Stmicroelectronics (L4970A) DC-DC Switching Buck Step Down Regulator

DC-DC Switching Buck Step Down Regulator, Adjustable, 15V-50Vin, 5.1V-40Vout, 10Aout, Multiwatt15-15 Product Overview The L4970A is a Step-down Monolithic Power Switching Regulator IC delivering 10A at a voltage variable from 5.1 to 40V. This device uses a DMOS output transistor to obtain very high efficiency and very fast switching times. Features of this include reset and power fail for microprocessors, feed forward line regulation, soft start, limiting current and thermal protection. The device is mounted in a 15-lead multi-watt plastic power package and requires few external components. Efficient operation at switching frequencies up to 500kHz allows reduction in the size and cost of external filter components. 0 to 90% Duty cycle range Internal feed-forward line regulation Internal current limiting Precise 5.1V ±2% on-chip reference Reset and power fail functions Input/output sync pin Under voltage lock out with hysteretic turn-on PWM latch for single pulse per period Very high efficiency Continuous mode operation Applications Power Management Product Information Topology: Buck (Step Down) Input Voltage Min: 15V Input Voltage Max: 50V No. of Outputs: 1Outputs DC / DC Converter IC Case: Multiwatt15 No. of Pins: 15Pins Output Current: 10A Output Voltage Min: 5.1V Output Voltage Max: 40V Switching Frequency: 500kHz Operating Temperature Max: 150°C