LT1129IQ-3.3#PBF - Analog Devices Inc.

Manufacturer Part Number

LT1129IQ-3.3#PBF

Manufacturer

analog-devices

Introduction

The LT1129IQ-3.3#PBF is a low dropout linear regulator designed for power management, offering efficient voltage regulation with minimal power loss.

Product Features and Performance

Low Dropout Voltage: 0.7V @ 700mA

Fixed Output Voltage: 3.3V

Maximum Input Voltage: 30V

Output Current Capability: 700mA

Quiescent Current: 70 µA

Supply Current (Max): 90 mA

Power Supply Rejection Ratio (PSRR): 64dB at 120Hz

Control Features include Enable Function

Protection against Over Temperature and Reverse Polarity

Operational Temperature Range: -40°C to 125°C

Mounting Type: Surface Mount

Package: TO-263-6, D2PAK (5 Leads + Tab), TO-263BA

Product Advantages

Low dropout voltage improves efficiency and allows for closer regulation to the desired output voltage.

The enable function allows for easy on/off control, conserving power when not in use.

Built-in protection features enhance the durability and reliability under abnormal conditions.

Low quiescent current reduces power waste when the device is in standby mode.

Key Technical Parameters

Voltage - Input (Max): 30V

Voltage - Output (Min/Fixed): 3.3V

Current - Output: 700mA

Voltage Dropout (Max): 0.7V @ 700mA

Current - Quiescent (Iq): 70 µA

PSRR: 64dB (120Hz)

Quality and Safety Features

Over Temperature Protection

Reverse Polarity Protection

Compatibility

The device is compatible with various circuits requiring stable 3.3V supply voltage within its current and temperature range.

Application Areas

Portable and battery-powered devices

Microcontroller power supply

Networking and telecom equipment

Consumer electronics

Product Lifecycle

Status: Active

The LT1129IQ-3.3#PBF is currently in active production with no indication of discontinuation. Analog Devices typically offers replacements or upgrades if a product is set for discontinuation.

Several Key Reasons to Choose This Product

High Efficiency: Minimizes power loss during conversion, making it ideal for battery-powered applications.

Robust Protection Features: Ensures longevity and reliability of both the regulator and the application it is used in.

Low Quiescent Current: Ideal for applications where minimizing standby power consumption is critical.

Flexible Compatibility: Suitable for a wide range of applications requiring a 3.3V power supply.

Active Lifecycle Status: Provides confidence in long-term availability for product designs.