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線性與低壓差 (LDO) 穩壓器

TPS74801

現行

具電源良好與啟用功能的 1.5-A、低 VIN (0.8-V) 可調式低壓降 (LDO) 電壓穩壓器

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TPS748A 現行 具電源良好與啟用功能的 1.5-A 0.8-V 可調式低壓降 (LDO) 電壓穩壓器 Improved accuracy and noise

TPS74801

現行
產品規格表 立即訂購

產品詳細資料

Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 5.5 Vin (min) (V) 0.8 Vout (max) (V) 3.6 Vout (min) (V) 0.8 Noise (µVrms) 20 Iq (typ) (mA) 1 Thermal resistance θJA (°C/W) 36 Rating Catalog Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable, Power good, Soft start Accuracy (%) 2 PSRR at 100 KHz (dB) 28 Dropout voltage (Vdo) (typ) (mV) 60 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 5.5 Vin (min) (V) 0.8 Vout (max) (V) 3.6 Vout (min) (V) 0.8 Noise (µVrms) 20 Iq (typ) (mA) 1 Thermal resistance θJA (°C/W) 36 Rating Catalog Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable, Power good, Soft start Accuracy (%) 2 PSRR at 100 KHz (dB) 28 Dropout voltage (Vdo) (typ) (mV) 60 Operating temperature range (°C) -40 to 125
VQFN (RGW) 20 25 mm² 5 x 5 VSON (DRC) 10 9 mm² 3 x 3
  • V OUT range: 0.8 V to 3.6 V
  • Ultra-low V IN range: 0.8 V to 5.5 V
  • V BIAS range 2.7 V to 5.5 V
  • Low dropout: 60 mV typical at 1.5 A, V BIAS = 5 V
  • 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
  • V BIAS permits low V IN operation with good transient response
  • Stable with any output capacitor ≥ 2.2 µF
  • Available in small, 3-mm × 3-mm × 1-mm VSON-10 and 5-mm × 5-mm VQFN-20 packages
  • V OUT range: 0.8 V to 3.6 V
  • Ultra-low V IN range: 0.8 V to 5.5 V
  • V BIAS range 2.7 V to 5.5 V
  • Low dropout: 60 mV typical at 1.5 A, V BIAS = 5 V
  • 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
  • V BIAS permits low V IN operation with good transient response
  • Stable with any output capacitor ≥ 2.2 µF
  • Available in small, 3-mm × 3-mm × 1-mm VSON-10 and 5-mm × 5-mm VQFN-20 packages

The TPS748 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 ASICs. The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility allows a solution to be configured that meets the sequencing requirements of FPGAs, DSPs, and other applications with special start-up requirements.

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 2.2 µF, and is fully specified for T J = –40°C to +125°C. The TPS748 is offered in a small, 3-mm × 3-mm, VSON-10 package, yielding a highly compact, total solution size. The device is also available in a 5-mm × 5-mm VQFN-20 package for compatibility with the TPS744.

The TPS748 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 ASICs. The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility allows a solution to be configured that meets the sequencing requirements of FPGAs, DSPs, and other applications with special start-up requirements.

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 2.2 µF, and is fully specified for T J = –40°C to +125°C. The TPS748 is offered in a small, 3-mm × 3-mm, VSON-10 package, yielding a highly compact, total solution size. The device is also available in a 5-mm × 5-mm VQFN-20 package for compatibility with the TPS744.
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類型 標題 日期
* Data sheet TPS748 1.5-A, Low-Dropout Linear Regulator With Programmable Soft-Start datasheet (Rev. M) PDF | HTML 2023年 4月 24日
EVM User's guide TPS74701EVM-177, TPS74801EVM-177 Evaluation Module (Rev. B) PDF | HTML 2023年 5月 8日
Application note LDO Noise Demystified (Rev. B) PDF | HTML 2020年 8月 18日
Application note Point-of-Load Solutions for Data Center App Implementing VR13.HC Vccin Spec (Rev. A) PDF | HTML 2020年 1月 8日
Application note A Topical Index of TI LDO Application Notes (Rev. F) 2019年 6月 27日
Application note Extracting a Lumped Output Impedance Model With SIMPLIS or SiMetrix 2018年 6月 11日
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 2018年 3月 21日
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 2017年 8月 9日
Application note Power Solution using LDO's (Rev. A) 2010年 3月 25日
Application note Simple Power Solution Using LDOs for the DM365 (Rev. A) 2009年 9月 11日
Application note Simple Power Solution Using LDOs for the DM365 2009年 8月 4日
Application note Simple Power Solution Using LDOs For TMS320C2834x MCU 2009年 7月 24日
Analog Design Journal Q3 2007 Issue Analog Applications Journal 2007年 8月 10日
Analog Design Journal Simultaneous power-down sequencing with the TPS74x01 family of linear regulators 2007年 8月 10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

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The main CPU board integrates these key peripherals such as Ethernet or HDMI, while (...)

