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LTC3649IUFD#PBF - 

DC-DC Switching Sync- Buck (Step Down) Regulator, Adj., 3.1V-60Vin, 0V-59.5V/4A out, 1 MHz, QFN-28

LTC3649IUFD#PBF - DC-DC Switching Sync- Buck (Step Down) Regulator, Adj., 3.1V-60Vin, 0V-59.5V/4A out, 1 MHz, QFN-28

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製造商產品編號:
LTC3649IUFD#PBF
訂購代碼:
2524390
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產品總覽

The LTC3649IUFD#PBF is a 60V, 4A synchronous step-down regulator with rail-to-rail programmable output in 28 pin QFN package. It features a single resistor programmable output voltage, internal compensation and high efficiencies over a wide VOUT range. It operates from an input voltage range of 3.1V to 60V and provides an adjustable rail-to-rail output range from (VIN - 0.5V) to ground while delivering up to 4A of output current. The switching frequency is also adjusted with an external resistor. A user-selectable mode input is provided to allow user to trade off ripple noise for efficiency at light loads, burst mode operation provides highest efficiency at light loads, while forced continuous mode provides low output ripple. The MODE/ SYNC pin can also be used to allow the user to synchronize the switching frequency to an external clock. It operates with a peak current mode architecture that allows for fast transient response with inherent cycle-to-cycle current limit protection.
  • Integrated 110mohm top N-channel/50mohm bottom N-channel MOSFETs
  • 95% efficiency with 12VIN and 5VOUT
  • Regulated IQ is 440µA, shutdown IQ is 15µA
  • Accurate current monitoring (±4%) without sense resistor
  • Accurate resistor programmable frequency (300KHz to 3MHz) with ±50% frequency sync range
  • Accurate programmable output current
  • Input voltage regulation for MPPT applications, ±0.8% output voltage accuracy
  • Programmable output current limit, current monitoring and input voltage regulation
  • Internal compensation and programmable soft-start, overtemperature protection
  • Operating temperature range from -40°C to 125°C

應用

Power Management, Industrial, Automotive

產品訊息

:
Synchronous Buck (Step Down)
:
3.1V
:
60V
:
1Outputs
:
QFN
:
28Pins
:
4A
:
0V
:
59.5V
:
1MHz
:
125°C
:
-
:
-
:
MSL 1 - Unlimited
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