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AC/DC 和 DC/DC 轉換器 (整合式 FET)

LM53603-Q1

現行

車用 3.5-V 至 36-V、3-A 同步降壓轉換器

立即訂購
產品規格表

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open-in-new 比較替代產品
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LMQ66430-Q1 現行 具 1.5-µA IQ 的汽車 36V、3-A、低 EMI 同步降壓轉換器 Integrated input bypass capacitor and boot cap for lower EMI and smaller footprint, dual-random spread spectrum and lower IQ.

LM53603-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) 3 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) 3 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
Technical article Overcoming automotive cluster power supply design challenges PDF | HTML 2015年 11月 13日
Technical article How to overcome automotive front-end design challenges PDF | HTML 2015年 9月 10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

LM536033EVM — 3.3V 固定輸出、3A 降壓穩壓器評估模組

LM536033EVM 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
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

LM53603 3P3 Unencrypted PSpice Transient Model

SNVMAC0.ZIP (7 KB) - PSpice Model
下載
模擬型號

LM53603 3P3V PSpice Transient Model

SNVMA46.ZIP (72 KB) - PSpice Model
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模擬型號

LM53603 5P0 Unencrypted PSpice Transient Model

SNVMAB9.ZIP (7 KB) - PSpice Model
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模擬型號

LM53603 5V PSpice Transient Model

SNVMA56.ZIP (61 KB) - PSpice Model
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模擬型號

LM53603 Adjustable PSpice Transient Model

SNVMA55.ZIP (62 KB) - PSpice Model
下載
模擬型號

LM53603 Adjustable Unenecrypted PSpice Transient Model

SNVMAB8.ZIP (7 KB) - PSpice Model
下載
參考設計

PMP10604 — 適用於符合 CISPR 25 5 級之汽車的 EMI 最佳化 2 層 15W 電源供應器

The PMP10604 reference design is a 2-layer board 5V, 3A output power supply using LM53603 buck regulator for cluster unit in automotive applications. The LM53603 is a 3.5V to 36V input, 3A output capable, and 2.1 MHz fixed frequency buck regulator, specially designed for automotive applications. It (...)
Test report: PDF
電路圖: PDF
參考設計

TIDA-01412 — 採用閘道和車體模組且適用於汽車微控制器的電源供應參考設計

此離散式電源參考設計展現了 Freescale™ MPC5748G 微控制器的性能。此參考設計使用五個 DC/DC 轉換器，提供比使用 PMIC 更具彈性且可擴充的設計。支援眾多汽車應用，如閘道與中央車體控制模組。
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00530 — 適用於低功耗 TDA3x 系統的車用電源參考設計

This solution was designed to make an integrated, size-optimized power design for ADAS applications using the TDA3x SoC off of an automotive battery input.  By targeting only applications with lower processing needs, we’re able to choose devices and components which are smaller, compared (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00699 — 具有冷起動運作、瞬態保護及 EMI 濾波器的前端電源設計參考

This solution was designed to be a broadly applicable automotive off-battery front end power supply for 10-15W systems. There is a focus on EMI/EMC testing and compliance as well to help designers satisfy the regulatory requirements associated with producing an automotive electronic subsystem.
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00745 — 適用於車用車身控制模組的 15W 系統級電源參考設計

TIDA-00745 是針對 14W 系統進行最佳化的（CISPR 25 4 類）SMPS 設計，適合汽車車身控制模組。此設計中使用的所有降壓轉換器均以 2.1MHz 的頻率進行切換。

本設計分為四大區塊：

  1. EMI 濾波器：適用於傳導式 EMI 抑制的共模和差動濾波器
  2. 預升壓 (TPS40210-Q1)：高效率、低成本的非同步預升壓設計，適合 15W 應用。輸出維持在 7.5V，當 Vin > Vout（程式化升壓輸出）時，輸出會遵循輸入並實現旁路運作（在 Vin > 編程 7.5V 升壓輸出時透過導電 PFET）。
  3. 降壓轉換器（LM53603-Q1、LM53601-Q1 和 (...)
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
參考設計

PMP10652 — 具備所有必要汽車防護之 30W ADAS 系統的系統級參考設計

PMP10652 is a System optimized (CISPR 25 Class 3) 30W design for Surround View ADAS system.

The design has various protections such as Load dump through TVS (ISO pulse testing), Reverse Voltage (Innovative Smart diode with very low Iq), Battery Disconnect Switch with OVP protection (PFET) and is EMI (...)

Test report: PDF
電路圖: PDF
參考設計

PMP10750 — 配備汽車防護的 20-W ADAS 系統級電力參考設計

PMP10750 is a System optimized (CISPR 25 Class 5) 20W design for upstream converter used in ADAS system with automotive protection.

The design has various protections such as Load dump through TVS (ISO pulse testing), Reverse Voltage (Innovative Smart diode with very low Iq), Battery Disconnect (...)

Test report: PDF
電路圖: PDF
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