- 您现在的位置：买卖IC网 > PDF目录1830 > LTC3562EUD#TRPBF (Linear Technology)IC REG BUCK SYNC ADJ QUAD 20QFN PDF资料下载
参数资料
| 型号： | LTC3562EUD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 17/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ QUAD 20QFN |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 4 |
| 输出电压： | 425 mV ~ 800 mV，0.6 V ~ 3.78 V |
| 输入电压： | 2.85 V ~ 5.5 V |
| PWM 型： | 多重 |
| 频率 - 开关： | 2.25MHz |
| 电流 - 输出： | 400mA，600mA |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 20-QFN 裸露焊盘（3x3） |
LTC3562
APPLICATIONS INFORMATION
very thin (<1mm tall) ceramic capacitors ideal for use in
height-restricted designs. Table 8 shows a list of several
ceramic capacitor manufacturers.
Table 8. Recommended Ceramic Capacitor Manufacturers
result in higher thermal resistances.
Furthermore, due to its high frequency switching circuitry,
it is imperative that the input capacitors, inductors, and
output capacitors be as close to the LTC3562 as possible
AVX
Murata
Taiyo Yuden
Vishay Siliconix
TDK
www.avxcorp.com
www.murata.com
www.t-yuden.com
www.vishay.com
www.tdk.com
and that there be an unbroken ground plane under the
LTC3562 and all of its external high frequency compo-
nents. High frequency currents on the LTC3562 tend to
?nd their way along the ground plane in a myriad of paths
ranging from directly back to a mirror path beneath the
incident path on the top of the board. If there are slits or
Printed Circuit Board Layout Considerations
To deliver maximum current under all conditions, it is critical
that the exposed metal pad on the backside of the LTC3562
package be soldered to the PC board ground. Correctly
soldered to a 2500mm 2 double-sided 1oz. copper board,
the LTC3562 has a thermal resistance of less than 68°C/W.
Failure to make thermal contact between the exposed pad
on the backside of the package and the copper board will
cuts in the ground plane due to other traces on that layer,
the current will be forced to go around the slits. If high
frequency currents are not allowed to ?ow back through
their natural least-area path, excessive voltage will build
up and radiated emissions will occur. There should be a
group of vias directly under the grounded backside of the
package leading directly down to an internal ground plane.
To minimize parasitic inductance, the ground plane should
be on the second layer of the PC board.
3562 F05
Figure 5. High Frequency Ground Currents Follow Their Incident Path.
Slices in the Ground Cause High Voltage and Increased Emissions.
3562fa
17
相关PDF资料 |
PDF描述 |
|---|---|
| LTC3563EDC#TRPBF | IC REG BUCK SYNC 0.5A 6DFN |
| LTC3564IS5#TRPBF | IC REG BUCK SYNC ADJ TSOT23-5 |
| LTC3565IMSE#TRPBF | IC REG BUCK SYNC ADJ 10MSOP |
| LTC3568IDD#TRPBF | IC REG BUCK SYNC ADJ 1.8A 10DFN |
| LTC3569IFE#TRPBF | IC REG BUCK SYNC ADJ 16TSSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3563 | 制造商:LINER 制造商全称:Linear Technology 功能描述:500mA, Synchronous Step-Down DC/DC Converter with Selectable Output Voltage |
| LTC3563EDC | 制造商:LINER 制造商全称:Linear Technology 功能描述:500mA, Synchronous Step-Down DC/DC Converter with Selectable Output Voltage |
| LTC3563EDC#TRMPBF | 功能描述:IC REG BUCK SYNC 0.5A 6DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:500 系列:- 类型:切换式电容器（充电泵），反相 输出类型:固定 输出数:1 输出电压:-3V 输入电压:2.3 V ~ 5.5 V PWM 型:Burst Mode? 频率 - 开关:900kHz 电流 - 输出:100mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 细型，TSOT-23-6 包装:带卷 (TR) 供应商设备封装:TSOT-23-6 其它名称:LTC1983ES6-3#TRMTR |
| LTC3563EDC#TRPBF | 功能描述:IC REG BUCK SYNC 0.5A 6DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:500 系列:- 类型:切换式电容器（充电泵），反相 输出类型:固定 输出数:1 输出电压:-3V 输入电压:2.3 V ~ 5.5 V PWM 型:Burst Mode? 频率 - 开关:900kHz 电流 - 输出:100mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 细型，TSOT-23-6 包装:带卷 (TR) 供应商设备封装:TSOT-23-6 其它名称:LTC1983ES6-3#TRMTR |
| LTC3564 | 制造商:LINER 制造商全称:Linear Technology 功能描述:2.25MHz, 1.25A Synchronous Step-Down Regulator |
发布紧急采购，3分钟左右您将得到回复。