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開發板

LP-AM263 — AM263x Arm® 架構 MCU 通用型 LaunchPad™ 開發套件

LP AM263 為 AM263x 系列的 Sitara™ 高性能微控制器 (MCU) 的成本最佳化開發電路板。此電路板極適用於初始評估與原型，因為它提供標準化且使用方便的平台，可用於開發您的下一個應用程式。

LP AM263 配備了 Sitara AM2634 處理器及其他零組件，可讓使用者使用各種裝置介面，其中包括工業乙太網路 (IE)、標準乙太網路、快速序列介面 (FSI) 及其他功能，可用於輕鬆建立原型。AM2634 支援各種 IE 協定如 EtherCAT、EtherNet/IP 和 PROFINET®。

此延伸 LaunchPad™ XL 開發套件提供額外的 I/O (...)

使用指南: PDF | HTML
TI.com 無法提供
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。

使用指南: PDF | HTML
TI.com 無法提供
開發板

TUSB4020BPHPEVM — TUSB4020BPHPEVM 評估模組

The Texas Instruments TUSB4020B evaluation module is a functional board design of a single device that implements a USB 2.0 hub. The EVM can support USB 2.0 (HS, FS, and LS) operation on its USB ports. This EVM is intended for use in evaluating system compatibility, developing optional EEPROM (...)

使用指南: PDF
TI.com 無法提供
開發板

TUSB4041PAPEVM — TUSB4041PAPEVM 評估模組

The TUSB4041PAPEVM operates as a functional interconnect between an upstream connection to a USB host or hub and up to four directly connected downstream devices or hubs. More devices and hubs can be supported if arranged in tiers. The TUSB4041PAPEVM is capable of supporting operation at High-Speed (...)

使用指南: PDF
TI.com 無法提供
開發板

TUSB8044AEVM — 具有 USB 告示板的四埠 USB 3.2 gen 1 集線器評估模組

The TUSB8044A evaluation module (EVM) is a functional board design of a single device that implements both a USB 3.2 Gen 1 x 1 hub and a USB 2.0 hub with Billboard. The EVM can support both SuperSpeed (SS) and USB 2.0 (HS, FS, and LS) operation on its USB ports. This EVM is intended for use in (...)
使用指南: PDF
TI.com 無法提供
模擬型號

TPS74801 PSpice Transient Model (Rev. B)

SLIM032B.ZIP (58 KB) - PSpice Model
下載
模擬型號

TPS74801 TINA-TI Transient Reference Design

SLIM255.TSC (94 KB) - TINA-TI Reference Design
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模擬型號

TPS74801 TINA-TI Transient Spice Model

SLIM254.ZIP (34 KB) - TINA-TI Spice Model
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模擬型號

TPS74801 Unencrypted PSpice Transient Model

SBVM633.ZIP (3 KB) - PSpice Model
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配置圖

12Vin Power Design (Rev. A)

SLVR334A.PDF (253 KB)
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參考設計

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Design guide: PDF
電路圖: PDF
參考設計

TIDA-00887 — 具有電池短路保護的車用 2.4A 雙連接埠 USB 集線器參考設計

The TIDA-00887 is comprised of a two-port USB 2.0 hub with short-to-battery (STB) and short-circuit protection on both downstream ports provided by the TPD3S716-Q1. Both downstream ports are configured either as a custom divider mode or a dedicated charging port (DCP) provided by the TUSB4020BI-Q1 (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDEP0046 — 基於 AM57x 使用 OpenCL 進行 DSP 加速的 Monte-Carlo 模擬參考設計

TI’s high performance ARM® Cortex®-A15 based AM57x processors also integrate C66x DSPs. These DSPs were designed to handle high signal and data processing tasks that are often required by industrial, automotive and financial applications. The AM57x OpenCL implementation makes it easy (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDEP0047 — 採用 TI AM57x 處理器參考設計的電源和熱能設計考量

This is a reference design based on the AM57x processor and companion TPS659037 power management integrated circuit (PMIC).  This design specifically highlights important power and thermal design considerations and techniques for systems designed with AM57x and TPS659037.  It includes (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00845 — 具有電池短路保護的雙連接埠車用 USB 2.0 集線器參考設計

TIDA-00845 is a dual-port USB 2.0 hub with the ability to withstand a short of up to 18-V DC on both downstream ports, as well as Level 4 IEC 61000-4-2 ESD protection, overcurrent conditions, and shorts to ground. This protection is provided by an integrated protection device - the (...)
Design guide: PDF
電路圖: PDF
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