Power Controllers

PFC/PWM Controller simplifies ac/dc power supply design.
Power Controllers

PFC/PWM Controller simplifies ac/dc power supply design.

In 16-pin SOIC package, NCP1603 combines PFC controller chip and PWM control chip to help meet requirements for PFC and standby power consumption in ac/dc power supplies. It operates in voltage-mode, features programmable switching frequency for Discontinuous Conduction Mode (DCM) operation, and can synchronize PWM and PFC operation for max noise immunity. Under light load conditions, product...

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PoE Controllers are suited for IP phones and WLAN systems.
Power Controllers

PoE Controllers are suited for IP phones and WLAN systems.

Combining TPS2375 powered device controller with primary side dc/dc PWM controller, TPS23750 manages discovery, classification, and delivery of dc power to end appliance. It supports non-isolated or isolated power supply topologies and withstands voltage transients up to 100 V. To meet power requirements of legacy systems that are not fully 802.3af-compliant, TPS23770 integrated PD controller...

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Power Control Unit lessens need for remote site visits.
Power Controllers

Power Control Unit lessens need for remote site visits.

Suited for telecom, wireless, and broadcast providers using remote sites to propagate their signals, PowerBoss One allows individual power-cycling of 8 independent pieces of equipment at mixed voltages. Heavy-duty mechanical relays each handle ac or dc current up to 10 A @ 60 Vdc or 277 Vac. They can be used in NC position to avoid single point of failure and ensure non-stop operation of remote...

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DDR Memory Power Controller suits notebook applications.
Power Controllers

DDR Memory Power Controller suits notebook applications.

Offered in DFN-22 leadless package, NCP5214 integrates VDDQ and VTT termination voltages to help simplify motherboard design and save space in compact, portable computers. Light-load efficiency of 92% and shutdown current of less than 5 Â-µA help extend battery life. VTT termination voltage is supplied by linear regulator set to track one half of VDDQ voltage, which is supplied by...

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DC-DC Controller is rated for operation from -40 to 125°C.
Power Controllers

DC-DC Controller is rated for operation from -40 to 125°C.

Model LT3724 is suited for use in step-down, step-up, inverting, or SEPIC circuits with up to 100 W of output power. Power supply incorporating controller can convert 4-60 V input supplies to regulated output from 1.23-36 V. Operating at constant switching frequency of 200 kHz, single-chip unit includes Burst Mode® operation, which minimizes quiescent current below 100 Â-µA. Operating...

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DC/DC Controller eliminates need for transformers.
Power Controllers

DC/DC Controller eliminates need for transformers.

Using 2 inductors, step-up, 2-phase Model LT3782 can regulate 50 V output at 4 A load current with 96% efficiency from input source of 10-36 V. Unit includes adjustable slope compensation, time delay, and undervoltage lockout, as well as synchronous operation and clock synchronization. Operating from input range of 6-40 V, Model LT3782 uses constant frequency 150-500 kHz current mode...

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DC/DC Controller has margining and PLL capabilities.
Power Controllers

DC/DC Controller has margining and PLL capabilities.

Able to supply outputs as low as 0.6 V, synchronous, step-down LTC3770 integrates tracking and sequencing functions as well as output margining capability. Constant on-time, valley current mode architecture, combined with minimum on-time of 50 nsec, allows control loop to respond instantly to load steps. Converter uses current mode control and can operate without sense resistor. It features...

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Power Controllers

Power Subsystem Controller manages up to 4 dc-dc converters.

Configurable Model PS-2406 provides power management of up to 4 secondary side dc-dc power converters and offers serial data link to primary side power management ICs. Unit includes functionality required to sequence, monitor, and trim customer-specified dc-dc converters and to handle power system fault conditions. Using integral PI-Link(TM) isolated communications interface, PS-2406 can receive...

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Power Controllers

PoE Controller includes onboard switching regulator.

Offered in 3 x 5 mm DFN package, Model LTC4267 ensures compliance with IEEE 802.3af Power over Ethernet standard and includes onboard 25 kohm signature resistor and classification current source. Internal 100 V power MOSFET protects against inductive voltage spikes, while dual-level inrush current limit allows for seamless interface with legacy PoE systems. Model LTC4267 fits in powered devices...

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PWM Controller simplifies power supply design.
Power Controllers

PWM Controller simplifies power supply design.

Utilizing one primary side MOSFET, Model LT1952 delivers synchronous rectifier control. Programmable volt-second clamp provides safeguard for transformer reset that prevents saturation. Controller simplifies design of 25-300 W power supplies with forward current topology such as isolated 48 V input to 12, 5, or 3.3 V output in industrial or telecom applications. Soft-start function offers...

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