LTC3374AIUHF#PBF

LTC3374A is a multioutput power supply IC consisting of eight synchronous 1A buck converter. It has higher efficiency, improved output voltage accuracy and an added overvoltage (OV) indicator. The DC/DCs may be used independently or in parallel to achieve higher output currents of upto 4A 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 simplify power up sequencing. It is used in application such as general purpose multichannel power supplies, industrial/automotive/communications etc.

• All DC/DCs have 0.8V to VIN output range
• ±1% VFB accuracy, for buck 1 (1A to 4A)
• ±1% PGOOD accuracy
• Precision enable pin thresholds for autonomous sequencing
• 1MHz to 3MHz programmable/synchronizable oscillator frequency (2MHz default)
• Die temperature monitor output
• Pin-compatible with LTC3374
• Operating temperature is -40°C to 125°C
• Package style is 38-lead plastic QFN

Notes

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