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LM53602-Q1

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用于汽车应用的 3.5V 至 36V 输入电压、2 安同步直流/直流转换器

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open-in-new 比较替代产品
功能与比较器件相同但引脚有所不同。
LMQ66420-Q1 正在供货 具有 1.5µA IQ 的汽车类、36V、2A 低 EMI 同步降压转换器 Smaller footprint, lower EMI with dual-random spread spectrum and lower IQ.
LMQ66430-Q1 正在供货 具有 1.5µA IQ 的汽车 36V、3A 低 EMI 同步降压转换器 Smaller footprint, lower EMI with dual-random spread spectrum and lower IQ.

产品详情

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 Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000023 Duty cycle (max) (%) 98
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 Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000023 Duty cycle (max) (%) 98
HTSSOP (PWP) 16 32 mm² (5 mm × 6.4 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 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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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 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 数据表 (Rev. B) PDF | HTML 2016-5-12
应用手册 关于降压转换器中启动电阻器的设计注意事项 PDF | HTML 英语版 PDF | HTML 2023-5-16
用户指南 Single LP8733-Q1 User's Guide to Power DRA78x and TDA3 (Rev. A) PDF | HTML 2021-3-31
应用手册 Designing High Performance, Low-EMI, Automotive Power Supplies 2017-9-30

设计与开发

如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。

评估板

LM536035EVM — LM536035 5V 固定输出,3A 降压稳压器评估模块

此 EVM 展示了 LM53603 汽车级集成式降压稳压器的功能。它具备配置和运行该器件所需的所有输入。此 EVM 的背面配有 EMI 滤波器。用户可选择利用转换器附近的可用接线柱绕过此滤波器。

用户指南: PDF
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有库存
限制:
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无货
评估板

LM53603AEVM — LM53603-Q1 输出可调的 3A 降压稳压器评估模块 (EVM)

LM53603AEVM 展示了 LM53603 汽车级集成式降压转换器的功能。它具备配置和运行该器件所需的所有输入。此 EVM 的背面配有 EMI 滤波器。用户可选择利用转换器附近的可用接线柱绕过此滤波器。
用户指南: PDF
支持的产品和硬件
有库存
限制:
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仿真模型

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

SNVMA57A.ZIP (100 KB) - PSpice 模型
支持的产品和硬件
仿真模型

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

SNVMA58A.ZIP (98 KB) - PSpice 模型
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仿真模型

LM53602 Adjustable PSpice Transient Model

SNVMA59.ZIP (63 KB) - PSpice 模型
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仿真模型

LM53602 Unencrypted Adjustable PSpice Transient Model

SNVMAC1.ZIP (7 KB) - PSpice 模型
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参考设计

PMP10651 — 适合 12V 电池且具有所有保护功能的 2.2MHz 开关、同步分离电源参考设计

PMP10651 是一种低噪声、多输出 SMPS 设计,其中 LM53603 用于反相降压/升压 Fly-Buck 拓扑,可生成多个噪声敏感型应用所需的正负电源,例如为高速视频放大器、RF 放大器、精密低噪声放大器等供电。该设计接受 7Vin 至 15Vin 直流输入电压(来自 12V 铅酸电池),并提供 +12V/500mA、-12V/500mA、5V/400mA 和 3.3V/150mA 的输出。它体积小巧,是替代反激式或推挽式转换器的经济高效解决方案。

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参考设计

TIDEP-0091 — 针对 77GHz 级发送器参考设计进行功率优化

TIDEP-0091 重点介绍了如何在储液箱液位探测应用、位移传感器、4 至 20mA 传感器和其他低功耗应用中对 IWR14xx 76 至 81GHz 毫米波传感器进行功耗优化,从而以高精度和超低功耗进行距离检测。在这些应用中,系统通常在低压数据线上运行,其提供的功率低于工作功耗。占空比调控对于降低平均功率以满足输入功率限制至关重要。通过 MSP432 对 IWR14xx 器件进行外部占空比调控,实现周期性传感的功耗优化。此外,该参考设计还提供了一维距离检测的示例配置。

了解有关使用 77GHz 毫米波检测液位的更多信息 (SPYY004)。

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封装 引脚 CAD 符号、封装和 3D 模型
HTSSOP (PWP) 16 Ultra Librarian

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