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AC/DC 和 DC/DC 轉換器 (整合式 FET)

LM53602-Q1

現行

適用汽車應用的 3.5 至 36Vin、2 安培同步 DC-DC 轉換器

立即訂購
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，但引腳輸出與所比較的裝置不同
LMQ66420-Q1 現行 具 1.5-µA IQ 的車用 36-V、2-A 低 EMI 同步降壓轉換器 Smaller footprint, lower EMI with dual-random spread spectrum and lower IQ.
LMQ66430-Q1 現行 具 1.5-µA IQ 的汽車 36V、3-A、低 EMI 同步降壓轉換器 Smaller footprint, lower EMI with dual-random spread spectrum and lower IQ.

LM53602-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) 2 Vin (max) (V) 42 Vin (min) (V) 3.5 Vout (max) (V) 9.9 Vout (min) (V) 3.2 Features Enable, Fixed soft start, Forced PWM, Frequency synchronization, Light-load efficiency, Overcurrent protection, Power good, Synchronous rectification Control mode current mode Switching frequency (min) (kHz) 1850 Switching frequency (max) (kHz) 2350 Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 23 Duty cycle (max) (%) 98 Type Converter
Rating Automotive Topology Buck Iout (max) (A) 2 Vin (max) (V) 42 Vin (min) (V) 3.5 Vout (max) (V) 9.9 Vout (min) (V) 3.2 Features Enable, Fixed soft start, Forced PWM, Frequency synchronization, Light-load efficiency, Overcurrent protection, Power good, Synchronous rectification Control mode current mode Switching frequency (min) (kHz) 1850 Switching frequency (max) (kHz) 2350 Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 23 Duty cycle (max) (%) 98 Type Converter
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • The LM53603-Q1, LM53602-Q1 are available as
    AEC-Q1-Qualified Automotive Grade Products
    With Following Results:
    • Device Temperature Grade 1: –40°C to +125°C
      Ambient Operating Range
    • Device HBM ESD Classification Level 1C
    • Device CDM ESD Classification Level C4B
  • 3 A or 2 A maximum load current
  • Input Voltage Range from 3.5 V to 36 V:
    Transients to 42 V
  • Output Voltage Options: 5 V, 3.3 V, ADJ
  • 2.1 MHz Fixed Switching Frequency
  • ±2% Output Voltage Tolerance
  • –40°C to 150°C Junction Temperature Range
  • 1.7 µA Shutdown Current (typical)
  • 24 µA Input Supply Current at No Load (typical)
  • No external Feed-back Divider Required for 5 V or
    3.3 V output
  • Reset Output With Filter and Delay
  • Automatic Light Load Mode for Improved
    Efficiency
  • User-Selectable Forced PWM mode (FPWM)
  • Built-in Loop Compensation, Soft-start, Current
    Limit, Thermal Shutdown, UVLO, and External
    Frequency Synchronization
  • Thermally Enhanced 16-lead Package:
    5 mm × 4.4 mm × 1 mm
  • The LM53603-Q1, LM53602-Q1 are available as
    AEC-Q1-Qualified Automotive Grade Products
    With Following Results:
    • Device Temperature Grade 1: –40°C to +125°C
      Ambient Operating Range
    • Device HBM ESD Classification Level 1C
    • Device CDM ESD Classification Level C4B
  • 3 A or 2 A maximum load current
  • Input Voltage Range from 3.5 V to 36 V:
    Transients to 42 V
  • Output Voltage Options: 5 V, 3.3 V, ADJ
  • 2.1 MHz Fixed Switching Frequency
  • ±2% Output Voltage Tolerance
  • –40°C to 150°C Junction Temperature Range
  • 1.7 µA Shutdown Current (typical)
  • 24 µA Input Supply Current at No Load (typical)
  • No external Feed-back Divider Required for 5 V or
    3.3 V output
  • Reset Output With Filter and Delay
  • Automatic Light Load Mode for Improved
    Efficiency
  • User-Selectable Forced PWM mode (FPWM)
  • Built-in Loop Compensation, Soft-start, Current
    Limit, Thermal Shutdown, UVLO, and External
    Frequency Synchronization
  • Thermally Enhanced 16-lead Package:
    5 mm × 4.4 mm × 1 mm

The LM53603-Q1, LM53602-Q1 buck regulators are specifically designed for automotive applications, providing an output voltage of 5 V or 3.3 V (with ADJ option) at 3 A or 2 A, from an input voltage of up to 36 V. Advanced high-speed circuitry allows the device to regulate from an input of up to 20 V, while providing an output of 5 V at a switching frequency of 2.1 MHz. The innovative architecture allows the device to regulate a 3.3 V output from an input voltage of only 3.5 V. All aspects of this product are optimized for the automotive customer. An input voltage range up to 36 V, with transient tolerance up to 42 V, eases input surge protection design. An open drain reset output, with filtering and delay, provides a true indication of system status. This feature negates the requirement for an additional supervisory component, saving cost and board space. Seamless transition between PWM and PFM modes, along with a no-load operating current of only 24 µA, ensures high efficiency and superior transient response at all loads.

