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LM1117-Q1

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具有高电源抑制比的汽车级 1A、18V 低压降 (LDO) 线性稳压器

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LM1117-Q1

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产品详情

Rating Automotive Vin (max) (V) 18 Vin (min) (V) 2.5 Iout (max) (A) 1 Output options Fixed Output Vout (max) (V) 12 Vout (min) (V) 1.2 Fixed output options (V) 1.2, 3.3, 5, 12 Noise (µVrms) 60 PSRR at 100 KHz (dB) 53 Iq (typ) (mA) 0.065 Thermal resistance θJA (°C/W) 67.2, 95 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Foldback Overcurrent protection Accuracy (%) 1 Dropout voltage (Vdo) (typ) (mV) 900 Operating temperature range (°C) -40 to 125
Rating Automotive Vin (max) (V) 18 Vin (min) (V) 2.5 Iout (max) (A) 1 Output options Fixed Output Vout (max) (V) 12 Vout (min) (V) 1.2 Fixed output options (V) 1.2, 3.3, 5, 12 Noise (µVrms) 60 PSRR at 100 KHz (dB) 53 Iq (typ) (mA) 0.065 Thermal resistance θJA (°C/W) 67.2, 95 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Foldback Overcurrent protection Accuracy (%) 1 Dropout voltage (Vdo) (typ) (mV) 900 Operating temperature range (°C) -40 to 125
SOT-223 (DCY) 4 45.5 mm² 6.5 x 7 TO-252 (KVU) 3 66.726 mm² 6.6 x 10.11
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
    • Junction temperature: –40°C to +150°C, TJ
  • Input voltage range VIN:
    • Absolute maximum: 20V
    • Operating range: 2.5V to 18V
  • Output voltage range VOUT:
    • 1.2V, 3.3V, 5V, 12V fixed
    • 0.8V to 13.0V (fixed, 100mV steps) available upon request
  • Output current: Up to 1A
  • Low quiescent current IQ: 65µA (typical)
  • ±1% output accuracy
  • High PSRR:
    • 60dB at 1kHz
    • 40dB at 1MHz
  • Internal soft-start time: 500µs (typical)
  • Foldback current limiting and thermal protection
  • Stable with 1µF ceramic output capacitors
  • Packages:
    • SOT-223 (DCY), RθJA= 95.4°C/W
    • TO-252 (KVU), RθJA= 67.2°C/W
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
    • Junction temperature: –40°C to +150°C, TJ
  • Input voltage range VIN:
    • Absolute maximum: 20V
    • Operating range: 2.5V to 18V
  • Output voltage range VOUT:
    • 1.2V, 3.3V, 5V, 12V fixed
    • 0.8V to 13.0V (fixed, 100mV steps) available upon request
  • Output current: Up to 1A
  • Low quiescent current IQ: 65µA (typical)
  • ±1% output accuracy
  • High PSRR:
    • 60dB at 1kHz
    • 40dB at 1MHz
  • Internal soft-start time: 500µs (typical)
  • Foldback current limiting and thermal protection
  • Stable with 1µF ceramic output capacitors
  • Packages:
    • SOT-223 (DCY), RθJA= 95.4°C/W
    • TO-252 (KVU), RθJA= 67.2°C/W

The LM1117-Q1 is an AEC-Q100 qualified linear voltage regulator for automotive applications. The device provides improved performance compared to traditional x1117 regulators, with tighter output accuracy and low quiescent current (IQ) to minimize standby power consumption.

The LM1117-Q1 input voltage range is from 2.5V to 18V (20V absolute maximum). The device is available in 1.2V, 3.3V, 5V, and 12V fixed output voltages.

The wide bandwidth PSRR performance of the LM1117-Q1 is typically greater than 60dB at 1kHz and 40dB at 1MHz, which attenuates the switching frequency of an upstream DC/DC converter.

Additionally, the LM1117-Q1 has an internal soft-start feature to reduce inrush current during start-up, which helps save space and cost in a design by minimizing the need for input capacitance. The LM1117-Q1 features a foldback current limit that reduces the power dissipation of the device during high-load current faults or shorting events.

The LM1117-Q1 is an AEC-Q100 qualified linear voltage regulator for automotive applications. The device provides improved performance compared to traditional x1117 regulators, with tighter output accuracy and low quiescent current (IQ) to minimize standby power consumption.

The LM1117-Q1 input voltage range is from 2.5V to 18V (20V absolute maximum). The device is available in 1.2V, 3.3V, 5V, and 12V fixed output voltages.

The wide bandwidth PSRR performance of the LM1117-Q1 is typically greater than 60dB at 1kHz and 40dB at 1MHz, which attenuates the switching frequency of an upstream DC/DC converter.

Additionally, the LM1117-Q1 has an internal soft-start feature to reduce inrush current during start-up, which helps save space and cost in a design by minimizing the need for input capacitance. The LM1117-Q1 features a foldback current limit that reduces the power dissipation of the device during high-load current faults or shorting events.
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* 数据表 LM1117-Q1 18V, 1A, Automotive, Fixed-Output Linear Voltage Regulator 数据表 (Rev. A) PDF | HTML 2025年 6月 24日

设计和开发

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评估板

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用户指南: PDF
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用户指南: PDF
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仿真模型

LM1117 1P8 PSpice Transient Model

SNOM484.ZIP (56 KB) - PSpice Model
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仿真模型

LM1117 1P8 Unencrypted PSpice Transient Model

SNOM483.ZIP (1 KB) - PSpice Model
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仿真模型

LM1117 2P5 PSpice Transient Model

SNOM481.ZIP (61 KB) - PSpice Model
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仿真模型

LM1117 2P5 Unencrypted PSpice Transient Model

SNOM482.ZIP (1 KB) - PSpice Model
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仿真模型

LM1117 2P85 PSpice Transient Model

SNOM480.ZIP (59 KB) - PSpice Model
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LM1117 2P85 Unencrypted PSpice Transient Model

SNOM479.ZIP (1 KB) - PSpice Model
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仿真模型

LM1117 3P3 PSpice Transient Model

SNOM487.ZIP (60 KB) - PSpice Model
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仿真模型

LM1117 3P3 Unencrypted PSpice Transient Model

SNOM488.ZIP (1 KB) - PSpice Model
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仿真模型

LM1117 5P0 PSpice Transient Model

SNOM486.ZIP (57 KB) - PSpice Model
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仿真模型

LM1117 5P0 Unencrypted PSpice Transient Model

SNOM485.ZIP (1 KB) - PSpice Model
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仿真模型

LM1117 ADJ PSpice Transient Model

SNOM556.ZIP (61 KB) - PSpice Model
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LM1117 Adjustable Unencrypted PSpice Transient Model

SNOM557.ZIP (1 KB) - PSpice Model
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封装 引脚 CAD 符号、封装和 3D 模型
SOT-223 (DCY) 4 Ultra Librarian
TO-252 (KVU) 3 Ultra Librarian
应遵守 TI 评估类商品的标准条款与条件。

订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

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