Product Summary

The SC34073A is a Step-Up/Down/ Inverting Switching Regulator containing the primary functions required for DC-to-DC converters. The SC34073A consists of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch. This series was specifically designed to be incorporated in Step-Down and Step-Up and Voltage.Inverting applications with a minimum number of external components. Refer to Application Notes AN920A/D and AN954/D for additional design information.

Parametrics

SC34073A absolute maximum ratings: (1)VCC, ENto GND: -0.3 to 14.0V; (2)VOUT VPRGM, IPRGM, CP, OVP, STAT, TERM, BIP to GND: -0.3 to +6.0V; (3)Power Dissipation MLP (Derate 20mW/℃ above 85℃), PD: 2.5W; (4)VOUT short to GND: Continuous; (5)Thermal Resistance, Junction to Ambient, θJA: 50℃/W; (6)Operating Junction Temperature, TJ: 150℃; (7)Lead Temperature, Tlead: 235℃; (8)Storage Temperature (Soldering) 10 seconds, Tstg: -65 to 150℃; (9)ESD Rating (Human Body Model), ESD: 2kV.

Features

SC34073A features: (1)Operation from 3.0 V to 40 V Input; (2)Low Standby Current; (3)Current Limiting; (4)Output Switch Current to 1.5 A; (5)Output Voltage Adjustable; (6)Frequency Operation to 100 kHz; (7)Precision 2% Reference; (8)Pb-Free Packages are Available.

Diagrams

SC34073A block diagram