dc-dc controller
LTC3851: Wide Input Voltage Range Synchronous Step-Down DC/DC Controller
Submitted by Ionela on Tue, 08/19/2008 - 13:57.
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Linear Technology Corporation announces the LTC3851, a wide input range synchronous step-down switching regulator controller that drives all N-channel power MOSFET stages and has coincident or ratiometric tracking. The 4V to 38V input range encompasses a wide variety of applications, including most intermediate bus voltages and battery chemistries. The strong on-board MOSFET gate drivers allow the use of high power external MOSFETs to produce output currents up to 20A with output voltages ranging from 0.8V to 5.5V, making the LTC3851 ideal for point-of-load requirements. |
LTC3862: Multiphase Step-Up DC/DC Controller Delivers High Power
Submitted by Ionela on Thu, 06/26/2008 - 07:24.
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Linear Technology Corporation introduces the LTC3862, a 2-phase step-up (boost) DC/DC controller that delivers high output power in a compact footprint. Up to 12 power stages can be paralleled and clocked out-of-phase to minimize input and output filtering requirements. The 4V to 36V input voltage range and a wide output voltage range that is dependent on the choice of external components covers a broad range of high power boost applications. The LTC3862 can regulate a 48V at 5A output with up to 97% efficiency from an input source ranging from 12V to 36V using only two-phases. |
