收藏本站
LTM8027
APPLICATIONS INFORMATION
V OUT
C OUT
C OUT
GND
AUX
BIAS1
SS
RUN
BIAS2
C IN
V IN
R ADJ
GND
R T
SYNC
Figure 3. Suggested Layout
8027 F03
Ensure that the grounding and heat sinking are acceptable.
A few rules to keep in mind are:
1. Place the R ADJ and R T resistors as close as possible to
their respective pins.
2. Place the C IN capacitor as close as possible to the V IN
and GND connection of the LTM8027.
3. Place the C OUT capacitor as close as possible to the
V OUT and GND connection of the LTM8027.
4. Place the C IN and C OUT capacitors such that their
ground current flow directly adjacent to or underneath
the LTM8027.
5. Connect all of the GND connections to as large a copper
pour or plane area as possible on the top layer. Avoid
breaking the ground connection between the external
components and the LTM8027.
Use vias to connect the GND copper area to the board’s
internal ground planes. Liberally distribute these GND vias
to provide both a good ground connection and thermal
path to the internal planes of the printed circuit board. Pay
attention to the location and density of the thermal vias in
Figure 3. The LTM8027 can benefit from the heat sinking
afforded by vias that connect to internal GND planes at
these locations, due to their proximity to internal power
handling components. The optimum number of thermal
vias depends upon the printed circuit board design. For
example, a board might use very small via holes. It should
employ more thermal vias than a board that uses larger
holes.
Thermal Considerations
The LTM8027 output current may need to be derated if it
is required to operate in a high ambient temperature or
deliver a large amount of continuous power. The amount
of current derating is dependent upon the input voltage,
output power and ambient temperature. The temperature
rise curves given in the Typical Performance Character-
istics section can be used as a guide. These curves were
generated by a LTM8027 mounted to a 58cm 2 4-layer FR4
printed circuit board. Boards of other sizes and layer count
can exhibit different thermal behavior, so it is incumbent
upon the user to verify proper operation over the intended
system’s line, load and environmental operating conditions.
8027fb
15
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
LTM8032MPY#PBF IC DC/DC UMODULE 2A 71BGA
LTM8033MPV#PBF IC DC-DC UMODULE BUCK 3A 76-LGA
LTM8040IV#PBF IC LED DRVR HP CONST CURR 66-LGA
LTM8042IV#PBF IC UMODULE LED DRIVER 56LGA
LTM8048MPY#PBF IC DC/DC UMODULE LDO BGA
LTM8052AEV#PBF IC UMODULE 36VIN 5A CVCC 81LGA
M30R224K5 CAP CER 0.22UF 50V 10% RADIAL
M39014/22-0709 CAP CER 1000PF 100V 1% RADIAL
相关代理商/技术参数
LTM8027EV#PBF 制造商:Linear Technology 功能描述:DC/DC Converter IC 制造商:Linear Technology 功能描述:IC, STEP-DOWN DC/DC MODULE REG, LGA-113
LTM8027EVPBF 制造商:Linear Technology 功能描述:DC/DC Regulator 4A 60Vin 2.5-24Vout
LTM8027IV 制造商:LINER 制造商全称:Linear Technology 功能描述:60V, 4A DC/DC Module Regulator
LTM8027IV#PBF 功能描述:IC BUCK SYNC ADJ 4A 113LGA RoHS:是 类别:电源 - 板载 >> DC DC Converters 系列:µModule® 设计资源:VI-200, VI-J00 Design Guide, Appl Manual 标准包装:1 系列:* 类型:隔离 输出数:1 电压 - 输入（最小）:21V 电压 - 输入（最大）:32V Voltage - Output 1:5V Voltage - Output 2:- Voltage - Output 3:- 电流 - 输出（最大）:* 电源（瓦） - 制造商系列:100W 电压 - 隔离:* 特点:* 安装类型:通孔 封装/外壳:9-SlimMod 尺寸/尺寸:4.60" L x 1.80" W x 0.52" H（116.8mm x 45.7mm x 13.2mm） 包装:散装 工作温度:-25°C ~ 85°C 效率:* 电源（瓦特）- 最大:*
LTM8027IV#PBF 制造商:Linear Technology 功能描述:DC/DC Converter IC
LTM8027IVPBF 制造商:LINER 制造商全称:Linear Technology 功能描述:60V, 4A DC/DC Module Regulator
LTM8027MPV 制造商:LINER 制造商全称:Linear Technology 功能描述:60V, 4A DC/DC Module Regulator
LTM8027MPV#PBF 功能描述:IC BUCK SYNC ADJ 4A 113LGA RoHS:是 类别:电源 - 板载 >> DC DC Converters 系列:µModule® 设计资源:Maxi/Mini/Micro Design Guide, Appl Manual 标准包装:1 系列:微型 类型:隔离 输出数:1 电压 - 输入（最小）:18V 电压 - 输入（最大）:36V Voltage - Output 1:48V Voltage - Output 2:- Voltage - Output 3:- 电流 - 输出（最大）:* 电源（瓦） - 制造商系列:100W 电压 - 隔离:* 特点:* 安装类型:通孔 封装/外壳:模块 尺寸/尺寸:2.28" L x 1.45" W x 0.62" H（57.9mm x 36.8mm x 15.7mm） 包装:散装 工作温度:-20°C ~ 100°C 效率:* 电源（瓦特）- 最大:* 其它名称:1102-1290V24C48C100BL-ND