Linear LTC1148CS-5#PBF Synchronous Step-Down Switching Regulator S...

Linear LTC1148CS-5#PBF Synchronous Step-Down Switching Regulator S...
£6.36  

Linear Technology Switching Regulators SOIC - Linear Technology LTC1148CS-5#PBF, The Linear Technology LTC1148 series is a family of synchronous stepdown switching regulator controllers featuring automatic Burst Mode operation to maintain high efficiencies at low output currents. These devices drive external complementary power MOSFETs at switching frequencies up to 250kHz using a constant off-time current-mode architecture providing constant ripple current in the inductor. The operating current level is user-programmable via an external current sense resistor. Wide input supply range allows operation from 3.5V* to 18V (20V maximum). Constant off-time architecture provides low dropout regulation limited by only the R DS(ON) of the external MOSFET and resistance of the inductor and current sense resistor. The LTC1148 series combines synchronous switching for maximum efficiency at high currents with an automatic low current operating mode, called Burst Mode operation, which reduces switching losses. Standby power is reduced to only 2mW at V IN = 10V (at Iout = 0). Load currents in Burst Mode operation are typically 0mA to 300mA. For operation up to 48V input, see the LTC1149 and LTC1159 data sheets and Application Note 54. * LTC1148L and LTC1148L-3.3 only. Protected by U.S. Patents, including 6580258, 5481178. Linear LTC1148CS-5#PBF Synchronous Step-Down Switching Regulator SOIC-14

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