TPS745-Q1

現行

具電源良好指示的車用 500mA 低 IQ 高 PSRR 低壓差 (LDO) 電壓穩壓器

產品詳細資料

Output options Adjustable Output, Fixed Output Iout (max) (A) 0.5 Vin (max) (V) 6 Vin (min) (V) 1.5 Vout (max) (V) 5.5 Vout (min) (V) 0.55 Fixed output options (V) 0.7, 1, 1.05, 1.1, 1.15, 1.2, 1.25, 1.3, 1.35, 1.5, 1.7, 1.8, 2.2, 2.5, 2.8, 2.9, 3, 3.3, 3.4, 5 Noise (µVrms) 53 Iq (typ) (mA) 0.025 Thermal resistance θJA (°C/W) 55, 55.5 Rating Automotive Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Output discharge, Power good, Soft start, Wettable flanks package Accuracy (%) 2 PSRR at 100 KHz (dB) 45 Dropout voltage (Vdo) (typ) (mV) 225 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 0.5 Vin (max) (V) 6 Vin (min) (V) 1.5 Vout (max) (V) 5.5 Vout (min) (V) 0.55 Fixed output options (V) 0.7, 1, 1.05, 1.1, 1.15, 1.2, 1.25, 1.3, 1.35, 1.5, 1.7, 1.8, 2.2, 2.5, 2.8, 2.9, 3, 3.3, 3.4, 5 Noise (µVrms) 53 Iq (typ) (mA) 0.025 Thermal resistance θJA (°C/W) 55, 55.5 Rating Automotive Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Output discharge, Power good, Soft start, Wettable flanks package Accuracy (%) 2 PSRR at 100 KHz (dB) 45 Dropout voltage (Vdo) (typ) (mV) 225 Operating temperature range (°C) -40 to 125
VSON (DRB) 8 9 mm² 3 x 3 WSON (DRV) 6 4 mm² 2 x 2
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Device junction temperature: –40°C to 150°C
  • Package:
    • 2-mm × 2-mm wettable flank WSON
    • 3-mm × 3-mm wettable flank VSON
  • Input voltage range: 1.5 V to 6.0 V
  • Output voltage range:
    • Fixed option: 0.65 V to 5.0 V
    • Adjustable option: 0.55 V to 5.5 V
  • High PSRR: 45 dB at 100 kHz
  • Output accuracy: ±0.85% (25°C), ±1.5% maximum
  • Power-good output options:
    • Open-drain and push-pull
  • Ultra-low dropout:
    • 160 mV (max) at 500 mA (3.3 VOUT)
  • Stable with a 1-µF or larger capacitor
  • Low IQ: 25 µA (typical), 1.5 µA (shutdown)
  • Active output discharge
  • Functional Safety-Capable
  • Low thermal resistance:
    • DRV (6-pin WSON), RθJA = 80.3°C/W
    • DRB (8-pin VSON), RθJA = 55.5°C/W
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Device junction temperature: –40°C to 150°C
  • Package:
    • 2-mm × 2-mm wettable flank WSON
    • 3-mm × 3-mm wettable flank VSON
  • Input voltage range: 1.5 V to 6.0 V
  • Output voltage range:
    • Fixed option: 0.65 V to 5.0 V
    • Adjustable option: 0.55 V to 5.5 V
  • High PSRR: 45 dB at 100 kHz
  • Output accuracy: ±0.85% (25°C), ±1.5% maximum
  • Power-good output options:
    • Open-drain and push-pull
  • Ultra-low dropout:
    • 160 mV (max) at 500 mA (3.3 VOUT)
  • Stable with a 1-µF or larger capacitor
  • Low IQ: 25 µA (typical), 1.5 µA (shutdown)
  • Active output discharge
  • Functional Safety-Capable
  • Low thermal resistance:
    • DRV (6-pin WSON), RθJA = 80.3°C/W
    • DRB (8-pin VSON), RθJA = 55.5°C/W

The TPS745-Q1 is a 500-mA ultra-low-dropout regulator (LDO) with power-good functionality. This device is available in a small 6-pin, 2-mm × 2-mm WSON package and a small 8-pin, 3-mm × 3-mm VSON package with wettable flanks to facilitate optical inspection. The TPS745-Q1 consumes low quiescent current and provides fast line and load transient performance.

