LMR23615-Q1 Series

SIMPLE SWITCHER®, 36-V, 1.5-A Synchronous Step-Down Converter

Catalog

SIMPLE SWITCHER®, 36-V, 1.5-A Synchronous Step-Down Converter

Part	Topology	Voltage - Input (Max) [Max]	Frequency - Switching	Number of Outputs	Current - Output	Voltage - Output (Max)	Output Configuration	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Input (Min) [Min]	Supplier Device Package	Voltage - Output (Min/Fixed)	Package / Case	Function	Output Type	Mounting Type	Grade	Qualification	Outputs and Type	Outputs and Type	Board Type	Voltage - Input [Min]	Voltage - Input [Max]	Voltage - Output	Utilized IC / Part	Main Purpose	Regulator Topology	Supplied Contents
Texas Instruments LMR23615DRRR	Buck	36 V	2.425 MHz	1	1.5 A	28 V	Positive	-40 °C	125 ¯C	4 V	12-SON (3x3)	1 V	12-WFDFN Exposed Pad	Step-Down	Adjustable	Surface Mount Wettable Flank
Texas Instruments LMR23615QDRRRQ1	Buck	36 V	2.425 MHz	1	1.5 A	28 V	Positive	-40 °C	125 ¯C	4 V	12-SON (3x3)	1 V	12-WFDFN Exposed Pad	Step-Down	Adjustable	Surface Mount Wettable Flank	Automotive	AEC-Q100
Texas Instruments LMR23615DRRT	Buck	36 V	2.425 MHz	1	1.5 A	28 V	Positive	-40 °C	125 ¯C	4 V	12-SON (3x3)	1 V	12-WFDFN Exposed Pad	Step-Down	Adjustable	Surface Mount Wettable Flank
Texas Instruments LMR23615QDRRTQ1	Buck	36 V	2.425 MHz	1	1.5 A	28 V	Positive	-40 °C	125 ¯C	4 V	12-SON (3x3)	1 V	12-WFDFN Exposed Pad	Step-Down	Adjustable	Surface Mount Wettable Flank	Automotive	AEC-Q100
Texas Instruments LMR23615EVM			1.6 MHz		1.5 A														Non-Isolated	1	Fully Populated	4 V	36 V	3.3 V 5 V	LMR23615	DC/DC Step Down	Buck	Board(s)

Catalog

SIMPLE SWITCHER®, 36-V, 1.5-A Synchronous Step-Down Converter

Key Features

• Qualified for Automotive ApplicationsAEC-Q100 Qualified With the Following Results:Device Temperature Grade 1: –40°C to +125°C Ambient Operating TemperatureDevice HBM ESD Classification Level H2Device CDM ESD Classification Level C4A4-V to 36-V Input Range1.5-A Continuous Output CurrentIntegrated Synchronous Rectification60-ns Minimum Switch-On TimeInternal Compensation for Ease of UseAdjustable Switching FrequencyPFM Mode at Light LoadFrequency Synchronization to External ClockSoft Start into a Prebiased LoadHigh Duty-Cycle Operation SupportedOutput Short-Circuit Protection With Hiccup Mode12-Pin WSON Wettable Flanks Package with PowerPAD™Create a Custom Design Using the LMR23615-Q1 With theWEBENCH®Power DesignerQualified for Automotive ApplicationsAEC-Q100 Qualified With the Following Results:Device Temperature Grade 1: –40°C to +125°C Ambient Operating TemperatureDevice HBM ESD Classification Level H2Device CDM ESD Classification Level C4A4-V to 36-V Input Range1.5-A Continuous Output CurrentIntegrated Synchronous Rectification60-ns Minimum Switch-On TimeInternal Compensation for Ease of UseAdjustable Switching FrequencyPFM Mode at Light LoadFrequency Synchronization to External ClockSoft Start into a Prebiased LoadHigh Duty-Cycle Operation SupportedOutput Short-Circuit Protection With Hiccup Mode12-Pin WSON Wettable Flanks Package with PowerPAD™Create a Custom Design Using the LMR23615-Q1 With theWEBENCH®Power Designer

Description

The LMR23615 SIMPLE SWITCHER is an easy-to-use 36-V, 1.5-A synchronous step-down regulator. With a wide input range from 4 V to 36 V, the device is suitable for various industrial applications for power conditioning from unregulated sources. Peak current mode control is employed to achieve simple control-loop compensation and cycle-by-cycle current limiting. A quiescent current of 75 µA makes the device suitable for battery-powered systems. An ultra-low 2-µA shutdown current can further prolong battery life. Internal loop compensation means that the user is free from the tedious task of loop-compensation design and also minimizes the external components needed. An extended family is available in 2.5-A (LMR23625) and 3-A (LMR23630) load-current options in pin-to-pin compatible packages, allowing simple, optimum PCB layout. A precision enable input allows simplification of regulator control and system power sequencing. Protection features include cycle-by-cycle current limit, hiccup-mode short-circuit protection, and thermal shutdown due to excessive power dissipation. space space space The LMR23615 SIMPLE SWITCHER is an easy-to-use 36-V, 1.5-A synchronous step-down regulator. With a wide input range from 4 V to 36 V, the device is suitable for various industrial applications for power conditioning from unregulated sources. Peak current mode control is employed to achieve simple control-loop compensation and cycle-by-cycle current limiting. A quiescent current of 75 µA makes the device suitable for battery-powered systems. An ultra-low 2-µA shutdown current can further prolong battery life. Internal loop compensation means that the user is free from the tedious task of loop-compensation design and also minimizes the external components needed. An extended family is available in 2.5-A (LMR23625) and 3-A (LMR23630) load-current options in pin-to-pin compatible packages, allowing simple, optimum PCB layout. A precision enable input allows simplification of regulator control and system power sequencing. Protection features include cycle-by-cycle current limit, hiccup-mode short-circuit protection, and thermal shutdown due to excessive power dissipation. space space space