TPS70445PWP

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TPS70445PWP

IC REG LINEAR 3.3V/1.2V 24HTSSOP

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規格

Package Tube
ProductStatus Active
OutputConfiguration Positive
OutputType Fixed
NumberofRegulators 2
Voltage-Input(Max) 6V
Voltage-Output(Min/Fixed) 3.3V, 1.2V
VoltageDropout(Max) 0.25V @ 1A, -
Current-Output 1A, 2A
Current-Quiescent(Iq) 250 µA
PSRR 65dB (1kHz), 60dB (1kHz)
ControlFeatures Enable, Power Good, Reset, Sequencing
ProtectionFeatures Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)
OperatingTemperature -40°C ~ 125°C
MountingType Surface Mount
Package/Case 24-TSSOP (0.173, 4.40mm Width) Exposed Pad

概述

Description

The TPS70445PWP is a dual-output, low-dropout (LDO) voltage regulator designed by Texas Instruments. It is part of the TPS704xx family, which is known for high-performance power management solutions. This particular model features one fixed output and one adjustable output, suitable for various applications requiring stable voltage regulation.
The device is equipped with several features that enhance its performance, such as low dropout voltage, low noise, and fast transient response, making it ideal for powering sensitive electronics. It also includes a range of protection features like over-current protection, thermal shutdown, and undervoltage lockout, ensuring reliability and safety in various operational conditions.
The TPS70445PWP comes in a 20-pin PowerPAD™ package, which facilitates efficient heat dissipation. Its flexibility and robustness make it suitable for use in telecommunications, computing, and industrial applications where precise power management is crucial.
Overall, the TPS70445PWP is valued for its efficiency, reliability, and versatility, serving as a critical component in circuits requiring dual-voltage regulation.

Features

The TPS70445PWP is a dual-output low-dropout (LDO) voltage regulator featuring high power supply regulation and low noise. Key features include:
1. Dual Outputs: It provides two independently adjustable output voltages, suitable for powering multiple components from a single device.
2. Low Dropout Voltage: The regulator offers a low dropout voltage, enabling efficient operation with low input-to-output voltage differentials.
3. High Accuracy: It ensures precise output voltage regulation with tight accuracy, beneficial for sensitive applications.
4. Current Capability: The device supports up to 250 mA on one output and 1 A on the other, making it suitable for a range of current demands.
5. Low Output Noise: Designed to minimize output voltage noise, it is ideal for noise-sensitive circuitry.
6. Power Dissipation: The device is capable of handling significant power dissipation, facilitated by features like internal thermal protection.
7. Protection Features: It includes built-in protection against overcurrent and thermal overload conditions, enhancing reliability and safety.
8. Package: Available in a PowerPAD™ package, which improves thermal performance.
These features make the TPS70445PWP suitable for a variety of applications, including those in telecommunications, computing, and consumer electronics.

Package

The TPS70445PWP is a dual-output low-dropout (LDO) voltage regulator from Texas Instruments. It comes in a PowerPAD™ TSSOP (Thin Shrink Small Outline Package) with 20 pins, designated as the PWP package type. This package is designed for efficient heat dissipation.

Pinout

The TPS70445PWP is a dual output low-dropout (LDO) voltage regulator with integrated supervisory and reset functions, produced by Texas Instruments. It comes in a 20-pin package. The device is designed to offer high accuracy and fast transient response for power-sensitive applications.
Key functions of the TPS70445PWP include:
1. Dual Output Regulation: It provides two regulated output voltages, making it suitable for systems requiring multiple supply voltages.
2. LDO Performance: Offers low dropout voltage, ensuring efficient power regulation even with small headroom between input and output voltages.
3. Supervisory Functions: The device includes power-up reset delay circuitry to ensure proper power sequencing.
4. Power-On Reset: It generates a reset signal on power-up until the output voltages are within specifications.
5. Precision Voltage Reference: Ensures high accuracy of the output voltages.
This combination of features makes the TPS70445PWP suitable for complex digital systems, including processors and other logic circuits needing stable and precise power supplies.

Manufacturer

The TPS70445PWP is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a wide range of electronic components, including integrated circuits and various semiconductor devices. Founded in 1930 and headquartered in Dallas, Texas, TI is known for its innovation in the electronics industry, particularly in the areas of analog and embedded processing products. The company serves numerous markets, including automotive, industrial, personal electronics, and communications equipment, providing essential components that enable modern electronic systems.

Application

The TPS70445PWP is a dual-output, low-dropout (LDO) voltage regulator often used in applications requiring stable power supplies. It is commonly found in telecommunications, networking equipment, and industrial automation systems. Its ability to provide two different output voltages makes it suitable for powering microcontrollers, DSPs, and other digital logic circuits needing multiple voltage levels. Additionally, it is used in consumer electronics, medical devices, and embedded systems where space-saving power solutions are necessary.

Equivalent

The TPS70445PWP is a dual-output low-dropout (LDO) voltage regulator with one fixed and one adjustable output, manufactured by Texas Instruments. Equivalent products could include dual-output LDOs from other manufacturers, such as:
1. LT1963A from Analog Devices
2. MIC29302 from Microchip Technology
3. LM317/LM337 pair from various manufacturers for adjustable applications
Ensure compatibility regarding input/output voltage and current specifications when considering alternatives.

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