参数资料
| 型号： | ISL6554CBZ-T |
| 厂商： | Intersil |
| 文件页数： | 15/16页 |
| 文件大小： | 0K |
| 描述： | IC PWM CORE VOLTAGE REG 20-SOIC |
| 标准包装： | 1,000 |
| 应用： | 控制器，Intel Itanium? |
| 输入电压： | 4.75 V ~ 5.25 V |
| 输出数： | 4 |
| 输出电压： | 0.95 V ~ 1.7 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC W |
| 包装： | 带卷 (TR) |
ISL6554
I O × r DS ( ON ) × V OUT
I O × V IN × t SW × F SW
P UPPER = ------------------------------------------------------------ + ----------------------------------------------------------
V IN
I O × r DS ( ON ) × ( V IN – V OUT )
V IN
t SW which increases the upper MOSFET switching losses.
Ensure that both MOSFETs are within their maximum
junction temperature at high ambient temperature by
calculating the temperature rise according to package
thermal-resistance specifications. A separate heatsink may
be necessary depending upon MOSFET power, package
type, ambient temperature and air flow.
2
2
2
P LOWER = ---------------------------------------------------------------------------------
A diode, anode to ground, may be placed across Q2 and Q4
of Figure 1. These diodes function as a clamp that catches
the negative inductor swing during the dead time between
the turn off of the lower MOSFETs and the turn on of the
upper MOSFETs. The diodes must be a Schottky type to
prevent the lossy parasitic MOSFET body diode from
conducting. It is usually acceptable to omit the diodes and let
the body diodes of the lower MOSFETs clamp the negative
inductor swing, but efficiency could drop one or two percent
as a result. The diode’s rated reverse breakdown voltage
must be greater than the maximum input voltage.
15
References
Intersil documents are available on the web at
www.intersil.com/
[1] HIP6601/HIP6603 Data Sheet , Intersil Corporation,
File No. 4819
[2] HIP6602 Data Sheet , Intersil Corporation, File No. 4838
FN9003.3
February 11, 2005
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| ISL6556ACBZ | 功能描述:IC CTRLR MULTIPHASE VRM10 28SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器，Intel VR11 输入电压:5 V ~ 12 V 输出数:1 输出电压:0.5 V ~ 1.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN（7x7） 包装:管件 |
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