XRP7664IDTR-F Datasheet, PDF (1/2 Pages) Exar Corporation – The Popular Choice for 2A Power Rail Down Conversions

2A 18V Synchronous Step-Down Converter
XRP7664
The Popular Choice for 2A Power Rail Down Conversions
The XRP7664 is a synchronous current mode PWM step down (buck) regulator
capable of a constant output current up to 2Amps. A wide 4.75V to 18V input
voltage range allows for single supply operations from industry standard 5V and
12V power rails.
With a 340kHz constant operating frequency and integrated high and low side
120mΩ/110mΩ MOSFETs, the XRP7664 reduces the overall component count
and solution footprint. Current-mode control provides fast transient response
and cycle-by-cycle current limit. An adjustable soft-start prevents inrush current
at turn-on, and in shutdown mode the supply current drops to 0.1uA.
Built-in output over voltage (open load), over temperature, cycle-by-cycle over
current and under voltage lockout (UVLO) protections insure safe operations
under abnormal operating conditions.
The XRP7664 is offered in a RoHS compliant, “green”/halogen free 8-pin SOIC
package.
MAJOR FEATURES
• Pin/Function Compatible to
MP1482
• 2A Continuous Output Current
• 4.75V to 18V Wide Input
Voltage
• PWM Current Mode Control
 340kHz Constant Operations
 Up to 93% Efficiency
• Adjustable Output Voltage
 0.925V to 16V Range
 3% Accuracy
• Programmable Soft-Start and
Enable Function
• Built-in Thermal, Over Current,
UVLO and Output Over Voltage
Protections
• RoHS Compliant, “Green”/
Halogen Free 8-Pin SOIC
Package
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