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參數資料
| 型號： | MIC2193BM |
| 廠商： | MICREL INC |
| 元件分類： | 穩壓器 |
| 英文描述： | 400KHZ SO 8 SYNCHRONOUS BUCK CONTROL IC |
| 中文描述： | SWITCHING CONTROLLER, 440 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | SOIC-8 |
| 文件頁數： | 1/10頁 |
| 文件大小： | 63K |
| 代理商： | MIC2193BM |
April 2004
1
M9999-042704
MIC2193
Micrel
MIC2193
400kHz SO-8 Synchronous Buck Control IC
General Description
Micrel’s MIC2193 is a high efficiency, PWM synchronous
buck control IC housed in the SO-8 package. Its 2.9V to 14V
input voltage range allows it to efficiently step down voltages
in 3.3V, 5V, and 12V systems as well as 1- or 2-cell Li Ion
battery powered applications.
The MIC2193 solution saves valuable board space. The
device is housed in the space-saving SO-8 package, whose
low pin-count minimizes external components. Its 400kHz
PWM operation allows a small inductor and small output
capacitors to be used. The MIC2193 can implement all-
ceramic capacitor solutions.
The MIC2193 drives a high-side P-channel MOSFET, elimi-
nating the need for high-side boot-strap circuitry. This feature
allows the MIC2193 to achieve maximum duty cycles of
100%, which can be useful in low headroom applications. A
low output driver impedance of 4
allows the MIC2193 to
drive large external MOSFETs to generate a wide range of
output currents.
The MIC2193 is available in an 8 pin SOIC package with a
junction temperature range of –40
°
C to +125
°
C.
Typical Application
V
3.3V
0.012
Si9803
(
×
2)
3.8
μ
H
2k
120
μ
F
6.3V
(
×
2)
2.2nF
MIC2193BM
VIN
VDD
CS
OUTP
GND
COMP OUTN
FB
V
1.8V, 5A
Si9804
(
×
2)
22.6k
10k
220
μ
F
6.3V
(
×
2)
1
μ
F
Adjustable Output Synchronous Buck Converter
Features
2.9V to 14V input voltage range
400kHz oscillator frequency
PWM current mode control
100% maximum duty cycle
Front edge blanking
4
output drivers
Cycle-by-cycle current limiting
Frequency foldback short circuit protection
8 lead SOIC package
Applications
Point of load power supplies
Distributed power systems
Wireless Modems
ADSL line cards
Servers
Step down conversion in 3.3V, 5V, and 12V systems
1-and 2-cell Li Ion battery operated equipment
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
相關PDF資料 |
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| MIC2193YM | 400KHZ SO 8 SYNCHRONOUS BUCK CONTROL IC |
| MIC2194 | SFP Management IC |
| MIC2194BM | 400kHz SO-8 Buck Control IC |
| MIC3000 | SFP Management IC |
| MIC3000BML | SFP Management IC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MIC2193BM TR | 功能描述:IC REG CTRLR BUCK PWM CM 8-SOIC 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) |
| MIC2193PM | 制造商:Micrel Inc 功能描述: |
| MIC2193YM | 功能描述:DC/DC 開關控制器 SO-8 3V Synchronous Buck Contoller (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 |
| MIC2193YM TR | 功能描述:DC/DC 開關控制器 SO-8 3V Synchronous Buck Contoller (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 |
| MIC2193YM-TR | 功能描述:Buck Regulator Positive Output Step-Down DC-DC Controller IC 8-SOIC 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）:2.9 V ~ 14 V 頻率 - 開關:400kHz 占空比（最大）:1 同步整流器:是 時鐘同步:無 串行接口:- 控制特性:- 工作溫度:-40°C ~ 125°C （TJ） 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應商器件封裝:8-SOIC 標準包裝:1 |
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