UC1526A, UC2526A, and UC3526A are regulating pulse width modulator circuits with features including reduced supply current, oscillator frequency up to 600kHz, precision band-gap reference voltage, operating voltage range of 7V to 35V, dual 200mA source/sink outputs, minimum output cross-conduction, double-pulse suppression logic, under-voltage lockout, programmable soft-start, thermal shutdown, TTL/CMOS compatible logic ports, and 5V operation.