LM5642MTC

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National Semiconductor

LM5642 4.5-36V, CURRENT MODE DUA

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National Semiconductor

LM5642 4.5-36V, CURRENT MODE DUA

Technical Specifications

Parameters and characteristics for this part

Specification	LM5642MTC

Clock Sync	True
Control Features	Current Limit, Soft Start, Enable
Duty Cycle (Max) [Max]	98.9 %
Frequency - Switching	200 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-TSSOP
Package / Case	0.173 in
Package / Case [y]	4.4 mm
Supplier Device Package	28-TSSOP
Synchronous Rectifier	True
Topology	Buck
Voltage - Supply (Vcc/Vdd) [Max]	36 V
Voltage - Supply (Vcc/Vdd) [Min]	4.5 V

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

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General part information

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

Technical documentation and resources

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