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参数资料
| 型号： | MIC2155YML TR |
| 厂商： | Micrel Inc |
| 文件页数： | 34/35页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 32MLF |
| 特色产品： | MIC2155/6 Buck Control IC |
| 标准包装： | 1 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 550kHz |
| 占空比： | 80% |
| 电源电压： | 4.5 V ~ 14.5 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 ~ 125°C |
| 封装/外壳： | 32-VFQFN 裸露焊盘，32-MLF? |
| 包装： | 标准包装 |
| 产品目录页面： | 1091 (CN2011-ZH PDF) |
| 其它名称： | 576-3527-6 |
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Micrel, Inc.
Ceramic capacitors are recommended for most
decoupling and filtering applications because of their low
impedance and small size. Depending on the
application, most dielectrics (X5R, X7R, NPO) are
acceptable, however, Z5U type ceramic capacitor
dielectrics are not recommended due to their large
change in capacitance over temperature and voltage.
Design and Layout Checklist
? Ceramic capacitor placed between the HS FET drain
and the LSFET source.
? MOSFET gate drive traces must be low inductance
and routed away from noise sensitive analog signals,
components and ground planes.
? The signal and power ground planes must be
separated to prevent high current and fast switching
signals from interfering with the low level, noise
sensitive analog signals. These planes should be
connected at only 1 point, next to the MIC2155/6
controller.
? The following signals and their components should be
decoupled or referenced to the power ground plane:
VIN1, VIN2, VDD, PGND1, PGND2
MIC2155/2156
? These analog signals should be referenced or
decoupled to the analog ground plane:
AVDD, SYNC, EN, SS, PGOOD, COMP1, COMP2,
FB2, EA2, VOUT, FB1, AGND
? Place the current sharing RC components (that
connect across the inductor) and any related filtering
components close to the FB2, EA2+ and VOUT pins
(18, 17, 20). The traces connecting the inductors and
these components should be routed close together to
minimize pickup or EMI radiation.
? Place the overcurrent sense resistor close to the CS1
pin (pin 4). The trace coming from the switch node to
this resistor has high dv/dt and should be routed away
from other noise sensitive components and traces.
? The remote sense traces must be routed close
together or on adjacent layers to minimize noise
pickup. The traces should be routed away from the
switch node, inductors, MOSFETs and other high
dv/dt or di/dt sources.
November 2009
34
M9999-111209-B
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC2156 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Two-Phase, Single-Output, PWM Synchronous Buck Control IC |
| MIC2156YML | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:2-Phase, Single Output, PWM Synchronous Buck Control IC |
| MIC2156YML TR | 功能描述:DC/DC 开关控制器 Single Output, PWM Sync Buck Controller 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 |
| MIC2156YML-TR | 功能描述:Buck Regulator Positive Output Step-Down DC-DC Controller IC 32-MLF? (5x5) 制造商:microchip technology 系列:- 包装:剪切带（CT） 零件状态:过期 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:2 输出阶段:2 电压 - 电源（Vcc/Vdd）:4.5 V ~ 14.5 V 频率 - 开关:300kHz 占空比（最大）:0.8 同步整流器:是 时钟同步:是 串行接口:- 控制特性:限流，使能，电源良好，软启动 工作温度:-40°C ~ 125°C （TJ） 封装/外壳:32-VFQFN 裸露焊盘，32-MLF? 供应商器件封装:32-MLF?（5x5） 标准包装:1 |
| MIC2159 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:SYNCHRONOUS-itty⑩ Step-Down Converter IC |
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