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Product details

Parameters

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 (uVrms) 190 Iq (Typ) (mA) 0.017 Thermal resistance θJA (°C/W) 180 Load capacitance (Min) (µF) 4.7 Rating Catalog Regulated outputs (#) 1 Features Enable Accuracy (%) 3 PSRR @ 100 KHz (dB) 27 Dropout voltage (Vdo) (Typ) (mV) 48 Operating temperature range (C) -40 to 125 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 open-in-new Find other Linear regulators (LDO)

Features

  • 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
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Description

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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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 8
Type Title Date
* Datasheet Ultra Low-Power 50-mA Low-Dropout Linear Regulators datasheet (Rev. D) May 04, 2001
Application notes LDO Noise Demystified (Rev. B) Aug. 18, 2020
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Technical articles LDO basics: introduction to quiescent current Jun. 20, 2018
Application notes LDO PSRR Measurement Simplified (Rev. A) Aug. 09, 2017
Technical articles LDO basics: noise – part 1 Jun. 14, 2017
User guides DEM-SOT23LDO Demonstration Fixture User's Guide (Rev. A) Jun. 02, 2005

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
5
EVALUATION BOARDS Download
1146.54
Description
J6Entry, RSP and TDA2E-17 CPU Board EVM is an evaluation platform designed to speed up development efforts and reduce time to market for Infotainment  reconfigurable Digital Cluster or Integrated Digital Cockpit and ADAS applications. The CPU board integrates key peripherals such as parallel (...)
Features
  • 2GB DDR3L
  • LP8733/LP8732 Power Solution
  • On-board eMMC, NAND, NOR
  • USB3, USB2, PCIe, Ethernet, COM8Q, CAN, MLB, MicroSD and HDMI connectors
EVALUATION BOARDS Download
2324.44
Description

The J6Entry/RSP EVM is an evaluation platform designed to speed up development efforts and reduce time to market for applications such as Infotainment, reconfigurable Digital Cluster or Integrated Digital Cockpit.

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

Features
  • 10.1" Display with capacitive Touch
  • JAMR3 Radio Tuner Application Board
  • 2GB DDR3L
  • LP8733/LP8732 Power Solution
  • On-board eMMC, NAND, NOR
  • USB3, USB2, PCIe, Ethernet, COM8Q, CAN, MLB, MicroSD and HDMI connectors

Design tools & simulation

SIMULATION MODELS Download
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SLVM809.ZIP (21 KB) - PSpice Model
SIMULATION MODELS Download
SLVM810.ZIP (22 KB) - PSpice Model

Reference designs

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TIDM-AUX-MODULE 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 (...)
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3D Machine Vision Reference Design Based on AM572x Processor with DLP® Structured Light
TIDEP0076 — 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 of (...)
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Monte-Carlo Simulation on AM57x Using OpenCL for DSP Acceleration Reference Design
TIDEP0046 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 (...)
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Power and Thermal Design Considerations Using TI's AM57x Processor Reference Design
TIDEP0047 This TI Design (TIDEP0047) is a reference platform based on the AM57x processor and companion TPS659037 power management integrated circuit (PMIC).  This TI Design specifically highlights important power and thermal design considerations and techniques for systems designed with AM57x and (...)
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Bluetooth Low Energy for Energy Monitoring Reference Design
TIDC-BLE-METER-READING 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 (with (...)
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Three Output Smart Power Strip Reference Design
TIDM-3OUTSMTSTRP 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 (...)
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Low-Cost Three-Phase Electricity Meter Reference Design
TIDM-THREEPHASEMETER-F449 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 (...)
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Single-Phase Electricity Sub-Meter for Smart Buildings
TIDM-ENERGY-WATCHDOG 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 design (...)
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CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 5 View options

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