Integrated Circuits (ICs)

LM5642XMHX/NOPB

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Texas Instruments

DC/DC CNTRLR DUAL-OUT STEP DOWN 20A/20A 424KHZ 28-PIN HTSSOP EP T/R

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Integrated Circuits (ICs)

LM5642XMHX/NOPB

Active

Texas Instruments

DC/DC CNTRLR DUAL-OUT STEP DOWN 20A/20A 424KHZ 28-PIN HTSSOP EP T/R

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Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LM5642XMHX/NOPB

Clock Sync	True
Control Features	Current Limit, Soft Start, Enable
Duty Cycle (Max) [Max]	98.9 %
Frequency - Switching	375 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Phases	2
Output Type	Transistor Driver
Package / Case	28-PowerTSSOP
Package / Case [custom]	4.4 mm
Package / Case [custom]	0.173 "
Supplier Device Package	28-HTSSOP
Synchronous Rectifier	True
Topology	Buck
Voltage - Supply (Vcc/Vdd) [Max]	36 V
Voltage - Supply (Vcc/Vdd) [Min]	4.5 V

LM5642 Series

Part	Topology	Output Type	Function	Frequency - Switching	Output Configuration	Mounting Type	Number of Outputs	Package / Case [custom]	Package / Case	Package / Case [custom]	Output Phases	Operating Temperature [Min]	Operating Temperature [Max]	Control Features	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Supplier Device Package	Duty Cycle (Max) [Max]	Package / Case	Package / Case [y]
Texas Instruments LM5642XMH/NOPB	Buck	Transistor Driver	Step-Down	375 kHz	Positive	Surface Mount	2	4.4 mm	28-PowerTSSOP	0.173 "	2	-40 °C	125 ¯C	Current Limit Enable Soft Start	4.5 V	36 V	28-HTSSOP	98.9 %
Texas Instruments LM5642XMTX/NOPB	Buck	Transistor Driver	Step-Down	375 kHz	Positive	Surface Mount	2		28-TSSOP		2	-40 °C	125 ¯C	Current Limit Enable Soft Start	4.5 V	36 V	28-TSSOP	98.9 %	0.173 in	4.4 mm
Texas Instruments LM5642XMHX	Buck	Transistor Driver	Step-Down	375 kHz	Positive	Surface Mount	2	4.4 mm	28-PowerTSSOP	0.173 "	2	-40 °C	125 ¯C	Current Limit Enable Soft Start	4.5 V	36 V	28-HTSSOP	98.9 %
Texas Instruments LM5642XMHX/NOPB	Buck	Transistor Driver	Step-Down	375 kHz	Positive	Surface Mount	2	4.4 mm	28-PowerTSSOP	0.173 "	2	-40 °C	125 ¯C	Current Limit Enable Soft Start	4.5 V	36 V	28-HTSSOP	98.9 %
Texas Instruments LM5642XMT/NOPB	Buck	Transistor Driver	Step-Down	375 kHz	Positive	Surface Mount	2		28-TSSOP		2	-40 °C	125 ¯C	Current Limit Enable Soft Start	4.5 V	36 V	28-TSSOP	98.9 %	0.173 in	4.4 mm
Texas Instruments LM5642XMH	Buck	Transistor Driver	Step-Down	375 kHz	Positive	Surface Mount	2	4.4 mm	28-PowerTSSOP	0.173 "	2	-40 °C	125 ¯C	Current Limit Enable Soft Start	4.5 V	36 V	28-HTSSOP	98.9 %
Texas Instruments LM5642MH/NOPB	Buck	Transistor Driver	Step-Down	200 kHz	Positive	Surface Mount	2	4.4 mm	28-PowerTSSOP	0.173 "	2	-40 °C	125 ¯C	Current Limit Enable Soft Start	4.5 V	36 V	28-HTSSOP	98.9 %
Texas Instruments LM5642MTCX/NOPB	Buck	Transistor Driver	Step-Down	200 kHz	Positive	Surface Mount	2		28-TSSOP		2	-40 °C	125 ¯C	Current Limit Enable Soft Start	4.5 V	36 V	28-TSSOP	98.9 %	0.173 in	4.4 mm
Texas Instruments LM5642MTCX	Buck	Transistor Driver	Step-Down	200 kHz	Positive	Surface Mount	2		28-TSSOP		2	-40 °C	125 ¯C	Current Limit Enable Soft Start	4.5 V	36 V	28-TSSOP	98.9 %	0.173 in	4.4 mm
Texas Instruments LM5642MTC	Buck	Transistor Driver	Step-Down	200 kHz	Positive	Surface Mount	2		28-TSSOP		2	-40 °C	125 ¯C	Current Limit Enable Soft Start	4.5 V	36 V	28-TSSOP	98.9 %	0.173 in	4.4 mm

Pricing

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

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 4.53
		10	$ 4.07
		25	$ 3.85
		100	$ 3.34
		250	$ 3.17
		500	$ 2.84
		1000	$ 2.40
	Digi-Reel®	1	$ 4.53
		10	$ 4.07
		25	$ 3.85
		100	$ 3.34
		250	$ 3.17
		500	$ 2.84
		1000	$ 2.40
	Tape & Reel (TR)	2500	$ 2.12

Description

General part information

LM5642 Series

Buck Regulator Positive Output Step-Down DC-DC Controller IC 28-HTSSOP

Documents

Technical documentation and resources

No documents available