Electronicdesign 2121 Xl 04 Texas Instruments 3
Electronicdesign 2121 Xl 04 Texas Instruments 3
Electronicdesign 2121 Xl 04 Texas Instruments 3
Electronicdesign 2121 Xl 04 Texas Instruments 3
Electronicdesign 2121 Xl 04 Texas Instruments 3

12V Dual-Channel Buck Converter Integrates MOSFETs

Feb. 1, 2010
TPS54290 SWIFT 12V synchronous dual buck converter supports inputs ranging from 4.5V to 18V and delivers output voltages as low as 0.8V with a 90% efficiency
Forecasting 35% worth of board-space savings, the TPS54290 SWIFT 12V synchronous dual buck converter supports inputs ranging from 4.5V to 18V and delivers output voltages as low as 0.8V with a 90% efficiency. The device integrates four MOSFETs and operates at a fixed frequency of 300 kHz. Otherwise similar, the TPS54291 and TPS54292 provide switching frequencies of 600 kHz and 1.2 MHz, respectively. Other features include a current mode control that simplifies external compensation and 180º out-of-phase operation to minimize ripple current through the input capacitor. Pricing for the TPS54290/91/92 SWIFT converters is $2.95 each/1,000. TEXAS INSTRUMENTS INC., Dallas, TX. (800) 477-8924.

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