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線性與低壓差 (LDO) 穩壓器

TPS770

現行

50-mA、10-V、低 IQ 低壓降電壓穩壓器

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產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
此產品將繼續向現有客戶提供。新設計應考量替代產品。
可直接投入的替代產品，相較於所比較的裝置，具備升級功能
TPS769 現行 具有啟用功能的 100-mA、10-V、低 IQ、低壓差電壓穩壓器 Higher Iout
功能相同，但引腳輸出與所比較的裝置不同
TLV767 現行 可調節和固定輸出、1-A、16-V 正電壓低壓降 (LDO) 線性穩壓器 Alternative product offering better accuracy, better PSRR, lower Iq and wider input voltage
TPS7A24 現行 具啟用功能的 200mA、18V、超低 IQ 低壓差 (LDO) 電壓穩壓器 SOT-23-5 package option offering wider VIN (18 V) and ultra-low-IQ (2 µA)

TPS770

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) 0.05 Vin (max) (V) 10 Vin (min) (V) 2.7 Vout (max) (V) 5.5 Vout (min) (V) 1.2 Fixed output options (V) 1.2, 1.5, 1.8, 2.5, 2.7, 2.8, 3, 3.3, 5 Noise (µVrms) 190 Iq (typ) (mA) 0.017 Thermal resistance θJA (°C/W) 180 Rating Catalog Load capacitance (min) (µF) 4.7 Regulated outputs (#) 1 Features Enable Accuracy (%) 3 PSRR at 100 KHz (dB) 27 Dropout voltage (Vdo) (typ) (mV) 48 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 0.05 Vin (max) (V) 10 Vin (min) (V) 2.7 Vout (max) (V) 5.5 Vout (min) (V) 1.2 Fixed output options (V) 1.2, 1.5, 1.8, 2.5, 2.7, 2.8, 3, 3.3, 5 Noise (µVrms) 190 Iq (typ) (mA) 0.017 Thermal resistance θJA (°C/W) 180 Rating Catalog Load capacitance (min) (µF) 4.7 Regulated outputs (#) 1 Features Enable Accuracy (%) 3 PSRR at 100 KHz (dB) 27 Dropout voltage (Vdo) (typ) (mV) 48 Operating temperature range (°C) -40 to 125
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • 50-mA Low-Dropout Regulator
  • Available in 1.2-V, 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V, 3.0-V, 3.3-V, and 5-V Fixed-Output and Adjustable Versions
  • Only 17 uA Quiescent Current at 50 mA
  • 1 uA Quiescent Current in Standby Mode
  • Dropout Voltage Typically 35 mV at 50 mA
  • Over Current Limitation
  • \x9640°C to 125°C Operating Junction Temperature Range
  • 5-Pin SOT-23 (DBV) Package
  • 50-mA Low-Dropout Regulator
  • Available in 1.2-V, 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V, 3.0-V, 3.3-V, and 5-V Fixed-Output and Adjustable Versions
  • Only 17 uA Quiescent Current at 50 mA
  • 1 uA Quiescent Current in Standby Mode
  • Dropout Voltage Typically 35 mV at 50 mA
  • Over Current Limitation
  • \x9640°C to 125°C Operating Junction Temperature Range
  • 5-Pin SOT-23 (DBV) Package

The TPS770xx family of low-dropout (LDO) voltage regulators offers the benefits of low dropout voltage, ultralow-power operation, and miniaturized packaging. These regulators feature low dropout voltages and ultralow quiescent current compared to conventional LDO regulators. Offered in a 5-terminal small outline integrated-circuit SOT-23 package, the TPS770xx series devices are ideal for micropower operations and where board space is at a premium.

A combination of new circuit design and process innovation has enabled the usual PNP pass transistor to be replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is very low \x97 typically 35 mV at 50 mA of load current (TPS77050) \x97 and is directly proportional to the load current. Since the PMOS pass element is a voltage-driven device, the quiescent current is ultralow (28 uA maximum) and is stable over the entire range of output load current (0 mA to 50 mA). Intended for use in portable systems such as laptops and cellular phones, the ultralow-dropout voltage feature and ultralow-power operation result in a significant increase in system battery operating life.

The TPS770xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current to 1 uA typical at TJ = 25°C. The TPS770xx is offered in 1.2-V, 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V, 3.0-V, 3.3-V, and 5-V fixed-voltage versions and in a variable version (programmable over the range of 1.2 V to 5.5 V).

The TPS770xx family of low-dropout (LDO) voltage regulators offers the benefits of low dropout voltage, ultralow-power operation, and miniaturized packaging. These regulators feature low dropout voltages and ultralow quiescent current compared to conventional LDO regulators. Offered in a 5-terminal small outline integrated-circuit SOT-23 package, the TPS770xx series devices are ideal for micropower operations and where board space is at a premium.

