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参数资料
| 型号： | DC1379A |
| 厂商： | Linear Technology |
| 文件页数： | 15/22页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL LTM8025 |
| 软件下载： | LTM8025 Spice Model |
| 设计资源： | DC1379A Design Files DC1379A Schematic |
| 标准包装： | 1 |
| 系列： | µModule® |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 3.3V |
| 电流 - 输出： | 3A |
| 输入电压： | 5.5 ~ 36 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 250kHz ~ 2MHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | LTM8025 |
| 相关产品： | LTM8025IV#PBF-ND - IC CONVERTER BUCK 3A ADJ 70LGA LTM8025MPV#PBF-ND - IC CONVERTER BUCK 3A ADJ 70LGA LTM8025EV#PBF-ND - IC CONVERTER BUCK 3A ADJ 70LGA |
LTM8025
APPLICATIONS INFORMATION
Thermal Considerations
The LTM8025 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 LTM8025 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.
The junction to air and junction to board thermal resis-
tances given in the Pin Configuration diagram may also
be used to estimate the LTM8025 internal temperature.
These thermal coefficients are determined for maximum
output power per JESD 51-9 “JEDEC Standard, Test Boards
for Area Array Surface Mount Package Thermal Measure-
ments” through analysis and physical correlation. Bear in
mind that the actual thermal resistance of the LTM8025
to the printed circuit board depends upon the design of
the circuit board.
The die temperature of the LTM8025 must be lower than
the maximum rating of 125°C, so care should be taken in
the layout of the circuit to ensure good heat sinking of the
LTM8025. The bulk of the heat flow out of the LTM8025
is through the bottom of the module and the LGA pads
into the printed circuit board. Consequently a poor printed
circuit board design can cause excessive heating, result-
ing in impaired performance or reliability. Please refer to
the PCB Layout section for printed circuit board design
suggestions.
The LTM8025 is equipped with a thermal shutdown that
will inhibit power switching at high junction temperatures.
The activation threshold of this function, however, is above
125°C to avoid interfering with normal operation. Thus,
it follows that prolonged or repetitive operation under a
condition in which the thermal shutdown activates neces-
sarily means that the internal components are subjected
to temperatures above the 125°C rating for prolonged
or repetitive intervals, which may damage or impair the
reliability of the device.
Finally, be aware that at high ambient temperatures the
internal Schottky diode will have significant leakage current
increasing the quiescent current of the LTM8025.
8025fc
For more information www.linear.com/LTM8025
15
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DC1379B | 制造商:Linear Technology 功能描述:BOARD EVAL LTM8025 制造商:Linear Technology 功能描述:EVAL BOARD, LTM8025 BUCK REGULATOR, Silicon Manufacturer:Linear Technology, Silicon Core Number:LTM8025, Kit Application Type:Power Management - Voltage Regulator, Application Sub Type:Synchronous Buck Regulator , RoHS Compliant: NA |
| DC1381B01XC_D4X WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| DC1383A-A | 功能描述:BOARD DELTA SIGMA ADC LTC2451 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:QuikEval™ 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| DC1384A-A | 功能描述:BOARD DELTA SIGMA ADC LTC2452 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:QuikEval™ 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| DC1385A | 功能描述:BOARD EVAL LTM4614 RoHS:否 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:µModule® 标准包装:1 系列:- 主要目的:DC/DC，步降 输出及类型:1，非隔离 功率 - 输出:- 输出电压:3.3V 电流 - 输出:3A 输入电压:4.5 V ~ 28 V 稳压器拓扑结构:降压 频率 - 开关:250kHz 板类型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名称:497-12113STEVAL-ISA094V1-ND |
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