The LM53603-Q1, LM53602-Q1 buck regulators are specifically designed for automotive applications, providing an output voltage of 5 V or 3.3 V (with ADJ option) at 3 A or 2 A, from an input voltage of up to 36 V. Advanced high-speed circuitry allows the device to regulate from an input of up to 20 V, while providing an output of 5 V at a switching frequency of 2.1 MHz. The innovative architecture allows the device to regulate a 3.3 V output from an input voltage of only 3.5 V. All aspects of this product are optimized for the automotive customer. An input voltage range up to 36 V, with transient tolerance up to 42 V, eases input surge protection design. An open drain reset output, with filtering and delay, provides a true indication of system status. This feature negates the requirement for an additional supervisory component, saving cost and board space. Seamless transition between PWM and PFM modes, along with a no-load operating current of only 24 µA, ensures high efficiency and superior transient response at all loads.
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技術文件

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類型 標題 日期
* Data sheet LM53603-Q1 (3 A), LM53602-Q1 (2 A) 3.5 V to 36 V Wide-VIN Synchronous 2.1 MHz Step-Down Converters for Automotive Applications datasheet (Rev. B) PDF | HTML 2016年 5月 12日
Application note Design Consideration on Boot Resistor in Buck Converter PDF | HTML 2023年 5月 15日
User guide Single LP8733-Q1 User's Guide to Power DRA78x and TDA3 (Rev. A) PDF | HTML 2021年 3月 31日
Application note Designing High Performance, Low-EMI, Automotive Power Supplies 2017年 9月 30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

LM536035EVM — LM536035 5V 固定輸出、3A 降壓穩壓器評估模組

This EVM demonstrates the capabilities of the LM53603 Automotive Integrated Buck regulator. It features all the input necessary to configure and operate the device. The EVM has an EMI filter on the back side. The user can choose to bypass that filter using the available posts close to the converter.

使用指南: PDF
TI.com 無法提供
開發板

LM53603AEVM — LM53603-Q1 可調整輸出 3A 降壓穩壓器評估模組 (EVM)

LM53603AEVM 展示 LM53603 車用整合式降壓穩壓器的功能。具備用於設定與操作此裝置的所有必要輸入。EVM 背面設有 EMI 濾波器。使用者可透過靠近轉換器的接點選擇是否旁路該濾波器。
使用指南: PDF
TI.com 無法提供
模擬型號

LM53602 3P3 PSpice Unencrypted Transient Model (Rev. A)

SNVMA57A.ZIP (100 KB) - PSpice Model
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模擬型號

LM53602 5P0 PSpice Unencrypted Transient Model (Rev. A)

SNVMA58A.ZIP (98 KB) - PSpice Model
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模擬型號

LM53602 Adjustable PSpice Transient Model

SNVMA59.ZIP (63 KB) - PSpice Model
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模擬型號

LM53602 Unencrypted Adjustable PSpice Transient Model

SNVMAC1.ZIP (7 KB) - PSpice Model
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參考設計

TIDEP-0091 — 77 GHz 液位發送器功率最佳化參考設計

TIDEP-0091 強調 IWR14xx 76 至 81GHz 毫米波感測器的功耗最佳化策略，適用於儲槽液位探查應用，位移感測器，4 至 20mA 感測器，以及其他低功耗應用，以最小功率範圍提供高準確度偵測範圍。在這些應用中，系統通常會以低電壓資料線路運作，提供的功率通常低於操作功耗。工作循環對於降低平均功率以滿足電源輸入限制至關重要。可透過 IWR14xx 裝置的 MSP432 外部工作循環實現功耗最佳化，以進行定期感測。此外，此 參考設計也提供一維範圍偵測的樣本配置。

閱讀更多有關使用 77-GHz 毫米波進行液位感測的資訊 (SPYY004)。

Design guide: PDF
電路圖: PDF
參考設計

PMP10651 — 適用於含所有防護的 12V 電池之 2.2 MHz 切換同步雙電源參考設計

PMP10651 is a low noise, multi-output SMPS design where LM53603 is used in Inverting Buck-Boost Fly buck topology to generate positive and negative supply needed in multiple noise sensitive applications such as powering High Speed Video Amplifier, RF amplifier, Precision Low noise amplifier (...)
Test report: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (PWP) 16 Ultra Librarian
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  • 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
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