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參數(shù)資料
| 型號(hào)： | MP1522_06 |
| 廠商： | Monolithic Power Systems, Inc. |
| 英文描述： | 25V Step-Up Converter in a SOT23-5 Package |
| 中文描述： | 25V的升壓轉(zhuǎn)換器采用SOT23 - 5封裝 |
| 文件頁數(shù)： | 5/6頁 |
| 文件大小： | 180K |
| 代理商： | MP1522_06 |
MP1522 – 25V STEP-UP CONVERTER IN A SOT23-5 PACKAGE
MP1522 Rev. 2.0
9/1/2006
www.MonolithicPower.com
5
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2006 MPS. All Rights Reserved.
Diode
The high switching frequencies of the MP1522
require the use of fast recovery or Schottky
barrier diodes. In low voltage applications
Schottky barrier diodes are recommended for
maximum efficiency. The reverse breakdown
voltage should be approximately 1.5X the
output voltage.
Printed Circuit Board Layout
The printed circuit board layout is important in
order to minimize noise and prevent erratic
operation. Keep the ground leads short and
robust with minimum lead lengths between the
input and output capacitors and ground. Place
the feedback resistive voltage divider as close
to FB as possible to prevent switching noise
injection into FB. The use of surface mount
capacitors with their low ESL is required to
minimize noise at the MP1522. Use separate
power and quiet ground planes connected
together at a single point whenever possible to
minimize
.
ground
.
bounce.
Table 1—Output Current vs. Input Voltage
V
IN
(V)
V
OUT
(V)
3.3
5
3.3
12
3.3
18
3.3
25
5
12
5
18
5
25
10
12
10
18
10
25
I
OUT
(mA)
67
28
15
10
44
32
19
122
75
51
MP1522
BIAS
FB
SW
GND
EN
2
4
3
5
1
OFF ON
V
OUT
20V
V
IN
3.3V
C2
1nF
D1
RB751
Figure 2—Typical Boost Application
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| MP1522ET-LF-P | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 .3A Switch / 25Vout Step-Up Converter RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| MP1522ET-LF-Z | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 .3A Switch / 25Vout Step-Up Converter RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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