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ANALOG DEVICES LTC3856EUH#PBF
DC/DC Controller, Synchronous Buck (Step Down), 4.5V to 38V, 1 Output, 770kHz, QFN-EP-32
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- ANALOG DEVICES ANALOG DEVICES
- Manufacturer Part No:
- LTC3856EUH#PBF
- Order Code:
- 4409563
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- Technical Datasheet:
- LTC3856EUH#PBF Datasheet
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Product Overview
LTC3856EUH#PBF is a 2-phase synchronous step-down DC/DC controller with diff amp. It is a single output, dual channel PolyPhase synchronous step-down DC/DC controller that drives all N-channel power MOSFET stages. This device includes a high speed differential amplifier for remote output voltage sense. Power loss and supply noise are minimized by operating the two controller output stages out-of-phase and up to 12-phase operation can be achieved. The LTC3856 monitors the output current by sensing the voltage drop across the output inductor (DCR) or by using a sense resistor. DCR temperature compensation maintains an accurate current sense threshold over a broad temperature range. A constant-frequency, current mode architecture allows a phase-lockable frequency of up to 770KHz. Application includes telecom and datacom systems, industrial and medical instruments, DC power distribution systems, computer systems.
- PolyPhase® Controller reduces i/p and o/p capacitance and power supply induced noise
- Input voltage range from 4.5 to 38V (TA = 25°C)
- Output voltage range from 0.6 to 5.0V (TA = 25°C, VIN = 15V)
- ±0.75%, 0.6V reference voltage accuracy, high efficiency up to 95%
- Programmable Burst Mode® operation or stage Shedding™ for highest light load efficiency
- Active voltage positioning (AVP), RSENSE or DCR current sensing
- Programmable DCR temperature compensation
- Nominal frequency range from 450 to 550KHz (VFREQ = 1.2V, TA = 25°C)
- Adjustable soft-start or VOUT tracking, stackable for up to 12-phase operation
- 32 lead plastic QFN package, operating junction temperature range from -40°C to 125°C
Footnotes
ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party
Product Information
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- Current
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- 4.5V
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- 38V
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- 1Outputs
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- 94%
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- QFN-EP
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- 32Pins
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- 770kHz
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- Synchronous Buck (Step Down)
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- -40°C
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- 125°C
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Technical Documents (1)
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73 deliver in 3-4 business days from our UK warehouse
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¥1,570.22
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¥1,727.24
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| 1+ | ¥1,570.22 (¥1,727.24) | ( ) |
| 10+ | ¥1,200.89 (¥1,320.98) | ( ) |
| 73+ | ¥1,076.12 (¥1,183.73) | ( ) |
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| 292+ | ¥862.53 (¥948.78) | ( ) |
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| 1022+ | ¥793.72 (¥873.09) | ( ) |
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