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| 型号： | LMZ14203EXTTZE/NOPB |
| 厂商： | National Semiconductor |
| 文件页数： | 1/26页 |
| 文件大小： | 0K |
| 描述： | IC BUCK SYNC ADJ 3A TO-PMOD-7 |
| 产品培训模块： | SIMPLE SWITCHER Power Modules |
| 视频文件： | Power Design Invitational - Another Geek Moment |
| 标准包装： | 45 |
| 系列： | SIMPLE SWITCHER® |
| 类型： | 非隔离（POL） |
| 输出数： | 1 |
| 电压 - 输入（最小）： | 6V |
| 电压 - 输入（最大）： | 42V |
| Voltage - Output 1： | 0.8 ~ 6 V |
| 电流 - 输出（最大）： | 3A |
| 电源（瓦） - 制造商系列： | 18W |
| 特点： | 带有 UVLO |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-PMOD-7，电源模块 |
| 尺寸/尺寸： | 0.40" L x 0.54" W x 0.18" H（10.2mm x 13.8mm x 4.6mm） |
| 包装： | 管件 |
| 工作温度： | -55°C ~ 125°C |
| 效率： | 90% |
| 电源（瓦特）- 最大： | 18W |
LMZ14203EXT
www.ti.com
SNVS666F – JUNE 2010 – REVISED OCTOBER 2013
LMZ14203EXT 3A SIMPLE SWITCHER? Power Module with 42V Maximum Input Voltage
for Military and Rugged Applications
Check for Samples: LMZ14203EXT
FEATURES
? – 55°C to 125°C Junction Temperature Range
1
2
? Integrated Shielded Inductor
DESCRIPTION
The LMZ14203EXT SIMPLE SWITCHER power
module is an easy-to-use step-down DC-DC solution
?
?
?
?
?
?
?
?
Simple PCB Layout
Flexible Startup Sequencing Using External
Soft-Start and Precision Enable
Protection Against Inrush Currents and Faults
such as Input UVLO and Output Short Circuit
Single Exposed Pad and Standard Pinout for
Easy Mounting and Manufacturing
Fast Transient Response for Powering FPGAs
and ASICs
Low output Voltage Ripple
Pin-to-pin Compatible Family:
– LMZ14203EXT/2EXT/1EXT
(42V Max 3A, 2A, 1A)
– LMZ12003/2/1 (20V Max 3A, 2A, 1A)
– LMZ14203/2/1 (42V Max 3A, 2A, 1A)
Fully Enabled for Webench? Power Designer
capable of driving up to 3A load with exceptional
power conversion efficiency, line and load regulation,
and output accuracy. The LMZ14203EXT is available
in an innovative package that enhances thermal
performance and allows for hand or machine
soldering.
The LMZ14203EXT can accept an input voltage rail
between 6V and 42V and deliver an adjustable and
highly accurate output voltage as low as 0.8V. The
LMZ14203EXT only requires three external resistors
and four external capacitors to complete the power
solution. The LMZ14203EXT is a reliable and robust
design with the following protection features: thermal
shutdown, input under-voltage lockout, output over-
voltage protection, short-circuit protection, output
current limit, and allows startup into a pre-biased
output. A single resistor adjusts the switching
frequency up to 1 MHz.
ELECTRICAL SPECIFICATIONS
APPLICATIONS
?
18W Maximum Total Output Power
?
?
?
Point of Load Conversions from 12V and 24V
Input Rail
Time Critical Projects
Space Constrained / High Thermal
Requirement Applications
?
?
?
?
Up to 3A Output Current
Input Voltage Range 6V to 42V
Output Voltage Range 0.8V to 6V
Efficiency up to 90%
?
Negative Output Voltage Applications (See AN-
2027 SNVA425 )
PERFORMANCE BENEFITS
? Low Radiated Emissions / High Radiated
Immunity
?
Passes vibration Standard MIL-STD-883
Method 2007.2 Condition A JESD22–B103B
Condition 1
?
Passes Drop Standard MIL-STD-883 Method
2002.3 Condition B JESD22–B110 Condition B
Figure 1. Easy To Use PFM 7 Pin Package
10.16 x 13.77 x 4.57 mm (0.4 x 0.542 x 0.18 in)
θ JA = 20°C/W, θ JC = 1.9°C/W
RoHS Compliant
Peak Reflow CaseTemp = 245°C
1
2
Power Module SMT Guidelines
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright ? 2010–2013, Texas Instruments Incorporated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LMZ14203EXTTZNOPB | 制造商:National Semiconductor 功能描述:Simple Switcher Power Module 7-Pin TO-PMOD T/R |
| LMZ14203EXTTZX/NOPB | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LMZ14203H | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Evaluation Board modules for high output voltage are easy-to-use DC-DC |
| LMZ14203H_1106 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:3A SIMPLE SWITCHER? Power Module for High Output Voltage |
| LMZ14203HEVAL/NOPB | 功能描述:电源管理IC开发工具 LMZ14203H EVAL BOARD RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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