PWM ICs

It's a Unisonic Technologies UC3845L DIP-8 High Performance Current mode PWM Controller. With a small number of external components, it is a high-performance fixed frequency current mode controller that is intended for off-line and DC-to-DC converter...

The UC3843 fixed frequency current mode controller is specifically designed for off−line and DC−to−DC converter applications offering the designer a cost effective solution with minimal external components. These integrated circuits feature a trimmed oscillator for...

The highly integrated current mode PWM control IC OB2269AP is designed for high performance, low standby power, and cost-effective offline fly-back converter applications with power levels above 20W. PWM switching frequency can be externally programmed...

The IL494 incorporates on a single monolithic chip all the functions required in the construction of a pulse-width-modulation control circuit. Designed primarily for power supply control, the IL494 contains an on-chip 5-volt regulator, two error amplifiers,an adjustable oscillator,...

This highly integrated PWM controller provides several special enhancements designed to meet the low standby power needs of low-power SMPS. The proprietary green-mode function provides off-time modulation to linearly decrease the switching frequency under light-load...

The UCC3895 is a phase shift PWM (pulse-width modulation) controller that implements control of a full-bridge power stage by phase shifting the switching of one half-bridge with respect to the other. It allows constant frequency...

The TL2843 family of control integrated circuits provides the functionality required to construct off-line or DC-to-DC fixed-frequency current-mode control schemes with the least number of external components. An undervoltage lockout (UVLO) with a start-up current...

This highly integrated PWM controller provides several special enhancements designed to meet the low standby power needs of low-power SMPS. The proprietary green-mode function provides off-time modulation to linearly decrease the switching frequency under light-load...

The IL494 incorporates on a single monolithic chip all the functions required in the construction of a pulse-width-modulation control circuit. Designed primarily for power supply control, the IL494 contains an on-chip 5-volt regulator, two error amplifiers,an adjustable oscillator,...

The UC3845 fixed frequency current mode controller is specifically designed for off−line and DC−to−DC converter applications offering the designer a cost effective solution with minimal external components. These integrated circuits feature a trimmed oscillator for...

The KA3525A is a monolithic integrated circuit that includes all of the control circuits necessary for a pulse width modulating regulator. There is a voltage reference, an error amplifier, a pulse width modulator, an oscillator,...