IS31LT3353-STLS4-TR

$1.21

Description：IC LED DRVR RGLTR PWM 1A SOT23-5
Series：-
Mfr：Lumissil Microsystems
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:c2a53af4634f Category: LED Drivers IC Brand: Lumissil Microsystems

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Product introduction

Product Detailed Parameters

Description：IC LED DRVR RGLTR PWM 1A SOT23-5
Series：-
Mfr：Lumissil Microsystems
Package：Tape & Reel (TR),Cut Tape (CT)
Type：DC DC Regulator
Topology：Step-Down (Buck)
Internal Switch(s)：Yes
Number of Outputs：1
Voltage - Supply (Min)：6V
Voltage - Supply (Max)：40V
Voltage - Output：-
Current - Output / Channel：1A
Frequency：1MHz
Dimming：Analog, PWM
Applications：Lighting
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount
Package / Case：SC-74A, SOT-753
Supplier Device Package：SOT-23-5
Grade：-
Qualification：-

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IS31LT3353-STLS4-TR

Overview

The IS31LT3353-STLS4-TR is a continuous mode inductive step-down converter designed for driving single or multiple series-connected LEDs. It integrates an internal power switch and operates from a supply voltage range of 2.7V to 40V. The device supports PWM dimming control and includes built-in protections such as over-current, over-voltage, and thermal shutdown. Packaged in a compact SOT-23-6 format, it offers high efficiency for battery-powered and low-voltage LED lighting applications.

Feature Summary

Integrates an internal power switch for simplified circuit design
Supports PWM dimming control for brightness adjustment
Includes comprehensive protection features against over-current and thermal overload

Applications

Battery-powered portable LED lighting
Low-voltage general illumination systems
Series-connected LED string drivers

Procurement Notes

Verify the specific suffix STLS4-TR to confirm the tape-and-reel packaging quantity and moisture sensitivity level. Confirm RoHS compliance status with the manufacturer prior to final procurement decisions. Ensure the component meets the required operating temperature range for the intended application environment.

Selection Notes

Select this component when a compact solution for driving series LED strings from low input voltages is required. The integrated switch reduces external component count compared to discrete solutions. Verify that the load current requirements fall within the device's continuous mode operational limits.

Part Context

This part belongs to the Lumissil IS31LT33xx series of LED lighting driver ICs. These devices are engineered for high-efficiency power conversion in lighting applications. The series focuses on providing robust performance in small form factors suitable for consumer electronics and portable devices.

Replacement Considerations

Check for direct pin-compatible alternatives within the IS31LT33xx family. Verify if newer revisions of the same part number offer updated packaging or enhanced protection features before sourcing substitutes.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.