LM3553SD

$1.34

Description：DISPLAY DRIVER, PDSO12
Series：LM3553
Mfr：National Semiconductor
Package：Bulk

SKU:f7c20c18beca Category: LED Drivers IC Brand: National Semiconductor

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Product introduction

LM3553SD is listed in the LED Driver IC range at ChipApex. The manufacturer field lists National Semiconductor. Its product description is DISPLAY DRIVER, PDSO12. Review the specifications below when checking this part for your BOM.

LED Driver IC specifications for LM3553SD

Description：DISPLAY DRIVER, PDSO12
Series：LM3553
Mfr：National Semiconductor
Package：Bulk
Type：DC DC Regulator
Topology：Step-Up (Boost)
Internal Switch(s)：Yes
Number of Outputs：1
Voltage - Supply (Min)：2.7V
Voltage - Supply (Max)：5.5V
Voltage - Output：-
Current - Output / Channel：1.2A (Flash)
Frequency：1.2MHz
Dimming：I2C
Applications：Backlight, Camera Flash
Operating Temperature：-30°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：12-WFDFN Exposed Pad
Supplier Device Package：12-WSON (3x3)
Grade：-
Qualification：-

LED Driver IC datasheet and documents for LM3553SD

LM3553SD

LED Driver IC Overview

The LM3553SD is a dual flash LED driver system manufactured by National Semiconductor, now part of Texas Instruments. It provides a combined peak output current of 1.2A for driving dual flash LEDs. The device features an I2C-compatible interface for configuration and control. It operates within a frequency range of 1 MHz to 1.35 MHz and supports adjustable output voltage. The component is rated for a minimum operating temperature of -30°C.

LED Driver IC Feature Summary

Dual channel architecture designed specifically for high-current flash LED applications
I2C compatible digital interface for system control and parameter adjustment
Integrated switching regulator functionality with adjustable output capabilities

LED Driver IC Applications

Mobile phone camera flash systems
Portable electronic device illumination
Compact imaging module lighting

LED Driver IC Procurement Notes

Verify the manufacturer designation carefully, as National Semiconductor assets are managed by Texas Instruments. Confirm the specific suffix (SD) matches the required package type and pinout. Ensure compatibility with the host controller's I2C bus voltage levels and timing requirements before integration.

LED Driver IC Selection Notes

Select this component when a compact solution for dual flash LEDs is required. Consider the 1.2A total current limit and the I2C interface constraints. Evaluate thermal management needs given the power dissipation in small packages. Compare against single-channel drivers if only one flash is needed.

LED Driver IC Part Context

This part belongs to the LM3553 series of LED drivers. It is distinct from the LM3553SD-HALF variant, which may have different packaging or handling specifications. The series is designed for portable electronics requiring efficient flash lighting solutions.

LED Driver IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pin-to-pin compatibility with any alternative devices before substitution.

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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.