The TPS745-Q1 is a flexible device for post-regulation by supporting an input voltage range from 1.5 V to 6.0 V and an externally adjustable output range of 0.55 V to 5.5 V. The device also features fixed output voltages for powering common voltage rails.

The TPS745-Q1 has a power-good (PG) output that monitors the voltage at the feedback pin to indicate the status of the output voltage. The EN input and PG output can be used for sequencing multiple power supplies in the system.

The TPS745-Q1 is stable with small ceramic output capacitors, allowing for a small overall solution size. A precision band-gap and error amplifier provides high accuracy of ±0.85% (max) at 25°C and ±1.5% (max) over temperature. This device includes integrated thermal shutdown, current limit, and undervoltage lockout (UVLO) features. The TPS745-Q1 has an internal foldback current limit that helps reduce the thermal dissipation during short-circuit events.

The TPS745-Q1 is a 500-mA ultra-low-dropout regulator (LDO) with power-good functionality. This device is available in a small 6-pin, 2-mm × 2-mm WSON package and a small 8-pin, 3-mm × 3-mm VSON package with wettable flanks to facilitate optical inspection. The TPS745-Q1 consumes low quiescent current and provides fast line and load transient performance.

The TPS745-Q1 is a flexible device for post-regulation by supporting an input voltage range from 1.5 V to 6.0 V and an externally adjustable output range of 0.55 V to 5.5 V. The device also features fixed output voltages for powering common voltage rails.

The TPS745-Q1 has a power-good (PG) output that monitors the voltage at the feedback pin to indicate the status of the output voltage. The EN input and PG output can be used for sequencing multiple power supplies in the system.

The TPS745-Q1 is stable with small ceramic output capacitors, allowing for a small overall solution size. A precision band-gap and error amplifier provides high accuracy of ±0.85% (max) at 25°C and ±1.5% (max) over temperature. This device includes integrated thermal shutdown, current limit, and undervoltage lockout (UVLO) features. The TPS745-Q1 has an internal foldback current limit that helps reduce the thermal dissipation during short-circuit events.

下載 觀看有字幕稿的影片 影片

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 4
類型 標題 日期
* Data sheet TPS745-Q1 Automotive, 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages datasheet (Rev. C) PDF | HTML 2022年 5月 19日
Functional safety information TPS745-Q1 Functional Safety FIT Rate, FMD and Pin FMA (Rev. A) PDF | HTML 2023年 10月 20日
Product overview Mobileye EyeQ6L – Semi Discrete Power Tree PDF | HTML 2022年 8月 5日
EVM User's guide TPS746EVM-009 Evaluation Module User's Guide 2018年 3月 14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

TPS746EVM-009 — 具有電源良好狀態的 TPS746 可調整 1-A LDO 線性穩壓器評估模組

The TPS746EVM-009 evaluation module (EVM) is designed for a typical configuration to evaluate the operation and performance of the TPS746, which is a 1-A, low-Vin, low-dropout (LDO) voltage regulator with power good.

The EVM circuit board is configured to be a reference design for engineering (...)

使用指南: PDF
TI.com 無法提供
參考設計

TIDA-020061 — 適用於 100/1000Base-T1 乙太網路應用的汽車數據線供電 PD 參考設計

此參考設計實作供電裝置 (PD),以展示汽車應用中的數據線供電 (PoDL)。此設計使用 DP83TG720S-Q1 1000MBit/s 單對乙太網路 (SPE) PHY,並可選擇切換至 DP83TC812S-Q1 SPE PHY 以進行 100MBit/s 運作。耦合與去耦合網路用於分割單對乙太網路 (SPE) 纜線上的資料和電源。
Design guide: PDF
參考設計

