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線性與低壓差 (LDO) 穩壓器

REG102

現行

具啟用功能的 250-mA、10-V、低壓差電壓穩壓器

立即訂購
產品規格表

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LP2992 現行 具啟用功能的 250-mA、16-V、低壓差電壓穩壓器 Wider voltage range
TPS7A25 現行 具有電源良好功能的 300mA、18V、超低 IQ、高準確度、可調整低壓差電壓穩壓器 Wider voltage range

REG102

現行
產品規格表 立即訂購

產品詳細資料

Output options Adjustable Output, Fixed Output Iout (max) (A) 0.25 Vin (max) (V) 10 Vin (min) (V) 2.2 Vout (max) (V) 5.5 Vout (min) (V) 2.5 Fixed output options (V) 2.5, 2.8, 2.85, 3, 3.3, 5, 5.5 Rating Catalog Noise (µVrms) 28 PSRR at 100 KHz (dB) 46 Iq (typ) (mA) 0.4 Thermal resistance θJA (°C/W) 150 Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 150 Operating temperature range (°C) -40 to 85
Output options Adjustable Output, Fixed Output Iout (max) (A) 0.25 Vin (max) (V) 10 Vin (min) (V) 2.2 Vout (max) (V) 5.5 Vout (min) (V) 2.5 Fixed output options (V) 2.5, 2.8, 2.85, 3, 3.3, 5, 5.5 Rating Catalog Noise (µVrms) 28 PSRR at 100 KHz (dB) 46 Iq (typ) (mA) 0.4 Thermal resistance θJA (°C/W) 150 Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 150 Operating temperature range (°C) -40 to 85
SOIC (D) 8 29.4 mm² 4.9 x 6 SOT-223 (DCQ) 6 45.89 mm² 6.5 x 7.06 SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • NEW DMOS TOPOLOGY:
       Ultra Low Dropout Voltage:
         150mV typ at 250mA
         Output capacitor not Required for Stability
  • FAST TRANSIENT RESPONSE
  • VERY LOW NOISE: 28 µVrms
  • HIGH ACCURACY: ±1.5% max
  • HIGH EFFICIENCY:
       IGND = 600 µA at IOUT = 250mA
       Not Enabled: IGND = 0.01 µA
  • 2.5V, 2.8V, 2.85V, 3.0V, 3.3V, 5.0V AND ADJUSTABLE OUTPUT VERSIONS
  • OTHER OUTPUT VOLTAGES AVAILABLE UPON REQUEST
  • FOLDBACK CURRENT LIMIT
  • THERMAL PROTECTION
  • SMALL SURFACE-MOUNT PACKAGES:
       SOT23-5, SOT223-5, and SO-8
  • APPLICATIONS
    • PORTABLE COMMUNICATION DEVICES
    • BATTERY-POWERED EQUIPMENT
    • PERSONAL DIGITAL ASSISTANTS
    • MODEMS
    • BAR-CODE SCANNERS
    • BACKUP POWER SUPPLIES

All trademarks are the property of their respective owners.
  • NEW DMOS TOPOLOGY:
       Ultra Low Dropout Voltage:
         150mV typ at 250mA
         Output capacitor not Required for Stability
  • FAST TRANSIENT RESPONSE
  • VERY LOW NOISE: 28 µVrms
  • HIGH ACCURACY: ±1.5% max
  • HIGH EFFICIENCY:
       IGND = 600 µA at IOUT = 250mA
       Not Enabled: IGND = 0.01 µA
  • 2.5V, 2.8V, 2.85V, 3.0V, 3.3V, 5.0V AND ADJUSTABLE OUTPUT VERSIONS
  • OTHER OUTPUT VOLTAGES AVAILABLE UPON REQUEST
  • FOLDBACK CURRENT LIMIT
  • THERMAL PROTECTION
  • SMALL SURFACE-MOUNT PACKAGES:
       SOT23-5, SOT223-5, and SO-8
  • APPLICATIONS
    • PORTABLE COMMUNICATION DEVICES
    • BATTERY-POWERED EQUIPMENT
    • PERSONAL DIGITAL ASSISTANTS
    • MODEMS
    • BAR-CODE SCANNERS
    • BACKUP POWER SUPPLIES

All trademarks are the property of their respective owners.

The REG102 is a family of low-noise, low-dropout linear regulators with low ground pin current. Its new DMOS topology provides significant improvement over previous designs, including low-dropout voltage (only 150mV typ at full load), and better transient performance. In addition, no output capacitor is required for stability, unlike conventional low-dropout regulators that are difficult to compensate and require expensive low ESR capacitors greater than 1µF.

