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LM5015

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4.25-75V、单片双开关正向直流/直流稳压器

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LM5180 正在供货 具有 100V、1.5A 集成式 MOSFET 的 65V 输入电压非光电反激式转换器

PSR flyback topology eliminates opto coupler.

LM5015

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产品详情

Vin (min) (V) 4.25 Vin (max) (V) 75 Vout (min) (V) 1.26 Vout (max) (V) 37 Iout (max) (A) 3 Iq (typ) (mA) 0.11 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 750 Features Enable, Frequency synchronization Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 50 Type Converter
Vin (min) (V) 4.25 Vin (max) (V) 75 Vout (min) (V) 1.26 Vout (max) (V) 37 Iout (max) (A) 3 Iq (typ) (mA) 0.11 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 750 Features Enable, Frequency synchronization Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 50 Type Converter
HTSSOP (PWP) 14 32 mm² 5 x 6.4
  • Dual Integrated 75V N-Channel MOSFETs
  • Ultra-Wide Input Voltage Range: 4.25V to 75V
  • Integrated High Voltage Bias Regulator
  • Adjustable Output Voltage
  • 1.5% Feedback Reference Accuracy
  • Current Mode Control with Selectable Compensation
  • Wide Bandwidth Error Amplifier
  • Integrated Current Sensing and Limiting
  • 50% Maximum Duty Cycle Limit
  • Single Resistor Oscillator Programming
  • Oscillator Synchronization Capability
  • Programmable Soft-Start
  • Enable / Under-Voltage Lockout (UVLO) Pin
  • Thermal Shutdown

Package

  • HTSSOP-14EP (Exposed Pad)

All trademarks are the property of their respective owners.

  • Dual Integrated 75V N-Channel MOSFETs
  • Ultra-Wide Input Voltage Range: 4.25V to 75V
  • Integrated High Voltage Bias Regulator
  • Adjustable Output Voltage
  • 1.5% Feedback Reference Accuracy
  • Current Mode Control with Selectable Compensation
  • Wide Bandwidth Error Amplifier
  • Integrated Current Sensing and Limiting
  • 50% Maximum Duty Cycle Limit
  • Single Resistor Oscillator Programming
  • Oscillator Synchronization Capability
  • Programmable Soft-Start
  • Enable / Under-Voltage Lockout (UVLO) Pin
  • Thermal Shutdown

Package

  • HTSSOP-14EP (Exposed Pad)

All trademarks are the property of their respective owners.

The LM5015 high voltage switch mode regulator features all the functions necessary to implement efficient high voltage Two-Switch Forward and Two-Switch Flyback regulators, using a minimum of external components. This easy to use regulator integrates high side and low side 75 Volt N-Channel MOSFETs with a minimum 1 Amp peak current limit. The voltage across the MOSFETs employed in the two-switch topology is clamped to the input voltage, allowing the input voltage range to approach the rating of the MOSFETs. The regulator control method is based on current mode control providing inherent ease of loop compensation and line feed-forward for superior rejection of input transients.

The operating frequency is set with a single resistor and is programmable up to 750 kHz. The oscillator can also be synchronized to an external clock. Additional protection features include cycle-by-cycle current limiting, thermal shutdown, under-voltage lockout and remote shutdown capability. The device is available in the HTSSOP-14EP package featuring an exposed die attach pad to enhance thermal dissipation.

The LM5015 high voltage switch mode regulator features all the functions necessary to implement efficient high voltage Two-Switch Forward and Two-Switch Flyback regulators, using a minimum of external components. This easy to use regulator integrates high side and low side 75 Volt N-Channel MOSFETs with a minimum 1 Amp peak current limit. The voltage across the MOSFETs employed in the two-switch topology is clamped to the input voltage, allowing the input voltage range to approach the rating of the MOSFETs. The regulator control method is based on current mode control providing inherent ease of loop compensation and line feed-forward for superior rejection of input transients.

The operating frequency is set with a single resistor and is programmable up to 750 kHz. The oscillator can also be synchronized to an external clock. Additional protection features include cycle-by-cycle current limiting, thermal shutdown, under-voltage lockout and remote shutdown capability. The device is available in the HTSSOP-14EP package featuring an exposed die attach pad to enhance thermal dissipation.
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类型 项目标题 下载最新的英语版本 日期
* 数据表 LM5015 High Voltage Monolithic Two-Switch Forward DC-DC Regulator 数据表 (Rev. C) 2013年 3月 29日
技术文章 Minimize the impact of the MLCC shortage on your power application 2019年 3月 29日
选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日
选择指南 电源管理指南 2018 (Rev. R) 2018年 6月 25日
更多文献资料 Improving the Performance of Traditional Flyback-Topology With Two-Switch –Appro 2014年 7月 22日
EVM 用户指南 LM5015 Isolated Two-Switch DC-DC Regulator Evaluation Board (Rev. A) 2013年 4月 30日
EVM 用户指南 LM5015 Non-Isolated Two-Switch DC-DC Regulator Evaluation Board (Rev. A) 2013年 4月 30日
更多文献资料 LM5015 Isolated Quickstart Design Spreadsheet 2012年 1月 26日
更多文献资料 LM5015 Non Isolated Quickstart Design Spreadsheet 2012年 1月 26日

设计和开发

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评估板

LM5015ISOEVAL — 高电压单片双开关正向隔离式 DC-DC 转换器评估板

High Voltage Monolithic Two-Switch Forward Isolated DC-DC Converter Evaluation Board
用户指南: PDF
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评估板

LM5015NISOEVAL — 高电压单片双开关正向 DC-DC 转换器评估板

The LM5015 Non-Isolated DC-DC Regulator evaluation board provides a low cost and fully functional DC-DC regulator without employing any discrete power MOSFET. The evaluation board can be configured as either a Non-Isolated Two-Switch Forward DC-DC Regulator, or a Two-Switch Flyback DC-DC Regulator. (...)

用户指南: PDF
TI.com 上无现货
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FLYBUCK-FLYBACK-DESIGN-CALC — Fly-Buck 和反激式拓扑选择器

该工具可帮助电源工程师基于规格选择正确的隔离式直流-直流拓扑。根据所选择的拓扑，计算器还会针对设计建议正确的 IC。
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LM5015ISOLATED-CALC — LM5015 隔离快速入门设计电子表格

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LM5015NON-ISOLATED-CALC — LM5015 非隔离快速入门设计电子表格

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  • MSL 等级/回流焊峰值温度
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