FAN5333BSX

$1.23

Description：IC LED DRV RGLTR PWM SOT23-5
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:f517f32778b3 Category: LED Drivers IC Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：IC LED DRV RGLTR PWM SOT23-5
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)
Type：DC DC Regulator
Topology：Step-Up (Boost)
Internal Switch(s)：Yes
Number of Outputs：1
Voltage - Supply (Min)：1.8V
Voltage - Supply (Max)：5.5V
Voltage - Output：30V
Current - Output / Channel：1.5A (Switch)
Frequency：1.5MHz
Dimming：Analog, PWM
Applications：Backlight
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：SC-74A, SOT-753
Supplier Device Package：SOT-23-5
Grade：-
Qualification：-

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FAN5333BSX

Overview

The FAN5333BSX is a high-efficiency, high-current serial LED driver manufactured by onsemi. It features fixed-frequency PWM operation and an integrated FET switch with a 30V rating. The device supports up to 1.5A peak switch current and delivers 1.5W output power capability. It operates at a switching frequency of 1.5MHz to minimize noise. Key electrical parameters include a feedback voltage of 315mV, shutdown current less than 1µA, and an operating temperature range from -40°C to +85°C. It is housed in a 5-lead SOT-23 package.

Feature Summary

Integrated 30V FET switch for serial LED driving
Fixed-frequency PWM operation at 1.5MHz
Ultra-low shutdown current below 1µA
Built-in thermal shutdown and over-voltage protection

Applications

Cell phones
PDAs
Handheld equipment
Display bias
Flash LED

Procurement Notes

Verify the specific suffix 'BSX' against official datasheets to confirm the 315mV feedback voltage characteristic, as variants exist with different feedback thresholds. Confirm RoHS compliance status through manufacturer documentation prior to ordering. Ensure the SOT-23-5 package dimensions match PCB layout requirements. Check for any obsolescence notices or lifecycle changes directly from onsemi before finalizing procurement plans.

Selection Notes

Select this component when designing circuits requiring high-efficiency serial LED driving with minimal quiescent current consumption. The 1.5MHz switching frequency helps reduce electromagnetic interference in portable devices. Choose the BSX variant specifically for its 315mV feedback voltage requirement, distinguishing it from other series members. Ensure the application demands an integrated switch capable of handling peak currents up to 1.5A within the specified thermal limits.

Part Context

The FAN5333B series belongs to onsemi's portfolio of general-purpose LED drivers designed for mobile communications equipment. These devices are engineered to extend battery life through low quiescent current modes. The FAN5333BSX represents a specific configuration within this family, optimized for applications needing precise feedback voltage characteristics alongside high output power capabilities in a compact surface-mount package.