LM60440

現行

採用增強型 EMI QFN 封裝,具有可潤濕側翼和外部墊片的 36-V、4-A 同步轉換器

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 4 Vin (min) (V) 3.8 Vin (max) (V) 36 Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 1000 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Synchronous Rectification, UVLO adjustable, Wettable flanks package Control mode current mode Vout (min) (V) 1 Vout (max) (V) 24 Iq (typ) (µA) 24 Duty cycle (max) (%) 98
Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 4 Vin (min) (V) 3.8 Vin (max) (V) 36 Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 1000 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Synchronous Rectification, UVLO adjustable, Wettable flanks package Control mode current mode Vout (min) (V) 1 Vout (max) (V) 24 Iq (typ) (µA) 24 Duty cycle (max) (%) 98
WQFN-FCRLF (RPK) 13 6 mm² 3 x 2
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Low EMI and switching noise
    • Meets CISPR22 class 5 standard
    • Enhanced QFN package minimizes parasitic inductance and switch node ringing
  • Configured for rugged industrial applications
    • Standard QFN footprint: single large thermal pad and all pins accessible from perimeter
    • Pin compatible variants:
    • Junction temperature range –40°C to +150°C
    • Frequency: 400 kHz, 1 MHz
    • Output voltage range: 1 V to 24 V
  • High efficiency power conversion at all loads
    • Peak efficiency > 95%
    • 90% PFM efficiency at 10-mA, 12 VIN, 5 VOUT
    • Low operating quiescent current of 25 µA
  • Create a custom design using the LM60440 with the WEBENCH® Power Designer
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Low EMI and switching noise
    • Meets CISPR22 class 5 standard
    • Enhanced QFN package minimizes parasitic inductance and switch node ringing
  • Configured for rugged industrial applications
    • Standard QFN footprint: single large thermal pad and all pins accessible from perimeter
    • Pin compatible variants:
    • Junction temperature range –40°C to +150°C
    • Frequency: 400 kHz, 1 MHz
    • Output voltage range: 1 V to 24 V
  • High efficiency power conversion at all loads
    • Peak efficiency > 95%
    • 90% PFM efficiency at 10-mA, 12 VIN, 5 VOUT
    • Low operating quiescent current of 25 µA
  • Create a custom design using the LM60440 with the WEBENCH® Power Designer

The LM604x0 regulator is an easy-to-use, synchronous, step-down DC/DC converter that delivers best-in-class efficiency for rugged industrial applications. The LM60430 drives up to 3-A of load current, and the LM60440 is industry’s smallest 4A step-down converter.

The LM604x0 is available in an ultra-miniature WQFN package with wettable flanks and a standard QFN pin-out with a thermal pad to enhance thermal performance. This enhanced QFN package features extremely small parasitic inductance and resistance, enabling very high efficiency while minimizing switch node ringing and dramatically reducing EMI.

The LM604x0 uses peak-current-mode control to automatically fold back frequency at light load to ensure exceptional efficiency across the entire load range. The low power dissipation paired with a thermally optimized QFN package enables a power dense solution size. In addition the device requires few external components and has a pinout designed for simple PCB layout. The small solution size and feature set of the LM604x0 are designed to simplify implementation for a wide range of end equipment.

This device is also available in an AEC-Q100-qualified version.

The LM604x0 regulator is an easy-to-use, synchronous, step-down DC/DC converter that delivers best-in-class efficiency for rugged industrial applications. The LM60430 drives up to 3-A of load current, and the LM60440 is industry’s smallest 4A step-down converter.

The LM604x0 is available in an ultra-miniature WQFN package with wettable flanks and a standard QFN pin-out with a thermal pad to enhance thermal performance. This enhanced QFN package features extremely small parasitic inductance and resistance, enabling very high efficiency while minimizing switch node ringing and dramatically reducing EMI.

The LM604x0 uses peak-current-mode control to automatically fold back frequency at light load to ensure exceptional efficiency across the entire load range. The low power dissipation paired with a thermally optimized QFN package enables a power dense solution size. In addition the device requires few external components and has a pinout designed for simple PCB layout. The small solution size and feature set of the LM604x0 are designed to simplify implementation for a wide range of end equipment.

This device is also available in an AEC-Q100-qualified version.

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技術文件

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類型 標題 日期
* Data sheet LM604x0 3.8-V to 36-V, 3-A, and 4-A Ultra-Small Synchronous Step-Down Converter datasheet (Rev. A) PDF | HTML 2020年 6月 18日
Application note Enhanced HotRod QFN Package: Industry-Best Size with Low EMI (Rev. A) PDF | HTML 2021年 8月 17日
Functional safety information LM604x0 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2020年 10月 1日
EVM User's guide LM60440AQEVM User's Guide 2019年 10月 8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

LM60440AQEVM — 36-V、4-A、2x3-mm 同步降壓轉換器評估模組

The LM60440AQEVM evaluation module (EVM) helps designers evaluate the operation and performance of the LM60440-Q1 wide-input buck regulator. The LM60440-Q1 is an easy-to-use synchronous step-down DC/DC converter capable of driving up to 4 A of load current from an input voltage of up to 36 V. The (...)
使用指南: PDF
TI.com 無法提供
模擬型號

LM60440A-Q1 PSpice Unencrypted Transient Model

SNVMBY4.ZIP (158 KB) - PSpice Model
模擬型號

LM60440D PSpice Unencrypted Transient Model

SNVMBY6.ZIP (177 KB) - PSpice Model
計算工具

SNVR483 LM60440-Q1 Quick Start Calculator

支援產品和硬體

支援產品和硬體

產品
AC/DC 和 DC/DC 轉換器 (整合式 FET)
LM60440 採用增強型 EMI QFN 封裝,具有可潤濕側翼和外部墊片的 36-V、4-A 同步轉換器 LM60440-Q1 採用增強型 EMI QFN 封裝,具有可潤濕側翼的車用 36-V、4-A 同步轉換器
封裝 針腳 CAD 符號、佔位空間與 3D 模型
WQFN-FCRLF (RPK) 13 Ultra Librarian

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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
  • 進行中持續性的可靠性監測
內含資訊:
  • 晶圓廠位置
  • 組裝地點

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