L6902

Zero load current operation

Description TheL6902Disacompleteandsimplestepdownswitchingregulatorwithadjustablecurrentlimit. Basedonavoltagemodestructureitintegratesacurrenterroramplifiertohaveaconstantvoltageandconstantcurrentcontrol. Bymeansofanonboardcurrentsenseresistorandthe

L6902

具有可调电流限值的1 A开关稳压器; • Up to 1 A output current \n• Operating input voltage from 8 V to 36 V \n• Precise 3.3 V (±2%) reference voltage \n• 5 % output current accuracy \n• Output voltage adjustable from 1.235 V to 34 V \n• 250 kHz internally fixed frequency• Voltage feedforward \n• Zero load current operation \n• Adjustable current limit \n• Protection against feedback Disconnection \n• Thermal shutdown;

The L6902D is a complete and simple step down switching regulator with adjustable current limit.\n\n Based on a voltage mode structure it integrates a current error amplifier to have a constant voltage and constant current control.\n\n By means of an on board current sense resistor and the availability of the current sense pins (both compatible to Vcc and for Cs- compatible with GND too) a current limit programming is very simple and accurate (±5%). Moreover constant current control can be used to charge NiMH and NiCd batteries.\n\n The device can be used as a standard DC/DC converter with adjustable current limit (set by using the external sense resistor).\n\n The internal robust P-channel DMOS transistor with a typical of 250 mΩ assures high efficiency and a minimum dropout even at high output current level. The internal limiting current (latched function) of typical value of 2.5 A protects the device from accidental output short circuit avoiding dangerous loads damage.\n\n If the temperature of the chip goes higher than a fixed internal threshold (150°C with 20°C hysteresis), the power stage is turned off.\n\n Other protections beside thermal shutdown complete the device for a safe and reliable application: overvoltage protection, frequency folback overcurrent protection and protection vs. feedback disconnection.\n\n The internal fixed switching frequency of 250KHz, and the SO-8 package pin allow to built an ultra compact DC/ DC converter with a minimum board space.\n\n

L6902D

UP TO 1A SWITCHING REGULATOR WITH ADJUSTABLE CURRENT LIMIT

Description TheL6902Disacompleteandsimplestepdownswitchingregulatorwithadjustablecurrentlimit. Basedonavoltagemodestructureitintegratesacurrenterroramplifiertohaveaconstantvoltageandconstantcurrentcontrol. Bymeansofanonboardcurrentsenseresistorandthe

L6902D

Zero load current operation

Description TheL6902Disacompleteandsimplestepdownswitchingregulatorwithadjustablecurrentlimit. Basedonavoltagemodestructureitintegratesacurrenterroramplifiertohaveaconstantvoltageandconstantcurrentcontrol. Bymeansofanonboardcurrentsenseresistorandthe

L6902D013TR

UP TO 1A SWITCHING REGULATOR WITH ADJUSTABLE CURRENT LIMIT

Description TheL6902Disacompleteandsimplestepdownswitchingregulatorwithadjustablecurrentlimit. Basedonavoltagemodestructureitintegratesacurrenterroramplifiertohaveaconstantvoltageandconstantcurrentcontrol. Bymeansofanonboardcurrentsenseresistorandthe

L6902D013TR

Zero load current operation

Description TheL6902Disacompleteandsimplestepdownswitchingregulatorwithadjustablecurrentlimit. Basedonavoltagemodestructureitintegratesacurrenterroramplifiertohaveaconstantvoltageandconstantcurrentcontrol. Bymeansofanonboardcurrentsenseresistorandthe

L6902D

UP TO 1A SWITCHING REGULATOR WITH ADJUSTABLE CURRENT LIMIT

L6902D_04

UP TO 1A SWITCHING REGULATOR WITH ADJUSTABLE CURRENT LIMIT

L6902D013TR

UP TO 1A SWITCHING REGULATOR WITH ADJUSTABLE CURRENT LIMIT

L6902D

Package：8-SOIC（0.154"，3.90mm 宽）；包装：卷带（TR）剪切带（CT）Digi-Reel® 得捷定制卷带 功能：降压 类别：集成电路（IC） 稳压器 - DC-DC 开关稳压器 描述：IC REG BUCK ADJUSTABLE 1A 8SO