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參數(shù)資料
| 型號： | MIC2288YML |
| 廠商： | MICREL INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1A 1.2 MHZ PWM BOOST CONVERTER IN THIN SOT 23 AND 2 X MLF |
| 中文描述： | 2 A SWITCHING REGULATOR, 1350 kHz SWITCHING FREQ-MAX, DSO8 |
| 封裝： | 2 X 2 MM, LEAD-FREE, MLF-8 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 116K |
| 代理商： | MIC2288YML |
February 2004
1
M9999-021904
MIC2288
Micrel
MIC2288
1A 1.2MHz PWM Boost Converter in
Thin SOT-23 and 2
×
2 MLF
General Description
The MIC2288 is a 1.2MHz PWM, DC/DC boost switching
regulator available in low-profile Thin SOT-23 and
2mm
×
2mm MLF package options. High power density is
achieved with the MIC2288’s internal 34V/1A switch, allow-
ing it to power large loads in a tiny footprint.
The MIC2288 implements a constant frequency, 1.2MHz
PWM, current mode control scheme with internal compensa-
tion that offers excellent transient response and output regu-
lation performance. The high frequency operation saves
board space by allowing small, low-profile, external compo-
nents. The fixed frequency PWM topology also reduces
spurious switching noise and ripple to the input power source.
The MIC2288 is available in a low-profile Thin SOT-23-5
package and a 2mm
×
2mm MLF-8 leadless package. The
2mm
×
2mm MLF-8 package option has an output over-
voltage protection feature.
The MIC2288 has a junction temperature range of –40
°
C to
+125
°
C.
All support documentation can be found on Micrel’s web
site at www.micrel.com.
Typical Application
2
L1
10
μ
H
R2
R1
3
1
4
5
MIC2288BD5
VIN
1-Cell
Li Ion
V
15V
EN
SW
FB
GND
V
IN
C1
2.2
μ
F
C2
10
μ
F
2mm
×
2mm MLF
Boost Regulator
Features
2.5V to 10V input voltage range
Output voltage adjustable to 34V
Over 1A switch current
1.2MHz PWM operation
Stable with ceramic capacitors
High-efficiency
<1% line and load regulation
Low input and output ripple
<1
μ
A shutdown current
UVLO
Output overvoltage protection (MIC2288BML)
Over temperature shutdown
Thin SOT-23-5 package option
2mm
×
2mm leadless MLF
-8 package option
–
40
°
C to +125
°
C junction temperature range
Applications
Organic EL power supply
TFT-LCD bias supply
12V supply for DSL applications
Multi-output DC/DC converters
Positive and negative output regulators
SEPIC converters
Micrel, Inc.
1849 Fortune Drive
San Jose, CA 95131
USA
tel + 1 (408) 944-0800
fax + 1 (408) 944-0970
http://www.micrel.com
MLF and MicroeadFrame are trademarks of Amkor Technology, Inc.
60
65
70
75
80
85
90
0
0.05
0.1
0.15
0.2
E
LOAD (A)
15V
OUT
Efficiency
V
IN
= 4.2V
V
IN
= 3.2V
V
IN
= 3.6V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MIC2291BD5 | 1.2A PWM Boost Regulator Photo Flash LED Driver |
| MIC2291-34YML | 1.2A PWM Boost Regulator Photo Flash LED Driver |
| MIC2291 | Replaced by PTH05060W : |
| MIC2291-15BML | Replaced by PTH05060W : |
| MIC2291-15YML | Replaced by PTH05060W : |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC2288YML TR | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1.2MHz PWM Boost Converter (Lead Free) RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| MIC2288YML-TR | 功能描述:Boost Switching Regulator IC Positive Adjustable 2.5V 1 Output 1.2A (Switch) 8-VFDFN Exposed Pad, 8-MLF? 制造商:microchip technology 系列:- 包裝:剪切帶（CT） 零件狀態(tài):有效 功能:升壓 輸出配置:正 拓撲:升壓 輸出類型:可調(diào)式 輸出數(shù):1 電壓 - 輸入（最小值）:2.5V 電壓 - 輸入（最大值）:10V 電壓 - 輸出（最小值/固定）:2.5V 電壓 - 輸出（最大值）:34V（開關(guān)） 電流 - 輸出:1.2A（開關(guān)） 頻率 - 開關(guān):1.2MHz 同步整流器:無 工作溫度:-40°C ~ 125°C （TJ） 安裝類型:表面貼裝 封裝/外殼:8-VFDFN 裸露焊盤，8-MLF? 供應(yīng)商器件封裝:8-MLF?（2x2） 標準包裝:1 |
| MIC2289 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:2mm 】 2mm White LED Driver with Internal Schottky Diode and OVP |
| MIC2289_11 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:White LED Driver Internal Schottky Diode and OVP |
| MIC2289-15BML | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:2mm 】 2mm White LED Driver with Internal Schottky Diode and OVP |
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