The LTC®3374 is a high efficiency multioutput power supply IC. The DC/DCs consist of eight synchronous buck converters (1A each) all powered from independent 2.25V to 5.5V input supplies.
The DC/DCs may be used independently or in parallel to achieve higher currents of up to 4A per output with a shared inductor. The common buck switching frequency may be programmed with an external resistor, synchronized to an external oscillator, or set to a default internal 2MHz clock. The operating mode for all DC/DCs may be programmed via the MODE pin.
To reduce input noise the buck converters are phased in 90° steps. Precision enable pin thresholds provide reliable power-up sequencing. The LTC3374 is available in a compact 38-lead 5mm × 7mm QFN package as well as a 38-lead TSSOP package.
Part Number | Package | Temp | Price(1-99) | Price (1k)* |
---|---|---|---|---|
LTC3374EFE#PBF | TSSOP-38 | E | $7.10 | $4.97 |
LTC3374EFE#TRPBF | TSSOP-38 | E | $5.03 | |
LTC3374EUHF#PBF | 5x7 QFN-38 | E | $6.64 | $4.65 |
LTC3374EUHF#TRPBF | 5x7 QFN-38 | E | $4.71 | |
LTC3374HFE#PBF | TSSOP-38 | H | $8.51 | $5.96 |
LTC3374HFE#TRPBF | TSSOP-38 | H | $6.02 | |
LTC3374HUHF#PBF | 5x7 QFN-38 | H | $8.00 | $5.60 |
LTC3374HUHF#TRPBF | 5x7 QFN-38 | H | $5.66 | |
LTC3374IFE#PBF | TSSOP-38 | I | $8.16 | $5.71 |
LTC3374IFE#TRPBF | TSSOP-38 | I | $5.77 | |
LTC3374IUHF#PBF | 5x7 QFN-38 | I | $7.64 | $5.35 |
LTC3374IUHF#TRPBF | 5x7 QFN-38 | I | $5.41 |
Part Number | Description | Price |
---|---|---|
DC1953A | LTC3374EUHF Demo Board 8-Channel Parallelable 1A Buck DC/DC | $150.00 |