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LMR36503E-Q1

現行

車用 3V 至 65V 0.3A 降壓轉換器

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產品規格表

LMR36503E-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) 0.3 Vin (max) (V) 65 Vin (min) (V) 3 Vout (max) (V) 28 Vout (min) (V) 1 Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 175 Iq (typ) (A) 0.000004 Duty cycle (max) (%) 99 TI functional safety category Functional Safety-Capable
Rating Automotive Topology Buck Iout (max) (A) 0.3 Vin (max) (V) 65 Vin (min) (V) 3 Vout (max) (V) 28 Vout (min) (V) 1 Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 175 Iq (typ) (A) 0.000004 Duty cycle (max) (%) 99 TI functional safety category Functional Safety-Capable
VQFN-HR (RPE) 9 4 mm² 2 x 2
  • AEC-Q100-qualified for automotive applications:
    • Device temperature grade 0: –40°C to +150°C, TA
  • > 70% efficiency at 5mA
    • 4µA IQ (switching) at 24VIN to 3.3VOUT (fixed output option)
  • Miniature design size and low component cost
    • 2mm × 2mm HotRod™ package with wettable flanks
    • Internal compensation
  • Designed for automotive applications:
  • Create a custom design using the LMR36503E-Q1 with the WEBENCH Power Designer
  • AEC-Q100-qualified for automotive applications:
    • Device temperature grade 0: –40°C to +150°C, TA
  • > 70% efficiency at 5mA
    • 4µA IQ (switching) at 24VIN to 3.3VOUT (fixed output option)
  • Miniature design size and low component cost
    • 2mm × 2mm HotRod™ package with wettable flanks
    • Internal compensation
  • Designed for automotive applications:
  • Create a custom design using the LMR36503E-Q1 with the WEBENCH Power Designer

The LMR36503E-Q1 is a 65V, 0.3A synchronous step-down DC/DC converter in 2mm × 2mm HotRod package. This easy-to-use converter can handle input voltage transients up to 70V, provide excellent EMI performance, and support fixed 3.3V, 5V and other adjustable output voltages.

The LMR36503E-Q1 uses peak current mode control architecture with internal compensation and maintains stable operation with minimal output capacitance. The wide input operating range of the LMR36503E-Q1 helps the device remain functional during a deep input voltage sag condition, making the device an excellent choice for automotive applications withstanding severe cold crank start impulses. The PGOOD flag in the LMR36503E-Q1 provides precise indication of the output voltage status, eliminating the requirement for an external supervisor. A seamless transition from FPWM to PFM, with an ultra-low standby quiescent current allows the LMR36503E-Q1 to support much higher system efficiency at low output loads. The MODE/SYNC pin variant helps to synchronize the LMR36503E-Q1 to an external clock. With the right resistor selection, the LMR36503E-Q1 RT pin variant can also be externally programmed to any desired switching frequency of operation. The rich feature set of the LMR36503E-Q1 is designed to simplify implementation for a wide range of automotive end equipments.

The LMR36503E-Q1 is a 65V, 0.3A synchronous step-down DC/DC converter in 2mm × 2mm HotRod package. This easy-to-use converter can handle input voltage transients up to 70V, provide excellent EMI performance, and support fixed 3.3V, 5V and other adjustable output voltages.

The LMR36503E-Q1 uses peak current mode control architecture with internal compensation and maintains stable operation with minimal output capacitance. The wide input operating range of the LMR36503E-Q1 helps the device remain functional during a deep input voltage sag condition, making the device an excellent choice for automotive applications withstanding severe cold crank start impulses. The PGOOD flag in the LMR36503E-Q1 provides precise indication of the output voltage status, eliminating the requirement for an external supervisor. A seamless transition from FPWM to PFM, with an ultra-low standby quiescent current allows the LMR36503E-Q1 to support much higher system efficiency at low output loads. The MODE/SYNC pin variant helps to synchronize the LMR36503E-Q1 to an external clock. With the right resistor selection, the LMR36503E-Q1 RT pin variant can also be externally programmed to any desired switching frequency of operation. The rich feature set of the LMR36503E-Q1 is designed to simplify implementation for a wide range of automotive end equipments.
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重要文件 類型 標題 格式選項 日期
* Data sheet LMR36503E-Q1 3V to 65V, 0.3A , Automotive, Grade 0, Synchronous Buck Converter Optimized for Size and Light Load Efficiency datasheet (Rev. A) PDF | HTML 2024年 9月 18日
Functional safety information LMR36503E-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2024年 6月 13日

設計與開發

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開發板

LMR36503MSCEEVM — LMR360503E-Q1 評估模組 

LMR36503E-Q1 是採用同步整流的 65V DC/DC、0.3A 降壓穩壓器，可在小型元件封裝中實現高轉換效率。LMR36503E-Q1 評估模組 (EVM) 可在 5.5V 至 65V 的廣泛輸入電壓範圍內運作，以 2.2MHz 的切換頻率提供最高 0.3A 負載的穩壓 5V 輸出。LMR36503MSCEEVM 可在全負載時支援高於 1.5% 的輸出電壓穩壓準確度，並可使用外部電阻分壓器進行調整。

使用指南: PDF | HTML
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模擬型號

LMR36503MSC-Q1 PSpice Unencrypted Transient Model

SNVMC16.ZIP (528 KB) - PSpice Model
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模擬型號

LMR36503MSC3-Q1 PSpice Unencrypted Transient Model

SNVMC17.ZIP (530 KB) - PSpice Model
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模擬型號

LMR36503RS3-Q1 PSpice Unencrypted Transient Model

SNVMC26.ZIP (517 KB) - PSpice Model
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計算工具

LMR36503E-Q1-CALC — LMR36503, LMR36503-Q1, LMR36503E-Q1 converter quickstart tool

Welcome to the quickstart design tool for the LMR36503, LMR36503-Q1, and LMR36503E-Q1. This tool facilitates and assists the power supply engineer with the design of a DC/DC buck regulator based on the above converter family to meet application requirements.
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