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LM2642MTC/NOPB |LM2642MTCNOPBNSN/a2867avai4.5-30V, Two-Phase Emulated Current Mode Synchoronous Buck Controller 28-TSSOP -40 to 125
LM2642MTC-NOPB |LM2642MTCNOPBNSN/a1900avai4.5-30V, Two-Phase Emulated Current Mode Synchoronous Buck Controller 28-TSSOP -40 to 125
LM2642MTCX/NOPB |LM2642MTCXNOPBNSN/a2275avai4.5-30V, Two-Phase Emulated Current Mode Synchoronous Buck Controller 28-TSSOP -40 to 125


LM2642MTC/NOPB ,4.5-30V, Two-Phase Emulated Current Mode Synchoronous Buck Controller 28-TSSOP -40 to 125These devices have limited built-in ESD protection. The leads should be shorted together or the dev ..
LM2642MTC-NOPB ,4.5-30V, Two-Phase Emulated Current Mode Synchoronous Buck Controller 28-TSSOP -40 to 125FEATURES DESCRIPTIONThe LM2642 consists of two current mode2• Two Synchronous Buck Regulatorssynchr ..
LM2642MTCX ,Two-Phase Synchronous Step-Down Switching ControllerPin DescriptionsderivedfromVIN.ItsuppliestheinternalbiasforthechipandKS1 (Pin 1): The positive (+) ..
LM2642MTCX/NOPB ,4.5-30V, Two-Phase Emulated Current Mode Synchoronous Buck Controller 28-TSSOP -40 to 125 SNVS203I –MAY 2002–REVISED APRIL 2013system.ON/SS1 (Pin 9) Channel 1 enable pin. This pin is inter ..
LM2645MTD ,Advanced Two-Phase Switching Controller With Two Linear OutputsPin Descriptions (Continued)This pin is usually connected to the fixed 5V output ofof the top MOSFE ..
LM2645MTDX ,Advanced Two-Phase Switching Controller With Two Linear OutputsPin Descriptionsis pulled LOW (<0.8V), and are enabled when this pin ispulled HIGH (>2V).VO1 (Pin 1 ..
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LM4916LD ,1.5V, Mono 85mW BTL Output, 14mW Stereo Headphone Audio Amplifierfeaturescircuitrythatreducesoutputtransientsn Single ended headphone operation with coupling("click ..
LM4916LD/NOPB ,1.5V, Mono 85mW BTL Output, 14mW Stereo Headphone Audio Amplifier 10-WSON -40 to 85ELECTRICAL CHARACTERISTICS FOR THE LM4916The following specifications apply for the circuit shown i ..
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LM2642MTC/NOPB-LM2642MTC-NOPB-LM2642MTCX/NOPB
Two-Phase Synchronous Step-Down Switching Controller
LM2642
LM2642
LM2642 Two-Phase Synchronous Step-Down Switching Controller
Checkfor Samples: LM2642
1FEATURES DESCRIPTION

The LM2642 consists of two current mode Two Synchronous Buck Regulators synchronous buck regulator controllers with a• 180° Outof Phase Operation switching frequencyof 300kHz. 4.5Vto 30V Input Range The two switching regulator controllers operate 180°• Power Good Function Monitors Ch.1 outof phase. This feature reduces the input ripple 37µA Shutdown Current RMS current, thereby significantly reducing the
required input capacitance. The two switching• 0.04% (typical) Line and Load Regulation Error regulator outputs can alsobe paralleledto operateas• CurrentResistor• IndependentSimple• Configurable for Single Output Parallel bootstrap circuitry.
Operation. (See Figure 3).
Current-mode feedback control assures excellent line• Adjustable Cycle-by-Cycle Current Limit and load regulation anda wide loop bandwidth for Input Lockout excellent responseto fast load transients. Currentis
sensed across either the Vds of the top FET or• Output Latch Protection across an external current-sense resistor connected• Output Protection with Delay in series with the drainof the top FET. Current limitis Thermal independently adjustable for each channel. Self Output Capacitors When the The LM2642 features analog soft-start circuitry thatisRegulator• TSSOPAPPLICATIONS• Embedded Computer Systems of channel1. Over-voltage protectionis available for• High End Gaming Systems both outputs.A UV-Delay pinis also availableto• Set-top Boxes timefor theIC during an output
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