LT1963AEST-3.3#PBF - Analog Devices Inc.

Manufacturer Part Number

LT1963AEST-3.3#PBF

Manufacturer

analog-devices

Introduction

The LT1963AEST-3.3#PBF is a high-performance, low dropout linear regulator designed for power management applications requiring low voltage and high current, part of Analog Devices' comprehensive range of Power Management ICs.

Product Features and Performance

Fixed 3.3V output voltage

Low dropout voltage of 0.55V at 1.5A output current

High output current capacity of 1.5A

Low quiescent current of 1.5 mA

Excellent power supply rejection ratio (PSRR) of 63dB at 120Hz

Enable control feature for power optimization

Provides protection against over current, over temperature, and reverse polarity

Product Advantages

High-efficiency due to low dropout design

Stable output with excellent PSRR for noise-sensitive applications

Low quiescent current improves battery life in portable devices

Robust protection enhances product reliability

Ease of use with enable control feature

Key Technical Parameters

Voltage - Input (Max): 20V

Voltage - Output (Min/Fixed): 3.3V

Current - Output: 1.5A

Voltage Dropout (Max): 0.55V @ 1.5A

Current - Quiescent (Iq): 1.5 mA

PSRR: 63dB (120Hz)

Quality and Safety Features

Over current protection

Over temperature protection

Reverse polarity protection

Compatibility

Surface mount technology for broad compatibility with PCB designs

SOT-223-3 package compatible with various board layouts

Application Areas

Portable electronic devices

Microprocessor power supplies

Post-regulation applications

Battery-powered equipment

Product Lifecycle

Active status, ensuring ongoing production and availability

Not nearing discontinuation, with replacements or upgrades not immediately necessary

Several Key Reasons to Choose This Product

High performance with low dropout voltage for energy efficiency

Robust protection features ensure long term reliability

Low quiescent current beneficial for battery-powered applications

Excellent PSRR for noise-sensitive circuits

Active product lifecycle status guarantees availability for new designs