参数资料
型号: LM2735XMY/NOPB
厂商: National Semiconductor
文件页数: 18/58页
文件大小: 0K
描述: IC REG BST SEPIC ADJ 2.1A 8EMSOP
标准包装: 1
类型: 升压(升压),Sepic
输出类型: 可调式
输出数: 1
输出电压: 3 V ~ 24 V
输入电压: 2.7 V ~ 5.5 V
PWM 型: 电流模式
频率 - 开关: 1.6MHz
电流 - 输出: 2.1A
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)裸露焊盘
包装: 标准包装
供应商设备封装: 8-MSOP-EP
产品目录页面: 1299 (CN2011-ZH PDF)
配用: LM2735SD3.3EVAL-ND - BOARD EVALUATION FOR LM2735
其它名称: LM2735XMYDKR
SNVS485F – JUNE 2007 – REVISED APRIL 2013
?
PCB variables (copper weight, thermal via’s, layers component placement).
It would be wrong to assume that the top case temperature is the proper temperature when calculating R θ JC
value. The R θ JC value represents the thermal impedance of all six sides of a package, not just the top side. This
document will refer to a thermal impedance called R ψ JC . R ψ JC represents a thermal impedance associated with
just the top case temperature. This will allow one to calculate the junction temperature with a thermal sensor
connected to the top case.
LM2735 Thermal Models
Heat is dissipated from the LM2735 and other devices. The external loss elements include the Schottky diode,
inductor, and loads. All loss elements will mutually increase the heat on the PCB, and therefore increase each
other’s temperatures.
L 1
I L t ( )
D 1
V OUT ( t )
V IN
Q 1
C 1
Figure 28. Thermal Schematic
18
Product Folder Links: LM2735
Copyright ? 2007–2013, Texas Instruments Incorporated
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相关代理商/技术参数
参数描述
LM2735XMYX 制造商:NSC 制造商全称:National Semiconductor 功能描述:520kHz/1.6MHz - Space-Efficient Boost and SEPIC DC-DC Regulator
LM2735XMYX/NOPB 功能描述:直流/直流开关调节器 RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5
LM2735XQMF 制造商:Texas Instruments 功能描述:DC DC BOOST REG, 1.6MHZ, SOT23-5 制造商:Texas Instruments 功能描述:DC DC BOOST REG, 1.6MHZ, SOT23-5; Primary Input Voltage:5.5V; No. of Outputs:1; Output Voltage:24V; Output Current:3A; Voltage Regulator Case Style:SOT-23; No. of Pins:5; Operating Temperature Min:-40C; Operating Temperature ;RoHS Compliant: Yes
LM2735XQMF/MESN 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:
LM2735XQMF/NOPB 功能描述:直流/直流开关调节器 RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5