TIDA-020060 — 適用於 100/1000Base-T1 乙太網路應用的汽車數據線供電參考設計

此參考設計展現出汽車應用實例的數據線供電 (PoDL) 實作。此設計使用 DP83TG720S-Q1 1000MBit/s 單對乙太網路 (SPE) PHY,並可選擇切換至 DP83TC812S-Q1 SPE PHY 以進行 100MBit/s 運作。耦合和去耦合網路用於在 50W 的最大功率下耦合。
Design guide: PDF
參考設計

PMP41085 — Automotive 100W infotainment display module reference design with functional safety capabilities<

This reference design showcases the 100W automotive infotainment display module power reference design with cold crank, load dump and FuSa Capabilities.

The LM74900-Q1 is the first stage of the design playing a role of protection for negative input voltage, undervoltage, locked output, and (...)

Test report: PDF
參考設計

PMP23242 — 微處理器單元 (MPU) 離散式汽車電源參考設計

此設計展示了使用低成本離散式電壓穩壓器的電源樹,並詳細介紹 AM62x-Q1 處理器系列不同電壓軌的特定通電和斷電時序要求。
Test report: PDF
參考設計

PMP30819 — 具三個輸出且使用 PMIC 和 LDO 的車用電源供應器參考設計

此多重輸出電源可經由多通道 IC (PMIC) LP87653-Q1 從 5-V 輸入電壓為客製化 ASIC 供電。儘管此 PMIC 具有四軌,但第三相仍未使用,且 1.1 VA (其中 A 等於類比的敏感負載) 是根據客戶需求透過低壓差穩壓器 (LDO) 所產生。用於 2.5 VA 和 1.1 VA 的低壓差線性穩壓器是 TPS745-Q1。兩個低壓差線性穩壓器皆以 3.3 V 供電,以降低低壓差線性穩壓器 1.1 VA 的損耗,並在輸入中新增兩個功率電阻。
Test report: PDF
參考設計

PMP30921 — 4-W 非連續導通模式一次側穩壓返馳參考設計

這款微型 4-W 返馳式轉換器具有額外的三個隔離輸出繞組,總共可產生四個輸出。主繞組和輔助繞組串聯之間的繞組比達到 1:1,就可用交流飛馳電容器取代傳統 RCD 緩衝器,以提供更高的效率和更低的 EMI;這需要最低的漏感。汽車輸入範圍為 7-V 至 42-V 突波。三個輸出由低壓差線性穩壓器進行後調節,以改善線路和負載調節及電源漣波抑制 (PSRR)。

已新增差動輸入濾波器來衰減傳導發射,蕭特基整流器則提供反向極性保護。針對使用通用控制器進行多輸出一次側調節的所有方法,輔助繞組串聯無負載是交互調節的限制。

Test report: PDF
參考設計

PMP22650 — GaN 式 6.6-kW 雙向車載充電器參考設計

PMP22650 參考設計為 6.6-kW 雙向車載充電器。此設計採用雙相圖騰柱 PFC 與具同步整流的全橋 CLLLC 轉換器。CLLLC 利用頻率和相位調變來調節所需調節範圍內的輸出。此設計在 TMS320F28388D 微控制器中使用單一處理核心,以控制 PFC 和 CLLLC 二者。同步整流可透過與 Rogowski 線圈電流感測器相同的微控制器實作。透過使用高速 GaN 開關 (LMG3522) 可實現高密度。PFC 以 120 kHz 運作,CLLLC 則以 200 kHz 至 800 kHz 的可變頻率運作。開放訊框功率密度 3.8 kW/L 實現 96.5% (...)
Test report: PDF
電路圖: PDF
參考設計

PMP22334 — 高效、低雜訊 5-V/3.3-V/1.8-V/1.1-V 車用顯示器參考設計

This reference design is for an automotive display application with a customized form factor. The design demonstrates the excellent thermal performance of LM61460-Q1 with its HotRod™ QFN package as well as the low EMI aided by its spread spectrum feature. It generates four (...)
Test report: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VSON (DRB) 8 Ultra Librarian
WSON (DRV) 6 Ultra Librarian

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

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