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參數(shù)資料
| 型號： | MIC2290BML |
| 廠商： | MICREL INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Replaced by PTH05060W : |
| 中文描述： | 2 A SWITCHING REGULATOR, 1350 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 2 X 2 MM, MLF-8 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 98K |
| 代理商： | MIC2290BML |
August 2004
1
M9999-081104
MIC2290
Micrel
MIC2290
2mm
×
2mm PWM Boost Regulator with
Internal Schotty Diode
General Description
The MIC2290 is a 1.2MHz , PWM, boost-switching regulator
housed in the small size 2mm
×
2mm MLF-8 package. The
MIC2290 features an internal Schottky diode that reduces
circuit board area and total solution cost. High power density
is achieved with the MIC2290’s internal 34V/0.5A switch,
allowing it to power large loads in a tiny footprint.
The MIC2290 implements a constant frequency 1.2MHz
PWM control scheme. The high frequency operation saves
board space by reducing external component sizes. The
fixed frequency PWM topology also reduces switching noise
and ripple to the input power source.
The MIC2290’s wide 2.5V to 10V input voltage allows direct
operation from 3- to 4-cell NiCad/NiMH/Alkaline batteries, 1-
and 2-cell Li Ion batteries, as well as fixed 3.3V and 5V
systems.
The MIC2290 is available in a low-profile 2mm
×
2mm
8-pin MLF leadless package and operates from 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
4, 8
L1
10
μ
H
R2
R1
1
7
3
2
MIC2290BML
VIN
Li Ion
Battery
V
12V
EN
SW
OUT
GND
V
IN
C1
1
μ
F
C2
10
μ
F
FB
6
Simple 12V Boost Regulator
Features
Internal Schottky diode
2.5V to 10V input voltage
Output voltage adjustable to 34V
Over 500mA switch current
1.2MHz PWM operation
Stable with ceramic capacitors
<1% line and load regulation
Low input and output ripple
<1
μ
A shutdown current
UVLO
Output overvoltage protection
Over temperature protection
2mm
×
2mm 8-pin MLF
package
–
40
°
C to +125
°
C junction temperature range
Applications
Organic EL power supply
TFT LCD bias supply
12V DSL power supply
CCD bias supply
SEPIC converters
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
MicroeadFrame and MLF are trademarks of Amkor Technology, Inc.
60
65
70
75
80
85
0
0.02
LOAD CURRENT (A)
0.04
0.06
0.08
0.1
E
12V
OUT
Efficiency
V
IN
= 4.2V
V
IN
= 3.2V
V
IN
= 3.6V
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC2290BML TR | 功能描述:IC REG BOOST ADJ 0.5A 8MLF RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:20 系列:SIMPLE SWITCHER® 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:12V 輸入電壓:4 V ~ 60 V PWM 型:電壓模式 頻率 - 開關(guān):52kHz 電流 - 輸出:1A 同步整流器:無 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:16-DIP（0.300"，7.62mm） 包裝:管件 供應(yīng)商設(shè)備封裝:16-DIP 其它名稱:*LM2575HVN-12LM2575HVN-12 |
| MIC2290YML | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:2mm 】 2mm PWM Boost Regulator with Internal Schotty Diode |
| MIC2290YML TR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.2MHz PWM Boost w/Internal Schottky (Lead Free) RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MIC2290YMLTR | 制造商:Micrel 功能描述:Conv DC-DC Single Step Up 2.5V to 10V |
| MIC2290YML-TR | 功能描述:Boost Switching Regulator IC Positive Adjustable 2.5V 1 Output 750mA (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?fù)?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:750mA（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(biāo)準(zhǔn)包裝:1 |
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