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參數資料
| 型號： | MIC2199BML |
| 廠商： | MICREL INC |
| 元件分類： | 穩壓器 |
| 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 |
| 文件頁數： | 1/15頁 |
| 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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相關代理商/技術參數 |
參數描述 |
|---|---|
| MIC2199BML TR | 功能描述:IC REG CTRLR BUCK PWM CM 12-MLF RoHS:否 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 切換控制器 系列:- 標準包裝:4,000 系列:- PWM 型:電壓模式 輸出數: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 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 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 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| MIC2199YML EV | 功能描述:電源管理IC開發工具 300KHz 12 Lead Sync Buck Controller - Evaluation Board RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MIC2199YML TR | 功能描述:DC/DC 開關控制器 300KHz 12 Lead Sync Buck Controller (Lead Free) RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 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:停產 輸出類型:晶體管驅動器 功能:降壓 輸出配置:正 拓撲:降壓 輸出數:1 輸出階段:1 電壓 - 電源（Vcc/Vdd）:4.5 V ~ 32 V 頻率 - 開關:300kHz 占空比（最大）:0.85 同步整流器:是 時鐘同步:無 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? 供應商器件封裝:12-MLF?（4x4） 標準包裝:1 |
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