首頁 電源管理 DC/DC switching regulators DC/DC controllers

LM3017

現行

具實際關機功能的高效低側控制器

產品詳細資料

Rating Catalog Topology Boost, Flyback, SEPIC Vin (max) (V) 18 Vin (min) (V) 5 Vout (max) (V) 20 Vout (min) (V) 6 Control mode current mode Features Enable, Load Disconnect, Nonsynchronous rectification Duty cycle (max) (%) 85 Iq (typ) (A) 0.0014 Operating temperature range (°C) -40 to 125
Rating Catalog Topology Boost, Flyback, SEPIC Vin (max) (V) 18 Vin (min) (V) 5 Vout (max) (V) 20 Vout (min) (V) 6 Control mode current mode Features Enable, Load Disconnect, Nonsynchronous rectification Duty cycle (max) (%) 85 Iq (typ) (A) 0.0014 Operating temperature range (°C) -40 to 125
WQFN (NKL) 10 6.48 mm² 2.7 x 2.4
  • Fully Compliant to Thunderbolt™ Technology Specifications
  • True Shutdown for Short-Circuit Protection
  • Input Side Current Limit
  • Single Enable Pin With Three Modes of Operation: Boost, Pass-Through, or Shutdown
  • Built-in Charge Pump for High-Side NFET Disconnect Switch
  • 1-A Push-Pull Driver for Low-Side NFET
  • Peak Current Mode Control
  • Simple Slope Compensation
  • Protection Features: Thermal Shutdown, Cycle-by-Cycle Current Limit, Short-Circuit Protection, Output Overvoltage Protection, and Latch-Off
  • Internal Soft Start
  • Input Voltage Range: 5 V to 18 V
  • 600-kHz Fixed Frequency Operation
  • ±1% Reference Voltage Accuracy Over Temperature
  • Low Shutdown Current (< 1 µA), 40 nA Typical
  • 2.4 mm × 2.7 mm × 0.8 mm, 10-Pin WQFN Package
  • Fully Compliant to Thunderbolt™ Technology Specifications
  • True Shutdown for Short-Circuit Protection
  • Input Side Current Limit
  • Single Enable Pin With Three Modes of Operation: Boost, Pass-Through, or Shutdown
  • Built-in Charge Pump for High-Side NFET Disconnect Switch
  • 1-A Push-Pull Driver for Low-Side NFET
  • Peak Current Mode Control
  • Simple Slope Compensation
  • Protection Features: Thermal Shutdown, Cycle-by-Cycle Current Limit, Short-Circuit Protection, Output Overvoltage Protection, and Latch-Off
  • Internal Soft Start
  • Input Voltage Range: 5 V to 18 V
  • 600-kHz Fixed Frequency Operation
  • ±1% Reference Voltage Accuracy Over Temperature
  • Low Shutdown Current (< 1 µA), 40 nA Typical
  • 2.4 mm × 2.7 mm × 0.8 mm, 10-Pin WQFN Package

The LM3017 device is a versatile low-side NFET controller incorporating true shutdown and input side current limiting. The LM3017 is designed for simple implementation of boost conversions in Thunderbolt™ Technology. The LM3017 can also be configured for flyback or SEPIC designs. The input voltage range of 5 V to 18 V accommodates a two- or three-cell lithium ion battery or a 12-V rail. The enable pin accepts a single input to drive three different modes of operation: boost, pass-through, or shutdown mode. The LM3017 draws very low current in shutdown mode, typically 40 nA from the input supply.

The LM3017 provides an adjustable output to drive the Power Load Switch or MUX for the host Thunderbolt™ port. The ability to drive an external high-side NMOS provides for true isolation of the load from the input. Current limiting on the input ensures that inrush and short-circuit currents are always under control. The LM3017 incorporates built-in thermal shutdown, cycle-by-cycle current limit, short-circuit protection, output overvoltage protection, and soft start. It is available in a 10-pin WQFN package.

The LM3017 device is a versatile low-side NFET controller incorporating true shutdown and input side current limiting. The LM3017 is designed for simple implementation of boost conversions in Thunderbolt™ Technology. The LM3017 can also be configured for flyback or SEPIC designs. The input voltage range of 5 V to 18 V accommodates a two- or three-cell lithium ion battery or a 12-V rail. The enable pin accepts a single input to drive three different modes of operation: boost, pass-through, or shutdown mode. The LM3017 draws very low current in shutdown mode, typically 40 nA from the input supply.

The LM3017 provides an adjustable output to drive the Power Load Switch or MUX for the host Thunderbolt™ port. The ability to drive an external high-side NMOS provides for true isolation of the load from the input. Current limiting on the input ensures that inrush and short-circuit currents are always under control. The LM3017 incorporates built-in thermal shutdown, cycle-by-cycle current limit, short-circuit protection, output overvoltage protection, and soft start. It is available in a 10-pin WQFN package.

下載 觀看有字幕稿的影片 影片

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件,然後再試一次。
檢視所有 2
重要文件 類型 標題 格式選項 日期
* Data sheet LM3017 High Efficiency Low-Side Controller With True Shutdown datasheet (Rev. D) PDF | HTML 2016年 9月 30日
Application note Automated Frequency Response Analyzer 2013年 10月 9日

設計與開發

如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

LM3017EVM — 具有真正關機功能的 LM3017 高效率低壓側控制器評估模組

The LM3017EVM evaluation module (EVM) provides the design engineer with a fully functional asynchronous boost converter to evaluate the Texas Instruments LM3017LE boost controller IC. The EVM provides 15V output at up to 1A current from an 8V to 12V input. This EVM demonstrates the flexibility of (...)

使用指南: PDF
TI.com 無法提供
模擬型號

LM3017 PSpice Transient Model

SNOM459.ZIP (76 KB) - PSpice Model
模擬型號

LM3017 Unencrypted PSpice Transient Model

SNOM573.ZIP (4 KB) - PSpice Model
計算工具

FLYBUCK-FLYBACK-DESIGN-CALC Flybuck / Flyback Calculator

This tool helps a power supply engineer to select the right isolated DC-DC topology based on the specifications. Depending on the topology chosen, the calculator also recommends the right IC for the design.

支援產品和硬體

支援產品和硬體

封裝 針腳 CAD 符號、佔位空間與 3D 模型
WQFN (NKL) 10 Ultra Librarian

訂購與品質

內含資訊:
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中的可靠性監測
內含資訊:
  • 晶圓廠位置
  • 組裝地點

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

內容係由 TI 和社群貢獻者依「現狀」提供,且不構成 TI 規範。檢視使用條款

若有關於品質、封裝或訂購 TI 產品的問題,請參閱 TI 支援。​​​​​​​​​​​​​​

影片