LT3509EDE#PBF - Analog Devices Inc.

Manufacturer Part Number

LT3509EDE#PBF

Manufacturer

Analog Devices

Introduction

Dual Channel, Adjustable Step-Down Switching Regulator

Product Features and Performance

Adjustable Output Voltage from 0.8V to 34.2V

Dual Outputs with 700mA Current Capacity Each

Wide Input Voltage Range of 3.6V to 36V

Selectable Switching Frequency from 260kHz to 2.15MHz

Thermal Shutdown Protection

Under-Voltage Lockout (UVLO)

Cycle-by-Cycle Current Limit

No Synchronous Rectifier Required

Product Advantages

High Efficiency for Power Saving

Low Shutdown Current for Minimized Power Loss when Idle

Stable with Low ESR Ceramic Output Capacitors

Soft-Start Function Limits Inrush Current during Start-Up

Key Technical Parameters

Voltage - Input (Min): 3.6V

Voltage - Input (Max): 36V

Voltage - Output (Min): 0.8V

Voltage - Output (Max): 34.2V

Current - Output: 700mA

Frequency - Switching: 260kHz ~ 2.15MHz

Topology: Buck (Step-Down)

Number of Outputs: 2

Quality and Safety Features

Thermal Shutdown

Over-Current Protection

Under-Voltage Lockout

Lead Free and RoHS Compliant

Compatibility

Compatible with Ceramic and Tantalum Capacitors

Suitable for Surface Mount Technology (SMT)

Application Areas

Automotive Electronics

Industrial Power Supplies

Telecommunications Infrastructure

Portable Devices

Computer Peripherals

Product Lifecycle

Active Status

Standard Longevity

Not Indicated as Near Discontinuation

Several Key Reasons to Choose This Product

Dual Independent Outputs for Multiple Voltage Rails

Flexible and High-Performance Solution for Wide Range of Input Voltages

Ability to Handle High Transient Conditions

Efficient Power Conversion for Thermal Management

User Configurable Switching Frequency for Design Flexibility

Suitable for Harsh Operating Environments due to its Wide Operating Temperature Range

Provided in a Compact 14-WFDFN Exposed Pad Package for Space-Sensitive Applications