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DC/DC 切換穩壓器
DC/DC 轉換器

LM5015

現行

4.25-75V 單體雙開關順向 DC-DC 穩壓器

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產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同，但針腳輸出與所比較的裝置不同。
LM5180 現行 具有 100-V、1.5-A 整合式 MOSFET 的 65-VIN 無光耦返馳式轉換器 PSR flyback topology eliminates opto coupler.

LM5015

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 75 Vin (min) (V) 4.25 Vout (max) (V) 37 Vout (min) (V) 1.26 Features Enable, Frequency synchronization Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00011 Duty cycle (max) (%) 50
Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 75 Vin (min) (V) 4.25 Vout (max) (V) 37 Vout (min) (V) 1.26 Features Enable, Frequency synchronization Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00011 Duty cycle (max) (%) 50
HTSSOP (PWP) 14 32 mm² (5 mm × 6.4 mm)
  • 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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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 LM5015 High Voltage Monolithic Two-Switch Forward DC-DC Regulator datasheet (Rev. C) 2013/3/29
選擇指南 Power Management Guide 2018 (Rev. R) 2018/6/25
應用說明 Improving the Performance of Traditional Flyback-Topology With Two-Switch –Appro 2014/7/22

設計與開發

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開發板

LM5015ISOEVAL — 高電壓單體雙開關順向隔離式 DC-DC 轉換器評估板

High Voltage Monolithic Two-Switch Forward Isolated DC-DC Converter Evaluation Board
使用指南: PDF
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開發板

LM5015NISOEVAL — 高電壓單體雙開關順向 DC-DC 轉換器評估板

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. (...)

使用指南: PDF
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計算工具

FLYBUCK-FLYBACK-DESIGN-CALC — Flybuck / Flyback Calculator

此工具協助電源供應工程師根據規格選擇正確的隔離式 DC-DC 拓撲結構。根據選擇的拓撲結構，計算機還會推薦適合設計的 IC。

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計算工具

LM5015ISOLATED-CALC — LM5015 隔離式快速入門設計試算表

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計算工具

LM5015NON-ISOLATED-CALC — LM5015 非隔離式快速入門設計試算表

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (PWP) 14 Ultra Librarian
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