： | 5/5頁 |
| 文件大?。?/td> | 270K |
| 代理商： | MP1570 |
EV1570DN-00A – 3A, 23V, 340KHz SYNCHRONOUS STEP-DOWN CONVERTER
EVALUATION BOARD – INITIAL RELEASE
NOTICE:
The information in this document is subject to change without notice. Please contact MPS for current specifications.
Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS
products into any application. MPS will not assume any legal responsibility for any said applications.
EV1570DN-00A Rev. 1.1
4/6/2005
www.MonolithicPower.com
5
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2005 MPS. All Rights Reserved.
QUICK START GUIDE
1. Connect the positive terminal of the load to VOUT pins, and the negative terminal of the load to
GND pins.
2. Preset power supply output to 4.75V to 23V and turn off the power supply.
3. Connect the positive terminal of the power supply output to VIN pin, and the negative terminal of
the power supply output to GND pin.
4. Turn power supply on and the MP1570 will automatically startup.
5. To use Enable function, apply a digital input to EN pin. Drive EN higher than 2.5V to turn on the
regulator, drive EN less than 0.7V to turn it off.
6. An under voltage lockout (UVLO) function can be implemented by the addition of a resistor
divider R4 and R5. The EN threshold is 2.5V, so VIN UVLO threshold is:
V
5
×
5
R
4
R
1
+
.
RECOMMENDED COMPONENTS FOR STANDARD OUTPUT VOLTAGES
The output voltage of this board is set to 3.3V. This board is laid out to accommodate most commonly
used inductors and output capacitors and to be programmed for most standard output voltages. The
following table lists recommended components for some standard output voltages. Listed
compensation components (R2, C3) values are based on the output capacitor installed on this board.
For other capacitors, refer to the Application Information section of the MP1570 datasheet..
V
OUT
1.8V
2.5V
3.3V
5V
12V
R1
R2
5.6k
4.7k
5.6k
7.5k
10k
C3
3.3nF
4.7nF
3.3nF
3.3nF
1.2nF
L1
4.7μH
4.75k
10.5k
16.9k
30.9k
88.7k
4.7μH to 6.8μH
6.8μH to 10μH
10μH to 15μH
15μH to 22μH
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MP1580HP | 2A, 380 KHz Step-Down Converter |
| MP1580HS | 2A MP1580 Step Down Switch Mode Converter |
| MP1591DN | 2A, 32V, 330KHz Step-Down Converter |
| MP1591 | 2A, 32V, 330KHz Step-Down Converter |
| MP1591_06 | 2A, 32V, 330KHz Step-Down Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MP1570DN | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:3A, 23V, 340KHz Synchronous Rectified Step-Down Converter |
| MP1570DN-LF | 制造商:Monolithic Power Systems 功能描述:3A/23V SYNCH STEP-DOWN CONVERTER - Bulk |
| MP1570DN-LF-Z | 制造商:Monolithic Power Systems 功能描述:CONV DC-DC SGL-OUT STEP DOWN 8SOIC-EP - Tape and Reel 制造商:MPS 功能描述:STEP DOWN SWITCHER / SOIC 8N (LEAD FREE) |
| MP157GJ-P | 制造商:Monolithic Power Systems 功能描述:6W ACDC BUCK REGULATOR - Tape and Reel |
| MP157GJ-Z | 制造商:Monolithic Power Systems 功能描述:6W ACDC BUCK REGULATOR - Tape and Reel |
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