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ANALOG DEVICES LTC3311SEV#TRMPBF

DC/DC POL Converter, Adjustable, Synchronous Buck, 2.25 - 5.5 V, 500 mV to 5.5 V/12.5 A out, LQFN-EP

ANALOG DEVICES LTC3311SEV#TRMPBF
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Manufacturer Part No:
LTC3311SEV#TRMPBF
Order Code:
4033652
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Product Overview

LTC®3311S is a very small low noise monolithic step-down DC/DC converter. This device employs silent switcher 2 architecture with internal hot loop bypass capacitors to achieve both low EMI and high efficiency at switching frequencies as high as 5MHz. For systems with higher power requirements, multi-phasing parallel converters is readily implemented. The LTC3311S uses a constant frequency, peak current mode control architecture for fast transient response. A 500mV reference allows for low voltage outputs. Its 100% duty cycle operation delivers low dropout. Other features include a power good signal when the output is in regulation, precision enable threshold, output overvoltage protection, thermal shutdown, a temperature monitor, clock synchronization, mode selection and output short circuit protection. Typical applications are automotive/industrial/communications, servers, telecom power supplies, distributed DC power systems (POL), FPGA, ASIC, µP core supplies.
  • Ultralow EMI emissions, 4.5mohm NMOS and 16mohm PMOS
  • Wide bandwidth, fast transient response, die temperature monitor
  • Safely tolerates inductor saturation in overload, peak current mode control
  • Operating supply voltage (VIN) of 2.25V to 5.5V, VOUT range from 0.5V to VIN
  • VOUT accuracy of ±1% with remote sense, Temperature range from –40°C to 125°C
  • Minimum on-time is 35ns
  • Shutdown current of 1µA, output soft-start with voltage tracking
  • Configurable for paralleling power stages in forced continuous mode
  • 18-lead (3mm × 3mm) LQFN (laminate package with QFN footprint) package
  • Pin compatible with LTC3310/LTC3310S and LTC3311

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