XRP7659


1.5A 18V 1.4MHz Non Synchronous Step-Down Regulator

Features

  • 1.5A Continuous Output Current
  • 4.5V to 18V Wide Input Voltage
  • PWM Current-Mode Control
    • 1.4MHz Constant Operation
    • Up to 92% Efficiency
  • Adjustable Output Voltage
    • 0.81V to 15V Range
    • ±3% Accuracy
  • Enable Function and Soft Start
  • Built-in Thermal, Over-Current, UVLO and Output Over-Voltage Protection
  • Pin/Function (VIN<18V) Compatible to MP2359
  • RoHS Compliant, "Green"/Halogen Free 6-Pin SOT-23 Package
Applications

  • Distributed Power Architectures
  • Point of Load Converters
  • Audio-Video Equipment
  • Medical & Industrial Equipment
Description

The XRP7659 is a current-mode PWM step-down (buck) voltage regulator capable of delivering an output current up to 1.5Amps. A wide 4.5V to 18V input voltage range allows for single supply operation from industry standard 5V, 9.6V and 12V power rails.

With a 1.4MHz constant operating frequency, integrated high-side MOSFET and loop compensation, the XRP7659 reduces the overall component count and solution footprint. Current-mode control provides fast transient response and cycle-by-cycle current limit. An integrated soft-start prevents inrush current at turn-on, and in shutdown mode the supply current drops to 0.1µA.

Built-in output over voltage (open load), over temperature, cycle-by-cycle over-current and under voltage lockout (UVLO) protection insure safe operation under abnormal operating conditions.

The XRP7659 is a pin and function compatible device to Monolithic Power Systems MP2359 for input voltages below 18V.

The XRP7659 is offered in a RoHS compliant, "green"/halogen free 6-pin SOT-23 package.
Part NumberPkg CodeRoHSMin
Temp.
(°C)		Max
Temp.
(°C)		StatusBuy NowOrder Samples
XRP7659EVBBoard   Active
XRP7659ISTR-FSOT23-6SOT23-6-4085Active

Part Status Legend
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs. 
Specifications
Iout(mA)1500
Vin MIN. (V)4.5
Vin MAX. (V)18
IQ (µA)800
Freq (kHz)1400
Efficiency(%)92
Documents
Block Diagram
Datasheets
Datasheet
Version 1.2.0
August 2012
1.06 MB
Manuals
Evaluation Board Manual
Version 1.0.0
August 2012
603.54 KB