LT3505EMS8E#PBF

$6.06

Description：IC REG BUCK ADJ 1.2A 8MSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:682696cc691a Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK ADJ 1.2A 8MSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：3.6V
Voltage - Input (Max)：36V
Voltage - Output (Min/Fixed)：0.78V
Voltage - Output (Max)：33.84V
Current - Output：1.2A
Frequency - Switching：200kHz ~ 3.01MHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
Supplier Device Package：8-MSOP-EP

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LT3505EMS8E#PBF

Overview

The LT3505EMS8E#PBF is a current mode PWM step-down DC/DC converter featuring an internal 1.4A power switch. It operates with a wide input voltage range of 3.6V to 36V, with a maximum rating of 40V. The device provides up to 1.2A output current and supports adjustable output voltages down to 780mV. Switching frequency is resistor-programmable between 200kHz and 3MHz. It includes cycle-by-cycle current limit, soft-start, and low shutdown current below 2µA. The component is housed in a thermally enhanced, low profile 8-pin MSOP EP package.

Feature Summary

Integrates a 1.4A power switch for high-current step-down conversion
Supports wide input voltage ranges suitable for automotive and industrial sources
Features programmable switching frequency to optimize external component size or efficiency
Includes cycle-by-cycle current limiting and soft-start functionality

Applications

Regulating power from unregulated wall transformers
Power management for 24V industrial supplies
Automotive battery voltage regulation
Battery-powered systems requiring low shutdown current

Procurement Notes

Verify the specific suffix EMS8E#PBF against the manufacturer datasheet to confirm the MSOP-EP package and lead-free status. Ensure compatibility with the intended thermal design, as the device relies on exposed pad thermal dissipation. Confirm that the selected switching frequency programming resistor aligns with the required operating range of 200kHz to 3MHz for optimal performance.

Selection Notes

Select this component when a wide input voltage range up to 36V is required alongside high output current capability. It is suitable for designs needing flexible switching frequency adjustment to balance EMI and component size. Consider the 8-pin MSOP EP package for space-constrained applications requiring efficient thermal management through the exposed pad.

Part Context

The LT3505 belongs to Analog Devices' family of synchronous step-down switching regulators. It is designed for applications demanding robust protection features and high efficiency across varying load conditions. The device integrates essential control loops and protection mechanisms into a compact form factor, simplifying the design process for engineers developing compact power solutions.