LM2642MTCX/NOPB

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Texas Instruments

4.5-V TO 30-V, TWO-PHASE PEAK CURRENT MODE SYNCHRONOUS BUCK CONTROLLER

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LM2642MTCX/NOPB

Active

Texas Instruments

4.5-V TO 30-V, TWO-PHASE PEAK CURRENT MODE SYNCHRONOUS BUCK CONTROLLER

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Description Specifications Series Pricing CAD Documents

Description

General part information

LM2642 Series

The LM2642 consists of two current mode synchronous buck regulator controllers with a switching frequency of 300kHz.

The two switching regulator controllers operate 180° out of phase. This feature reduces the input ripple RMS current, thereby significantly reducing the required input capacitance. The two switching regulator outputs can also be paralleled to operate as a dual-phase single output regulator.

The output of each channel can be independently adjusted from 1.3 to VIN• maximum duty cycle. An internal 5V rail is also available externally for driving bootstrap circuitry.

Technical Specifications

Parameters and characteristics for this part

Specification	LM2642MTCX/NOPB

Applications	Console/Set-Top boxes, Embedded systems
Current - Supply	1 mA
Mounting Type	Surface Mount
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Package Length	0.173 in
Package Name	28-TSSOP
Package Width	4.4 mm
Voltage - Supply (Maximum)	30 VDC
Voltage - Supply (Minimum)	4.5 V

LM2642 Series

Part	Current - Supply	Package Length	Package Name	Package Width	Applications	Operating Temperature (Max)	Operating Temperature (Min)	Mounting Type	Voltage - Supply (Minimum)	Voltage - Supply (Maximum)	Total Output Count	Output Type	Non-Isolated Output Count	Board Type	Supplied Contents	Current - Output (Max)	Current - Output (Min)	Regulator Topology	Main Purpose	Voltage - Output	Contents	Utilized IC / Part	Frequency - Switching	Voltage - Input (Minimum)	Voltage - Input (Maximum)
Texas Instruments LM2642MTCX	1 mA	0.173 in	28-TSSOP	4.4 mm	Console/Set-Top boxes Embedded systems	125 °C	-40 °C	Surface Mount	4.5 V	30 VDC
Texas Instruments LM2642MTCX/NOPB	1 mA	0.173 in	28-TSSOP	4.4 mm	Console/Set-Top boxes Embedded systems	125 °C	-40 °C	Surface Mount	4.5 V	30 VDC
Texas Instruments LM2642REVD EVAL											2	Non-Isolated	2 count	Fully Populated	Board(s)	2 A	2 A	Buck	DC/DC Step Down	1.8 V 2.5 V	Board	LM2642	300 kHz	4.5 V	20 V
Texas Instruments LM2642MTC/NOPB	1 mA	0.173 in	28-TSSOP	4.4 mm	Console/Set-Top boxes Embedded systems	125 °C	-40 °C	Surface Mount	4.5 V	30 VDC
Texas Instruments LM26420YMHEVAL/NOPB											2	Non-Isolated	2 count	Fully Populated	Board(s)	2 A	2 A	Buck	DC/DC Step Down	1.2 V 2.5 V	Board	LM26420	550 kHz	3 V	5.5 V
Texas Instruments LM2642MTC/NOPB	1 mA	0.173 in	28-TSSOP	4.4 mm	Console/Set-Top boxes Embedded systems	125 °C	-40 °C	Surface Mount	4.5 V	30 VDC
Texas Instruments LM2642MTCX/NOPB	1 mA	0.173 in	28-TSSOP	4.4 mm	Console/Set-Top boxes Embedded systems	125 °C	-40 °C	Surface Mount	4.5 V	30 VDC
Texas Instruments LM2642MTC	1 mA	0.173 in	28-TSSOP	4.4 mm	Console/Set-Top boxes Embedded systems	125 °C	-40 °C	Surface Mount	4.5 V	30 VDC
Texas Instruments LM2642MTC	1 mA	0.173 in	28-TSSOP	4.4 mm	Console/Set-Top boxes Embedded systems	125 °C	-40 °C	Surface Mount	4.5 V	30 VDC

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

Power Management Guide 2018 (Rev. R)

Reduce buck-converter EMI and voltage stress by minimizing inductive parasitics

LM2642 Buck Controller Evaluation Module User's Guide (Rev. I)

Controlling switch-node ringing in synchronous buck converters

LM2642 Two-Phase Synchronous Step-Down Switching Controller datasheet (Rev. I)