A combination of new circuit design and process innovation has enabled the usual PNP pass transistor to be replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is very low \x97 typically 35 mV at 50 mA of load current (TPS77050) \x97 and is directly proportional to the load current. Since the PMOS pass element is a voltage-driven device, the quiescent current is ultralow (28 uA maximum) and is stable over the entire range of output load current (0 mA to 50 mA). Intended for use in portable systems such as laptops and cellular phones, the ultralow-dropout voltage feature and ultralow-power operation result in a significant increase in system battery operating life.

The TPS770xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current to 1 uA typical at TJ = 25°C. The TPS770xx is offered in 1.2-V, 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V, 3.0-V, 3.3-V, and 5-V fixed-voltage versions and in a variable version (programmable over the range of 1.2 V to 5.5 V).
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類型 標題 日期
* Data sheet Ultra Low-Power 50-mA Low-Dropout Linear Regulators datasheet (Rev. D) 2001年 5月 4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
User guide DEM-SOT23LDO Demonstration Fixture User's Guide (Rev. A) 2005年 6月 2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-SOT23LDO — 採用 5 條或 6 條導線 SOT23 (DBV) 封裝且與最大正輸出 LDO 穩壓器相容的 DEM-SOT23LDO

使用指南: PDF
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模擬型號

TPS77012 PSpice Transient Model

SLVM803.ZIP (21 KB) - PSpice Model
下載
模擬型號

TPS77018 PSpice Transient Model

SLVM805.ZIP (22 KB) - PSpice Model
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模擬型號

TPS77025 PSpice Transient Model

SLVM806.ZIP (22 KB) - PSpice Model
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模擬型號

TPS77028 PSpice Transient Model

SLVM808.ZIP (21 KB) - PSpice Model
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模擬型號

TPS77030 PSpice Transient Model

SLVM809.ZIP (21 KB) - PSpice Model
下載
模擬型號

TPS77033 PSpice Transient Model

SLVM810.ZIP (22 KB) - PSpice Model
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模擬型號

TPS77050 PSpice Transient Model

SLVM795.ZIP (22 KB) - PSpice Model
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參考設計

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The TIDEP0076 3D machine vision design describes an embedded 3D scanner based on the structured light principle. A digital camera along with a Sitara™ AM57xx processor System on Chip (SoC)  is used to capture reflected light patterns from a DLP4500-based projector. Subsquent processing (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDM-METROLOGY-HOST — 具有隔離能量量測的單相電錶

Electric meter developers often prefer to separate the energy measurement function from the host processor functions such as ANSI/IEC data tables, DLMS/COSEM, tariff management, and communications. This design demonstrates a method for keeping these meter functions separated by using an individual (...)
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

TIDC-BLE-METER-READING — 適用於能源監測的 Bluetooth 低耗能參考設計

The TIDC-BLE-METER-READING reference design focuses on an application for reading an energy monitor device over a Bluetooth® low energy (BLE) link using the SimpleLink™ CC2650 multi-standard wireless MCU and corresponding SensorTag module. The module is then connected to the hardware (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDM-AUX-MODULE — 電錶的電池管理及輔助電源選項

Smart electric meters are required to maintain normal operation for a short period of time after the electric grid fails. This reference design details methods by which designers can meet this requirement when using an advanced, smart meter MCU. Designers can use this design to evaluate options for (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDM-3OUTSMTSTRP — 三輸出智慧電源插座參考設計

This design implements a high accuracy single phase embedded metering smart power strip application using an MSP430 MCU. Built to support of measuring AC voltage, current, active power, reactive power, apparent power, frequency, power factor with 3 socket measured individually. Additional hardware (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDM-THREEPHASEMETER-F449 — 低成本三相電錶參考設計

The design implements a basic three-phase electric meter system using the MSP430F449 smart meter SoC, the LMV324 precision op amps, and TPS76333 LDO regulator . It meets all of the requirements for ANSI C12.20 and IEC-62053 Class 0.5 meters.The MSP430F449 SoC is a low-cost option for engineers (...)
電路圖: PDF
參考設計

TIDM-ENERGY-WATCHDOG — 適用於智慧建築的單相電力分表

The Energy Watchdog design is a complete tool used to measure and display the energy consumption of an individual load in a smart building such as major home appliances. With this tool engineers can quickly evaluate TI’s solution a low-cost energy measurement application. This reference (...)
Test report: PDF
電路圖: PDF
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SOT-23 (DBV) 5 Ultra Librarian
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