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参数资料
| 型号： | LM3102MH/NOPB |
| 厂商： | National Semiconductor |
| 文件页数： | 1/24页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 20TSSOP |
| 产品培训模块： | SIMPLE SWITCHER® Regulators |
| 标准包装： | 73 |
| 系列： | PowerWise®, SIMPLE SWITCHER® |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 7 V |
| 输入电压： | 4.5 V ~ 42 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 2.5A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽）裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 20-TSSOP-EP |
| 产品目录页面： | 1307 (CN2011-ZH PDF) |
| 配用： | LM3102EVAL-ND - BOARD EVALUATION LM3102 |
| 其它名称： | *LM3102MH *LM3102MH/NOPB LM3102MH |
SNVS515G – SEPTEMBER 2007 – REVISED JANUARY 2012
LM3102/LM3102Q SIMPLE SWITCHER Synchronous 1MHz 2.5A
Step-Down Voltage Regulator
Check for Samples: LM3102
1
FEATURES
KEY SPECIFICATIONS
2
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LM3102Q is an Automotive Grade Product that
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Input Voltage Range 4.5–42 V
is AEC-Q100 Grade 1 Qualified (-40°C to
+125°C Operating Junction Temperature)
?
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Output Current 2.5A A
Reference 0.8V, ±1.5%
?
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Low Component Count and Small Solution
Size
Stable with Ceramic and Other Low ESR
Capacitors
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Integrated Dual N-Channel Main and
Synchronous MOSFETs
Thermally Enhanced TSSOP-20 Package
?
?
?
?
?
?
?
?
?
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No Loop Compensation Required
High Efficiency at a Light Load by DCM
Operation
Pre-bias Startup
Ultra-fast Transient Response
Programmable Soft-start
Programmable Switching Frequency up to 1
MHz
Valley Current Limit
Output Over-voltage Protection
Precision Internal Reference for an Adjustable
Output Voltage Down to 0.8V
Thermal Shutdown
DESCRIPTION
The LM3102 Synchronously Rectified Buck Converter
features all required functions to implement a highly
efficient and cost effective buck regulator. It is
capable of supplying 2.5A to loads with an output
voltage as low as 0.8V. Dual N-Channel synchronous
MOSFET switches allow a low component count, thus
reducing complexity and minimizing board size.
Different from most other COT regulators, the
LM3102 does not rely on output capacitor ESR for
stability, and is designed to work exceptionally well
with ceramic and other very low ESR output
capacitors. It requires no loop compensation, results
in a fast load transient response and simple circuit
implementation. The operating frequency remains
nearly constant with line variations due to the inverse
APPLICATIONS
? 5VDC, 12VDC, 24VDC, 12VAC, and 24VAC
Systems
relationship between the input voltage and the on-
time. The operating frequency can be externally
programmed up to 1 MHz. Protection features include
V CC under-voltage lock-out, output over-voltage
?
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Embedded Systems
Industrial Control
Automotive Telematics and Body Electronics
Point of Load Regulators
Storage Systems
Broadband Infrastructure
Direct Conversion from 2/3/4 Cell Lithium
protection, thermal shutdown, and gate drive under-
voltage lock-out. The LM3102 is available in the
thermally enhanced TSSOP-20 package as well as a
DSBGA low profile chip-scale package with reduced
output current.
Batteries Systems
1
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.
2
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 ? 2007–2012, Texas Instruments Incorporated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM3102MHX | 制造商:Texas Instruments 功能描述:Conv DC-DC Single Step Down 4.5V to 42V 20-Pin TSSOP EP T/R |
| LM3102MHX/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 |
| LM3102QMH/NOPB | 功能描述:直流/直流开关调节器 SIMPLE SWITCHER Sync 1MHz 2.5A SD Vtg Reg 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 |
| LM3102QMHX/NOPB | 功能描述:直流/直流开关调节器 SIMPLE SWITCHER Sync 1MHz 2.5A SD Vtg Reg 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 |
| LM3102TL-1/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 |
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