參數(shù)資料
型號(hào)： MIC2199BML
廠商： MICREL INC
元件分類： 穩(wěn)壓器
英文描述： 300kHz 4mm 】 4mm Synchronous Buck Converter
中文描述： SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO12
封裝： 4 X 4 MM, MLF-12
文件頁(yè)數(shù)： 1/15頁(yè)
文件大小： 222K
代理商： MIC2199BML
November 2004
1
MIC2199
MIC2199
Micrel
MIC2199
300kHz 4mm
×
4mm Synchronous Buck Converter
General Description
The MIC2199 is a high-power 300kHz synchronous buck
DC-to-DC controller housed in a small 4mm
×
4mm MLF
12-lead package. The MIC2199 operates from a wide 4.5V to
32V input and can be programmed for output voltages from
0.8V to 6V. The wide input voltage capability makes the
MIC2199 an ideal solution for point-of-load DC-to-DC con-
version in 5V, 12V, 24V, and 28V systems.
The 300kHz switching frequency allows the use of a small
inductor and small output capacitors. The current mode PWM
control along with the external COMP pin allows for ease of
stability compensation and fast transient response across a
wide range of applications.
An all N-Channel synchronous architecture and powerful
output drivers allow up to 20A of output current capability.
For smaller external components, refer to the 500kHz
MIC2198.
The MIC2199 is available in a 12-pin 4mm
×
4mm MLF
package with a junction temperature range from –40
°
C to
125
°
C.
Features
4.5V to 32V input range
4mm
×
4mm MLF package
300kHz PWM operation
95% efficiency
Output voltage adjustable down to 0.8V
20A output current capability
Drives all N-Channel MOSFETs
Logic controlled micropower shutdown
Cycle-by-cycle current limiting
Adjustable undervoltage lockout
Frequency foldback overcurrent protection
Applications
Point-of-load DC-to-DC conversion from 5V, 12V,
24V, 28V supplies
Telecom equipment
Wireless modems
Servers
Base stations
Micrel, Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
MLF and
Micro
LeadFrame are trademarks of Amkor Technology, Inc.
Typical Application
!
"
#
"
"!
4.5V–24V to 3.3V/7A Converter
85.0
90.0
95.0
100.0
0
2
4
6
8
E
I
LOAD
(A)
V
OUT
= 3.3V
Efficiency for
V
IN
= 5V and V
OUT
= 3.3V
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MIC2199BML TR 功能描述:IC REG CTRLR BUCK PWM CM 12-MLF RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR)
MIC2199YML 功能描述:DC/DC 開關(guān)控制器 300KHz 12 Lead Sync Buck Controller - Lead Free RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MIC2199YML EV 功能描述:電源管理IC開發(fā)工具 300KHz 12 Lead Sync Buck Controller - Evaluation Board RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
MIC2199YML TR 功能描述:DC/DC 開關(guān)控制器 300KHz 12 Lead Sync Buck Controller (Lead Free) RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MIC2199YML-TR 功能描述:Buck Regulator Positive Output Step-Down DC-DC Controller IC 12-MLF? (4x4) 制造商:microchip technology 系列:- 包裝:剪切帶（CT） 零件狀態(tài):停產(chǎn) 輸出類型:晶體管驅(qū)動(dòng)器 功能:降壓 輸出配置:正 拓?fù)?降壓 輸出數(shù):1 輸出階段:1 電壓 - 電源（Vcc/Vdd）:4.5 V ~ 32 V 頻率 - 開關(guān):300kHz 占空比（最大）:0.85 同步整流器:是 時(shí)鐘同步:無(wú) 串行接口:- 控制特性:使能 工作溫度:-40°C ~ 125°C （TJ） 封裝/外殼:12-VFDFN 裸焊盤，12-MLF? 供應(yīng)商器件封裝:12-MLF?（4x4） 標(biāo)準(zhǔn)包裝:1
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