Typical ground pin current is only 600µA (at IOUT = 250mA) and drops to 10nA when not enabled. Unlike regulators with PNP pass devices, quiescent current remains relatively constant over load variations and under dropout conditions.

The REG102 has very low output noise (typically 28µVrms for VOUT = 3.3V with CNR = 0.01µF), making it ideal for use in portable communications equipment. On-chip trimming results in high output voltage accuracy. Accuracy is maintained over temperature, line, and load variations. Key parameters are tested over the specified temperature range (–40°C to +85°C).

The REG102 is well protected—internal circuitry provides a current limit that protects the load from damage; furthermore, thermal protection circuitry keeps the chip from being damaged by excessive temperature. The REG102 is available in the SOT23-5, SOT223-5, and SO-8 packages.

The REG102 is a family of low-noise, low-dropout linear regulators with low ground pin current. Its new DMOS topology provides significant improvement over previous designs, including low-dropout voltage (only 150mV typ at full load), and better transient performance. In addition, no output capacitor is required for stability, unlike conventional low-dropout regulators that are difficult to compensate and require expensive low ESR capacitors greater than 1µF.

Typical ground pin current is only 600µA (at IOUT = 250mA) and drops to 10nA when not enabled. Unlike regulators with PNP pass devices, quiescent current remains relatively constant over load variations and under dropout conditions.

The REG102 has very low output noise (typically 28µVrms for VOUT = 3.3V with CNR = 0.01µF), making it ideal for use in portable communications equipment. On-chip trimming results in high output voltage accuracy. Accuracy is maintained over temperature, line, and load variations. Key parameters are tested over the specified temperature range (–40°C to +85°C).

The REG102 is well protected—internal circuitry provides a current limit that protects the load from damage; furthermore, thermal protection circuitry keeps the chip from being damaged by excessive temperature. The REG102 is available in the SOT23-5, SOT223-5, and SO-8 packages.
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技術文件

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類型 標題 日期
* Data sheet DMOS 250mA Low-Dropout Regulator datasheet (Rev. F) 2005年 9月 8日
Application note LDO Noise Demystified (Rev. B) PDF | HTML 2020年 8月 18日
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 2017年 8月 9日
Application note Packaging Limits Range of Linear Regulators 2010年 5月 8日
User guide DEM-SOT23LDO Demonstration Fixture User's Guide (Rev. A) 2005年 6月 2日
User guide DEM-SOT223LDO Demonstration Fixture 2003年 10月 15日
More literature DMOS Delivers Dramatic Performance Gains to LDO Regulators (EDN mag) 2001年 2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

DEM-SOT223LDO — 採用 SOT223 (DCQ) 封裝與最大正輸出 LDO 相容的 DEM-SOT223LDO

The Texas Instruments DEM-SOT223LDO demonstration module (DEM) helps designers evaluate the operation and performance of Texas Instruments low-dropout regulators (LDOs).  This module is compatible with most positive output LDOs offered in the SOT223 (DCQ) package.

使用指南: PDF
TI.com 無法提供
開發板

TPS76901EVM-127 — SOT-23 LDO、5-V 至 1.8-V、100-mA 輸出電源

The TPS76901EVM-127 evaluation module (EVM) provides designers with an easy layout for using and evaluating the TPS76901 SOT-23 LDO in an application to regulate from 5 V to a selectable output. The EVM includes input and output capacitors.

使用指南: PDF
TI.com 無法提供
開發板

TPS76933EVM-127 — 適用於具有 5-V 至 3.3-V 輸出電源供應器之 SOT-23 LDO 電壓穩壓器的 TPS76933 評估模組

TPS76933EVM-127 評估模組 (EVM) 可為設計人員提供簡易佈局，以使用和評估應用中的 TPS76933 SOT-23 LDO，藉此從 5 V 調節至 3.3-V 輸出。此 EVM 包括輸入與輸出電容器。

使用指南: PDF
TI.com 無法提供
開發板

TPS79301EVM — TPS79301 評估模組

使用指南: PDF
TI.com 無法提供
開發板

TPS79328EVM — TPS79328 評估模組

The purpose of this EVM is to facilitate evaluation of the TPS793xx family of LDO regulators. Each EVM package contains one SLVP191 test board, with either a TPS79301DBV linear regulator or a TPS79328DBV linear regulator, as well as supporting passive components. The TPS79301DBV adjustable device (...)

使用指南: PDF
TI.com 無法提供
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 8 Ultra Librarian
SOT-223 (DCQ) 6 Ultra Librarian
SOT-23 (DBV) 5 Ultra Librarian
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