LTC3617IUDD#PBF

LTC3617 is a high efficiency monolithic synchronous buck regulator utilizing a current mode, constant frequency architecture. The operating frequency is externally programmable upto 4MHz, allowing the use of small surface mount inductors. For switching-noise-sensitive applications, it can be synchronized to an external clock up to 4MHz. Forced continuous mode operation in the device reduces noise and RF interference. Adjustable external compensation allows the transient response to be optimized over a wide range of loads and output capacitors. The internal synchronous switch increases efficiency and eliminates the need for an external catch diode, minimizing external component count and board space. It is widely used in application such as DDR termination, supports DDR, DDR2 and DDR3 standards, tracking supplies etc.

• ±6A output current, high efficiency
• Input voltage range is 2.25V to 5.5V
• ±10mV output voltage accuracy
• Optimized for low output voltages down to 0.5V
• Integrated buffer for VTTR = VDDQIN • 0.5
• Optional internal compensation, internal soft-start
• Power good status output, input overvoltage protected
• Synchronization frequency range is 0.3MHz to 4MHz
• Operating temperature is -40°C to 125°C
• Package style is 24-lead plastic QFN

Notes

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