参数资料
型号: MIC2193YM
厂商: Micrel Inc
文件页数: 1/10页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 8-SOIC
标准包装: 95
PWM 型: 电流模式
输出数: 1
频率 - 最大: 440kHz
占空比: 100%
电源电压: 2.9 V ~ 14 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 管件
MIC2193
General Description
Micrel
MIC2193
400kHz SO-8 Synchronous Buck Control IC
Features
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
?
?
?
?
?
?
?
?
?
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
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 IN
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
3.3V
0.012 ?
120 μ F
6.3V
( × 2)
MIC2193BM
VIN CS
VDD OUTP
Si9803
( × 2)
3.8 μ H
V OUT
1.8V, 5A
1 μ F
2.2nF
2k
COMP OUTN
GND FB
Si9804
( × 2)
10k
22.6k
220 μ F
6.3V
( × 2)
Adjustable Output Synchronous Buck Converter
Micrel, Inc. ? 1849 Fortune Drive ? San Jose, CA 95131 ? USA ? tel + 1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
April 2004
1
M9999-042704
相关PDF资料
PDF描述
RBC44DRTF-S13 CONN EDGECARD 88POS .100 EXTEND
GCC15DRYS-S734 CONN EDGECARD 30POS DIP .100 SLD
LTC3854IDDB#TRPBF IC REG CTRLR BUCK PWM CM 12-DFN
ESC22DRTN-S13 CONN EDGECARD 44POS .100 EXTEND
LTC3854IMSE#PBF IC REG CTRLR BUCK PWM CM 12-MSOP
相关代理商/技术参数
参数描述
MIC2193YM TR 功能描述:DC/DC 开关控制器 SO-8 3V Synchronous Buck Contoller (Lead Free) RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体: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:- 包装:剪切带(CT) 零件状态:停产 输出类型:晶体管驱动器 功能:降压 输出配置:正 拓扑:降压 输出数:1 输出阶段:1 电压 - 电源(Vcc/Vdd):2.9 V ~ 14 V 频率 - 开关:400kHz 占空比(最大):1 同步整流器:是 时钟同步:无 串行接口:- 控制特性:- 工作温度:-40°C ~ 125°C (TJ) 封装/外壳:8-SOIC(0.154",3.90mm 宽) 供应商器件封装:8-SOIC 标准包装:1
MIC2194 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:SFP Management IC
MIC2194_05 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:400kHz SO-8 Buck Control IC
MIC2194BM 功能描述:IC REG CTRLR BST PWM CM 8-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR)