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LMR50410-Q1

現行
立即訂購
產品規格表

LMR50410-Q1

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Topology Buck Iout (max) (A) 1 Vin (max) (V) 36 Vin (min) (V) 4 Vout (max) (V) 28 Vout (min) (V) 1 Features Enable, Fixed Output, Forced PWM, Light-load efficiency, Over Current Protection, Overcurrent protection, Synchronous rectification Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00008 Duty cycle (max) (%) 98 TI functional safety category Functional Safety-Capable
Rating Automotive Topology Buck Iout (max) (A) 1 Vin (max) (V) 36 Vin (min) (V) 4 Vout (max) (V) 28 Vout (min) (V) 1 Features Enable, Fixed Output, Forced PWM, Light-load efficiency, Over Current Protection, Overcurrent protection, Synchronous rectification Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00008 Duty cycle (max) (%) 98 TI functional safety category Functional Safety-Capable
SOT-23 (DBV) 6 8.12 mm² (2.9 mm × 2.8 mm)
  • AEC-Q100 qualified
    • Temperature grade 1: –40°C to 125°C ambient operating temperature range
  • Functional Safety-Capable
  • Configured for rugged automotive applications
    • Input voltage range: 4 V to 36 V
    • 1-A continuous output current
    • Minimum switching-on time: 60 ns
    • 2.1-MHz fixed switching frequency
    • Junction temperature range: –40°C to 150°C
    • 98% maximum duty cycle
    • Monotonic start-up with pre-biased output
    • Internal short circuit protection with hiccup mode
    • ±1% tolerance voltage reference
    • Precision enable
  • Small solution size and ease of use
    • Integrated synchronous rectification
    • Internal compensation for ease of use
    • SOT-23-6 package
  • Pin-to-pin compatible with TPS560430-Q1
  • Various options in pin-to-pin compatible package
    • PFM and forced PWM (FPWM) options
    • Fixed 3.3-V and 5.0-V output option
  • Create a custom design using the LMR50410-Q1 with the WEBENCH Power Designer
  • AEC-Q100 qualified
    • Temperature grade 1: –40°C to 125°C ambient operating temperature range
  • Functional Safety-Capable
  • Configured for rugged automotive applications
    • Input voltage range: 4 V to 36 V
    • 1-A continuous output current
    • Minimum switching-on time: 60 ns
    • 2.1-MHz fixed switching frequency
    • Junction temperature range: –40°C to 150°C
    • 98% maximum duty cycle
    • Monotonic start-up with pre-biased output
    • Internal short circuit protection with hiccup mode
    • ±1% tolerance voltage reference
    • Precision enable
  • Small solution size and ease of use
    • Integrated synchronous rectification
    • Internal compensation for ease of use
    • SOT-23-6 package
  • Pin-to-pin compatible with TPS560430-Q1
  • Various options in pin-to-pin compatible package
    • PFM and forced PWM (FPWM) options
    • Fixed 3.3-V and 5.0-V output option
  • Create a custom design using the LMR50410-Q1 with the WEBENCH Power Designer

The LMR50410-Q1 is a wide-VIN, easy-to-use synchronous buck converter capable of driving up to 1-A load current. With a wide input range of 4 V to 36 V, the device is suitable for a wide range of automotive applications for power conditioning from an unregulated source.

The LMR50410-Q1 operates at 2.1-MHz switching frequency to support use of relatively small inductors for an optimized solution size. It has an PFM version to realize high efficiency at light load and FPWM version to achieve constant frequency, and small output voltage ripple over the full load range. Soft-start and compensation circuits are implemented internally which allows the device to be used with minimum external components.

The device has built-in protection features, such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation. The LMR50410-Q1 is available in SOT-23-6 package.

The LMR50410-Q1 is a wide-VIN, easy-to-use synchronous buck converter capable of driving up to 1-A load current. With a wide input range of 4 V to 36 V, the device is suitable for a wide range of automotive applications for power conditioning from an unregulated source.

The LMR50410-Q1 operates at 2.1-MHz switching frequency to support use of relatively small inductors for an optimized solution size. It has an PFM version to realize high efficiency at light load and FPWM version to achieve constant frequency, and small output voltage ripple over the full load range. Soft-start and compensation circuits are implemented internally which allows the device to be used with minimum external components.

The device has built-in protection features, such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation. The LMR50410-Q1 is available in SOT-23-6 package.
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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 LMR50410-Q1 SIMPLE SWITCHER® 4-V to 36-V, 1-A Buck Converter in SOT-23-6 Package datasheet (Rev. A) PDF | HTML 2020/11/13
功能安全資訊 LMR50410-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) PDF | HTML 2020/10/16
證書 LMR50410QEVM EU Declaration of Conformity (DoC) 2020/7/22

設計與開發

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開發板

LMR50410QEVM — 4-V 至 36-V、1-A 同步降壓轉換器評估模組

LMR50410QEVM 評估模組 (EVM) 是完全組裝且經過測試的電路，用於評估 LMR50410-Q1 降壓轉換器。電路板設為 3.3-V Vout。基板也具備用於環路量測的 AC 訊號注入端子。
使用指南: PDF | HTML
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模擬型號

LMR50410-Q1 PSpice Model

SLUM747.ZIP (99 KB) - PSpice 模型
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模擬型號

LMR50410Y3F-Q1 PSpice Transient Model

SLUM770.ZIP (507 KB) - PSpice 模型
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模擬型號

LMR50410Y5F-Q1 PSpice Transient Model

SLUM772.ZIP (262 KB) - PSpice 模型
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模擬型號

LMR50410YF-Q1 PSpice Unencrypted Transient Model

SLUM767.ZIP (140 KB) - PSpice 模型
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計算工具

SLURAZ6 — LMR50410-Q1 Quick Start Tool

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參考設計

PMP22992 — 採用降壓和推拉式轉換器的雙路 15-V、120-mA 隔離式偏壓電源參考設計

此隔離式電源供應器在 120 mA 下提供雙 +15-V 輸出。此電源供應器的設計主要用於對 MOSFET 型功率級加偏壓，而該功率級可爲單獨激發的同步馬達 (SSM) 產生激磁。此設計使用 LMR50410-Q1 降壓前置穩壓器與具展頻調變的 SN6505-Q1 開迴路變壓器驅動器。廣泛的輸入電壓範圍和靈活性使這款多用途設計適合需要隔離電源的廣泛應用領域。此內部參考設計是 PMP22760 的替代方案，而 PMP22760 採用 LM5180-Q1 型單晶片解決方案。
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-23 (DBV) 6 Ultra Librarian
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