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LMR62014

正在供货

采用 SOT-23 封装的 SIMPLE SWITCHER® 2.7V 至 14V、1.4A 升压稳压器

可提供此产品的更新版本

open-in-new 比较替代产品
功能与比较器件相同且具有相同引脚。
TLV61047 正在供货 采用 SOT23-5 DDC 封装的 20V 输入、28V 输出、2.2A 非同步升压转换器 Wider input voltage and higher efficiency.

产品详情

Rating Catalog Topology Boost Vin (max) (V) 14 Vin (min) (V) 2.7 Vout (max) (V) 20 Vout (min) (V) 3 Switch current limit (typ) (A) 2 Features Enable, Nonsynchronous rectification Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.002 Duty cycle (max) (%) 93
Rating Catalog Topology Boost Vin (max) (V) 14 Vin (min) (V) 2.7 Vout (max) (V) 20 Vout (min) (V) 3 Switch current limit (typ) (A) 2 Features Enable, Nonsynchronous rectification Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.002 Duty cycle (max) (%) 93
SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm)
  • Input Voltage Range of 2.7V to 14V
  • Output Voltage up to 20V
  • Switch Current up to 1.4A
  • 1.6 MHz Switching Frequency
  • Low Shutdown Iq, <1 µA
  • Cycle-by-Cycle Current Limiting
  • Internally Compensated
  • 5-Pin SOT-23 Packaging (2.92 x 2.84 x 1.08mm)
  • Fully Enabled for WEBENCH Power Designer

Performance Benefits

  • Extremely Easy to Use
  • Tiny Overall Solution Reduces System Cost

SIMPLE SWITCHER is a trademark of Texas Instruments. WEBENCH is a trademark of Texas Instruments. All trademarks are the property of their respective owners.

  • Input Voltage Range of 2.7V to 14V
  • Output Voltage up to 20V
  • Switch Current up to 1.4A
  • 1.6 MHz Switching Frequency
  • Low Shutdown Iq, <1 µA
  • Cycle-by-Cycle Current Limiting
  • Internally Compensated
  • 5-Pin SOT-23 Packaging (2.92 x 2.84 x 1.08mm)
  • Fully Enabled for WEBENCH Power Designer

Performance Benefits

  • Extremely Easy to Use
  • Tiny Overall Solution Reduces System Cost

SIMPLE SWITCHER is a trademark of Texas Instruments. WEBENCH is a trademark of Texas Instruments. All trademarks are the property of their respective owners.

The LMR62014 switching regulator is a current-mode boost converter operating at fixed frequency of
1.6 MHz.

The use of SOT-23 package, made possible by the minimal power loss of the internal 1.4A switch, and use of small inductors and capacitors result in the industry's highest power density. The LMR62014 is capable of greater than 90% duty cycle, making it ideal for boosting to voltages up to 20V.

These parts have a logic-level shutdown pin that can be used to reduce quiescent current and extend battery life.

Protection is provided through cycle-by-cycle current limiting and thermal shutdown. Internal compensation simplifies design and reduces component count.

The LMR62014 switching regulator is a current-mode boost converter operating at fixed frequency of
1.6 MHz.

The use of SOT-23 package, made possible by the minimal power loss of the internal 1.4A switch, and use of small inductors and capacitors result in the industry's highest power density. The LMR62014 is capable of greater than 90% duty cycle, making it ideal for boosting to voltages up to 20V.

These parts have a logic-level shutdown pin that can be used to reduce quiescent current and extend battery life.

Protection is provided through cycle-by-cycle current limiting and thermal shutdown. Internal compensation simplifies design and reduces component count.

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技术文档

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 LMR62014 SIMPLE SWITCHER ® 20Vout, 1.4A Step-Up Voltage Regulator in SOT-23 数据表 (Rev. B) 2013-4-4
应用手册 半导体和 IC 封装热指标 (Rev. D) PDF | HTML 英语版 (Rev.D) PDF | HTML 2024-4-24
应用手册 升压转换器功率级的基本计算 (Rev. D) PDF | HTML 英语版 (Rev.D) PDF | HTML 2022-11-11
选择指南 电源管理指南 2018 2018-7-31
应用手册 Inverted SEPIC Made SIMPLE 2015-7-31
应用手册 Softstart Using Constant Current Constant Voltage Approach 2015-7-24
应用手册 Working With Boost Converters 2015-6-15
应用手册 Design of UVLO for LM27313 (Rev. B) 2014-4-8
应用手册 AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C) 2013-4-24
应用手册 AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A) 2013-4-23
应用手册 AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) 2013-4-23
应用手册 AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C) 2013-4-23
应用手册 AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C) 2013-4-23
应用手册 AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) 2013-4-23
应用手册 AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B) 2013-4-23
应用手册 Input and Output Capacitor Selection 2005-9-19
更多文献资料 SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations 2005-7-12
应用手册 AN-643 EMI/RFI Board Design (Rev. B) 2004-5-3
应用手册 了解开关模式电源中的升压功率级 1999-3-4

设计与开发

如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。

仿真模型

LMR62014 Unencrypted PSpice Transient Model

SNVM948.ZIP (2 KB) - PSpice 模型
支持的产品和硬件
仿真模型

LMR62014 Unencrypted PSpice Transient Model Package (Rev. A)

SNVM673A.ZIP (44 KB) - PSpice 模型
支持的产品和硬件
参考设计

PMP20327 — 可变输出 2 节电池 200W 加热器元件功率级降压/升压参考设计

PMP20327 是一款同步 4 开关降压/升压转换器,在电子烟等应用中将 LM5175 控制器用作加热器元件功率级。可使用 FB 引脚上具有 0.2V 至 3.1V 偏置电压的修整电阻器,在 20A 至 45A 电流下选择 1V 至 10V 的输出电压。在低 Vin 运行期间,该设计还使用非同步升压稳压器 LMR62014 为 LM5175 提供辅助电源。电流模式控制器本身具有 LM5175 逐脉冲电流限制。此板包括使能端、同步和电源正常状态显示功能。此设计支持从 0.1Ω 到 0.5Ω 的电阻式加热元件,从而支持 200W 的各种工作条件。
支持的产品和硬件
参考设计

PMP20410 — 可变输出单节电池 80W 加热器元件功率级降压/升压参考设计

PMP20410 是一款同步 4 开关降压/升压转换器,在电子烟等应用中将 LM5175 控制器用作加热器元件功率级。可使用 FB 引脚上具有 0.2V 至 3.1V 偏置电压的修整电阻器,在 13A 至 28A 电流下选择 1V 至 10V 的输出电压。该设计还使用非同步升压稳压器 LMR62014 为 LM5175 提供辅助电源,可实现 2.7V 输入运行。电流模式控制器本身具有 LM5175 逐脉冲电流限制。此板包括使能端、同步和电源正常状态显示功能。此设计支持从 0.1Ω 到 0.5Ω 的电阻式加热元件,以提供 80W 功率。
支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
SOT-23 (DBV) 5 Ultra Librarian

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