Stmicroelectronics (L6902D) DC-DC Switching Buck (Step Down) Regulator

DC-DC Switching Buck (Step Down) Regulator, Adjustable, 8V-36Vin, 1.235V-34Vout,1Aout, SOIC-8Product OverviewThe L6902D is a complete and simple step-down Switching Regulator withadjustable current limit. Based on a voltage-mode structure it integrates acurrent error amplifier to have a constant voltage and constant current control.By means of an on board current sense resistor and the availability of thecurrent sense pins (both compatible to Vcc and for Cs- compatible with GND too)a current limit programming is very simple and accurate (±5%). Moreover constantcurrent control can be used to charge NiMH and NiCd batteries. The device can beused as a standard DC/DC converter with adjustable current limit (set by usingthe external sense resistor). The internal robust P-channel DMOS transistor witha typical of 250mR assures high efficiency and a minimum dropout even at highoutput current level. The internal limiting current (latched function) oftypical value of 2.5A protects the device from accidental output short-circuitavoiding dangerous loads damage.Voltage feed-forwardZero load current operationAdjustable current limitProtection against feedback disconnectionThermal shutdownOvervoltage and frequency foldback overcurrent protectionPrecise 3.3V (±2%) reference voltage5% Output current accuracyApplicationsPower Management, Computers & Computer PeripheralsProduct InformationTopology: Buck (Step Down)Input Voltage Min: 8VInput Voltage Max: 36VNo. of Outputs: 1OutputsDC / DC Converter IC Case: SOICNo. of Pins: 8PinsOutput Current: 1AOutput Voltage Min: 1.235VOutput Voltage Max: 34VSwitching Frequency: 275kHzOperating Temperature Max: 150°C