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The UC3874 family of synchronous step-down (Buck) regulators provides high efficiency power conversion from an input voltage range of 4.5 to 36 volts. The UC3874 is tailored for battery powered applications such as laptop computers, consumer products, communications systems, and aerospace which demand high performance and long battery life. The synchronous r.
• Operation to 36V Input Voltage
• Fixed Frequency Average Current Mode Control
• Standby Mode for Improved Efficiency at Light Load
• Drives External N-Channel MOSFETs for Highest Efficiency
• Sleep Mode Current < 50mA
• Complementary 1 Amp Outputs with Regulated Gate Drive Voltage
• LDO (Low Drop Out) Virtual 100% Duty Cycle Operation
• Non-Overlapping Gate Drives
DESCRIPTION
The UC3874 family of synchronous step-down (Buck) regulators provides high efficiency power conversion from an input voltage range of 4.5 to 36 volts. The UC3874 is tailored for battery powered applications such as lap.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | UC3874-2 |
Unitrode |
Step-down (Buck) Controllers |
|
| 2 | UC3871 |
Unitrode |
Resonant Fluorescent Lamp Driver |
|
| 3 | UC3872 |
Unitrode |
Resonant Lamp Ballast Controller |
|
| 4 | UC3873 |
UTC |
LOW COST POWER-SAVING MODE PWM CONTROLLER |
|
| 5 | UC3873B |
UTC |
LOW COST POWER-SAVING MODE PWM CONTROLLER |
|
| 6 | UC3873C |
UTC |
LOW COST POWER-SAVING MODE PWM CONTROLLER |
|
| 7 | UC3873H |
UTC |
LOW COST POWER-SAVING MODE PWM CONTROLLER |
|
| 8 | UC3873HL |
UTC |
LOW COST POWER-SAVING MODE PWM CONTROLLER |
|
| 9 | UC3873L |
UTC |
LOW COST POWER-SAVING MODE PWM CONTROLLER |
|
| 10 | UC3875 |
Unitrode |
Phase Shift Resonant Controller |
|
| 11 | UC3875 |
UTC |
LOW COST POWER-SAVING MODE PWM CONTROLLER |
|
| 12 | UC3875A |
UTC |
LOW COST POWER-SAVING MODE PWM CONTROLLER |
|