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線性與低壓差 (LDO) 穩壓器

TPS748A-Q1

現行

具電源良好與啟用功能的車用 1.5-A、0.8-V 低雜訊可調式 LDO 電壓穩壓器

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產品規格表

TPS748A-Q1

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Vin (max) (V) 6 Vin (min) (V) 0.8 Iout (max) (A) 1.5 Output options Adjustable Output Vout (max) (V) 3.6 Vout (min) (V) 0.8 Noise (µVrms) 7 PSRR at 100 KHz (dB) 38 Iq (typ) (mA) 0.55 Features Enable, Power good, Soft start Thermal resistance θJA (°C/W) 47.2 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Accuracy (%) 1.25 Dropout voltage (Vdo) (typ) (mV) 75 Operating temperature range (°C) -40 to 150
Rating Automotive Vin (max) (V) 6 Vin (min) (V) 0.8 Iout (max) (A) 1.5 Output options Adjustable Output Vout (max) (V) 3.6 Vout (min) (V) 0.8 Noise (µVrms) 7 PSRR at 100 KHz (dB) 38 Iq (typ) (mA) 0.55 Features Enable, Power good, Soft start Thermal resistance θJA (°C/W) 47.2 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Accuracy (%) 1.25 Dropout voltage (Vdo) (typ) (mV) 75 Operating temperature range (°C) -40 to 150
VSON (DRC) 10 9 mm² (3 mm × 3 mm)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C ≤ TA ≤ +125°C
    • HBM ESD classification level 2
    • CDM ESD classification level C4A
  • Extended junction temperature (TJ) range:
    • –40°C to +150°C
  • Input voltage range:
    • IN: VIN + VDO to 6.0V
    • BIAS: VOUT + VDO(BIAS) to 6.0V
  • VOUT range: 0.8V to 3.6V
  • Low dropout: 60mV typical at 1.5A, VBIAS = 5V
  • Power-good (PG) output allows supply monitoring or provides a sequencing signal for other supplies
  • 2% accuracy over line, load, and temperature
  • Programmable soft-start provides linear voltage start-up
  • VBIAS permits low VIN operation with good transient response
  • Stable with any output capacitor ≥ 2.2µF
  • Available in small, 3mm × 3mm × 1mm VSON-10 packages
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C ≤ TA ≤ +125°C
    • HBM ESD classification level 2
    • CDM ESD classification level C4A
  • Extended junction temperature (TJ) range:
    • –40°C to +150°C
  • Input voltage range:
    • IN: VIN + VDO to 6.0V
    • BIAS: VOUT + VDO(BIAS) to 6.0V
  • VOUT range: 0.8V to 3.6V
  • Low dropout: 60mV typical at 1.5A, VBIAS = 5V
  • Power-good (PG) output allows supply monitoring or provides a sequencing signal for other supplies
  • 2% accuracy over line, load, and temperature
  • Programmable soft-start provides linear voltage start-up
  • VBIAS permits low VIN operation with good transient response
  • Stable with any output capacitor ≥ 2.2µF
  • Available in small, 3mm × 3mm × 1mm VSON-10 packages

The TPS748A-Q1 low-dropout (LDO) linear regulator provides an easy-to-use robust power management solution for a wide variety of applications. User-programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current on start-up. The soft-start is monotonic and designed for powering many different types of processors and application-specific integrated circuits (ASICs). The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility enables a solution to be configured that meets the sequencing requirements of many applications. Field-programmable gate arrays (FPGAs), digital signal processors (DSPs), and other applications with special start-up requirements are some examples that benefit from this complete flexibility.

A precision reference and error amplifier deliver 2% accuracy over load, line, temperature, and process. The device is stable with any type of capacitor greater than or equal to 2.2µF, and is fully specified for TJ = –40°C to +150°C. The TPS748A-Q1 is offered in a small, 3mm × 3mm, VSON-10 package, yielding a highly compact, total solution size.

The TPS748A-Q1 low-dropout (LDO) linear regulator provides an easy-to-use robust power management solution for a wide variety of applications. User-programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current on start-up. The soft-start is monotonic and designed for powering many different types of processors and application-specific integrated circuits (ASICs). The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility enables a solution to be configured that meets the sequencing requirements of many applications. Field-programmable gate arrays (FPGAs), digital signal processors (DSPs), and other applications with special start-up requirements are some examples that benefit from this complete flexibility.

A precision reference and error amplifier deliver 2% accuracy over load, line, temperature, and process. The device is stable with any type of capacitor greater than or equal to 2.2µF, and is fully specified for TJ = –40°C to +150°C. The TPS748A-Q1 is offered in a small, 3mm × 3mm, VSON-10 package, yielding a highly compact, total solution size.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 TPS748A-Q1 Automotive, 1.5A, Low-Dropout Linear Regulator With Programmable Soft-Start datasheet (Rev. B) PDF | HTML 2025/6/26
功能安全資訊 TPS748A-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2025/5/21
Product overview Mobileye EyeQ™6H – Discrete Power Tree PDF | HTML 2024/11/7

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開發板

TPS74801EVM-177 — TPS74801 LDO 線性穩壓器評估模組

TPS74801EVM-177 評估模組 (EVM) 是一個用於評估 TPS74801 超壓降線性穩壓器的平台。

TPS74801 需要低功耗偏壓 (VBIAS) 和電源輸入電壓 (VIN)。穩壓器可提供低至 0.8 V 的輸出電壓，並擁有整合式監控電路及開漏輸出，可在輸出電壓達到穩壓 [電源良好 (PG)] 時進入高阻抗狀態。TPS74801 可提供最高 1.5 A 的 DC 電流。

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TPS748A and TPS748A-Q1 PSpice Transient Model (Rev. A)

SBVM992A.ZIP (80 KB) - PSpice 模型
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參考設計

TIPA-020000 — Mobileye EyeQ™6H 電源供應設計

此電源設計是適用於 Mobileye EyeQ™6H SoC 的離散式電源樹狀結構測試報告摘要。自動駕駛輔助系統 (ADAS) 等汽車應用採用 Mobileye EyeQ™6H 等 ADAS 網域控制器處理器。這些精密的處理器需要在極低的電壓下具有非常高的電流。這些處理器也需要非常快速的輸出電壓暫態響應，以因應處理器負載電流的步進變化。此德州儀器設計以有效率、符合成本效益的方式滿足快速暫態響應的嚴格要求。

這種離散式方法可實現負載點轉換器最佳放置，同時仍可提供具最小輸出電容的小型設計尺寸。

多通道電壓監控器用於監控所有 SoC 相關的電源軌。電源排序可透過任何外部安全 MCU 實作。

此電源設計的 (...)

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