首頁 電源管理 線性與低壓差 (LDO) 穩壓器
首頁
電源管理
線性與低壓差 (LDO) 穩壓器
最新

LM1117-Q1

現行

具有高電源供應拒斥比的車用 1A 18V 低壓差 (LDO) 線性穩壓器

立即訂購
產品規格表

LM1117-Q1

現行
產品規格表 立即訂購

產品詳細資料

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 Features Foldback Overcurrent protection Thermal resistance θJA (°C/W) 67.2, 95 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 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 Features Foldback Overcurrent protection Thermal resistance θJA (°C/W) 67.2, 95 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 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.
filter 尋找其它 線性與低壓差 (LDO) 穩壓器
下載 觀看有字幕稿的影片 影片

您可能會感興趣的類似產品

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
TLV767-Q1 現行 提供可調整和固定輸出的車用 1A、16V 正電壓低壓差線性穩壓器 Similar specs, not p2p

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 5
類型 標題 日期
* Data sheet LM1117-Q1 18V, 1A, Automotive, Fixed-Output Linear Voltage Regulator datasheet (Rev. A) PDF | HTML 2025年 6月 24日
Application note An empirical analysis of the impact of board layout on LDO thermal performance (Rev. A) PDF | HTML 2025年 9月 23日
Application note A Topical Index of TI LDO Application Notes (Rev. F) 2019年 6月 27日
E-book LDO Basics (Rev. A) 2019年 4月 8日
Technical article LDO basics: dropout PDF | HTML 2017年 3月 16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

MLTLDO2EVM-037 — 適用於 DCY、DDA 和 KVU 封裝的通用 LDO 線性電壓穩壓器評估模組

MLTLDO2EVM-037 多重封裝低壓差 (LDO) 評估模組 (EVM) 可讓設計工程師評估多種常用線性穩壓器封裝的運作情形及性能，以利在自己的電路應用中使用。此 EVM 配置包含 DDA、3 針腳和 5 針腳 KVU，以及用於工程師焊接和評估其零件的 DCY 封裝板上配置。

使用指南: PDF
TI.com 無法提供
開發板

TLV1117LV33EVM-714 — TLV1117LV 1-A 固定正電壓 LDO 線性穩壓器評估模組

The TLV1117LV33EVM-714 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TLV1117LVxx device, which is a 1-A, positive fixed-voltage low-dropout (LDO) linear regulator.
使用指南: PDF
TI.com 無法提供
模擬型號

LM1117 1P8 PSpice Transient Model

SNOM484.ZIP (56 KB) - PSpice Model
下載
模擬型號

LM1117 1P8 Unencrypted PSpice Transient Model

SNOM483.ZIP (1 KB) - PSpice Model
下載
模擬型號

LM1117 2P5 PSpice Transient Model

SNOM481.ZIP (61 KB) - PSpice Model
下載
模擬型號

LM1117 2P5 Unencrypted PSpice Transient Model

SNOM482.ZIP (1 KB) - PSpice Model
下載
模擬型號

LM1117 2P85 PSpice Transient Model

SNOM480.ZIP (59 KB) - PSpice Model
下載
模擬型號

LM1117 2P85 Unencrypted PSpice Transient Model

SNOM479.ZIP (1 KB) - PSpice Model
下載
模擬型號

LM1117 3P3 PSpice Transient Model

SNOM487.ZIP (60 KB) - PSpice Model
下載
模擬型號

LM1117 3P3 Unencrypted PSpice Transient Model

SNOM488.ZIP (1 KB) - PSpice Model
下載
模擬型號

LM1117 5P0 PSpice Transient Model

SNOM486.ZIP (57 KB) - PSpice Model
下載
模擬型號

LM1117 5P0 Unencrypted PSpice Transient Model

SNOM485.ZIP (1 KB) - PSpice Model
下載
模擬型號

LM1117 ADJ PSpice Transient Model

SNOM556.ZIP (61 KB) - PSpice Model
下載
模擬型號

LM1117 Adjustable Unencrypted PSpice Transient Model

SNOM557.ZIP (1 KB) - PSpice Model
下載
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-223 (DCY) 4 Ultra Librarian
TO-252 (KVU) 3 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

內含資訊：
  • RoHS
  • REACH
  • 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
內含資訊：
  • 晶圓廠位置
  • 組裝地點

建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片