LM51561QDSSRQ1

$2.08

Description：IC POWER
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:ed01fc2153e9 Category: DC DC Switching Controllers Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC POWER
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Output Type：Transistor Driver
Function：Step-Up, Step-Up/Step-Down
Output Configuration：Positive
Topology：Boost, Flyback, SEPIC
Number of Outputs：1
Output Phases：1
Voltage - Supply (Vcc/Vdd)：3.5V ~ 60V
Frequency - Switching：100kHz ~ 2.2MHz
Duty Cycle (Max)：93%
Synchronous Rectifier：No
Clock Sync：Yes
Serial Interfaces：-
Control Features：Current Limit, Enable, Frequency Control, Power Good, Soft Start
Operating Temperature：-40°C ~ 150°C (TJ)
Mounting Type：Surface Mount
Package / Case：12-WFDFN Exposed Pad
Supplier Device Package：12-WSON (3x2)
Grade：Automotive
Qualification：AEC-Q100

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LM51561QDSSRQ1

Overview

The LM51561QDSSRQ1 is an automotive-grade, non-synchronous boost, flyback, and SEPIC switching controller manufactured by Texas Instruments. It supports a wide input voltage range of 2.97 V to 60 V and delivers up to 1.5 A output current. The device features an adjustable switching frequency from 100 kHz to 2.2 MHz and achieves a maximum duty cycle of 93%. It operates within a junction temperature range of -40°C to 125°C and is housed in a compact 12-WSON (3x2) package.

Feature Summary

Supports multiple topologies including Boost, Flyback, and SEPIC configurations for versatile power conversion needs.
Features a wide input voltage range suitable for various automotive supply conditions.
Includes integrated protection mechanisms such as overcurrent limiting and thermal shutdown.
Offers flexible frequency control with clock synchronization capability.

Applications

Automotive infotainment systems
LED lighting drivers
Industrial sensor interfaces

Procurement Notes

Verify the specific suffix 'Q1' confirms AEC-Q100 qualification for automotive reliability standards. Ensure the WSON-12 package matches your PCB footprint requirements. Confirm that the non-synchronous design aligns with your efficiency targets compared to synchronous alternatives. Check datasheet for recommended operating conditions regarding ambient temperature derating.

Selection Notes

Select this component when designing circuits requiring high input voltages up to 60 V in an automotive environment. Consider the non-synchronous architecture if simplicity and cost are prioritized over peak efficiency at light loads. Evaluate the 1.5 A current limit against your maximum load requirements. Ensure the 12-WSON package fits within your available board space constraints.

Part Context

This part belongs to the LM51561 family of wide VIN controllers designed for robust performance in demanding applications. It complements other Texas Instruments power management solutions by providing a flexible control interface for external MOSFETs. The Q1 designation indicates it meets stringent automotive quality and reliability standards required for vehicle integration.