LX1553IDM

Description：IC REG CTRLR BUCK/BOOST 8SOIC
Series：-
Mfr：Microsemi Corporation
Package：Tube

SKU:14bcfa29ffd2 Category: DC DC Switching Controllers Brand: Microsemi Corporation

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Product introduction

LX1553IDM is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists Microsemi Corporation. Its product description is IC REG CTRLR BUCK/BOOST 8SOIC. Review the specifications below when checking this part for your BOM.

DC DC Switching Controllers specifications for LX1553IDM

Description：IC REG CTRLR BUCK/BOOST 8SOIC
Series：-
Mfr：Microsemi Corporation
Package：Tube
Output Type：Transistor Driver
Function：Step-Up, Step-Down
Output Configuration：Positive
Topology：Buck, Boost
Number of Outputs：1
Output Phases：1
Voltage - Supply (Vcc/Vdd)：7.6V ~ 30V
Frequency - Switching：-
Duty Cycle (Max)：96%
Synchronous Rectifier：Yes
Clock Sync：No
Serial Interfaces：-
Control Features：Frequency Control
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：8-SOIC (0.154", 3.90mm Width)
Supplier Device Package：8-SOIC
Grade：-
Qualification：-

DC DC Switching Controllers datasheet and documents for LX1553IDM

LX1553IDM

DC DC Switching Controllers Overview

The LX1553IDM is a DC-DC switching controller IC from the LX155X family, manufactured by Microsemi Corporation. It utilizes current mode control to manage buck and boost converter topologies with positive output configurations. The device operates within a supply voltage range of 7.6V to 30V and supports a maximum duty cycle of 48%. Designed for surface mount installation, it is housed in an 8-SOIC package (0.154 inch width). The component functions as a synchronous rectifier controller and features frequency control capabilities. It is rated for an operating temperature range of -40°C to 85°C.

DC DC Switching Controllers Feature Summary

Implements current mode control architecture for offline converter applications
Supports both step-up (boost) and step-down (buck) converter topologies
Features ultra-low start-up current characteristics for enhanced energy efficiency

DC DC Switching Controllers Applications

Offline power supply converters
Buck converter circuit designs
Boost converter circuit designs

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'IDM' against the manufacturer's official datasheet to confirm pinout and electrical specifications match the design requirements. Note that this component may be listed as obsolete or end-of-life; check for active stock availability or authorized distributor status before finalizing procurement plans.

DC DC Switching Controllers Selection Notes

Select this controller when designing offline converters requiring low quiescent current and flexible buck/boost topology support. Ensure the input voltage stays within the 7.6V to 30V range. Verify that the 8-SOIC package dimensions fit the PCB layout constraints and that the thermal performance meets the -40°C to 85°C ambient temperature requirement.

DC DC Switching Controllers Part Context

The LX1553IDM belongs to the LX155X series of current mode PWM controllers. This family is characterized by ultra-low start-up currents, targeting energy-efficient offline power conversion. The LX1553 variant specifically provides the necessary control logic for regulating output voltage in both step-up and step-down configurations using external power switches.