32V Input Synchronous Step-Down Regulator Delivers 10A from a 9mm x 9mm QFN
The LTC3611 uses internal switches with an RDS(ON) of only 15mOhm and 9mOhm to deliver efficiencies as high as 95%. The LTC3611 can be configured for discontinuous or forced continuous operation. Forced continuous operation reduces noise and RF interference while discontinuous mode provides high efficiency by reducing switching losses at light loads while requiring only 900uA of quiescent current. Additional features include a Power Good voltage monitor, adjustable current limit, output overvoltage protection and programmable soft-start.
The LTC3611EWP is available from stock in a 64-lead, 9mm x 9mm QFN package. An industrial grade version, the LTC3611IWP is tested and guaranteed to operate from a -40°C to 125°C operating junction temperature. All versions are available from stock.
Summary of Features: LTC3611
- 32VIN, 10A Synchronous Buck Converter 9mm x 9mm QFN
- 10A Output Current
- Wide VIN Range = 4.5V to 32V (36V Maximum)
- Integrated N-Channel Power MOSFETs
- True Current Mode Control
- Optimized for High Step-Down Ratios
- Extremely Fast Transient Response
- Stable with Ceramic COUT
- ±1% 0.6V Voltage Reference
- Power Good Output Voltage Monitor
- Adjustable On-Time/Switching Frequency (>1MHz)
- Adjustable Current Limit
- Programmable Soft-Start
- Output Overvoltage Protection
- Optional Short-Circuit Shutdown Timer
- Low Shutdown IQ: 15uA
- Available in a 9mm × 9mm 64-Pin QFN Package
LINEAR TECHNOLOGY GmbH
Linear Technology Corporation, a manufacturer of high performance linear integrated circuits, was founded in 1981, became a public company in 1986 and joined the S&P 500 index of major public companies in 2000. Linear Technology products include high performance amplifiers, comparators, voltage references, monolithic filters, linear regulators, DC-DC converters, battery chargers, data converters, communications interface circuits, RF signal conditioning circuits, uModule(TM) products, and many other analog functions. Applications for Linear Technology's high performance circuits include telecommunications, cellular telephones, networking products such as optical switches, notebook and desktop computers, computer peripherals, video/multimedia, industrial instrumentation, security monitoring devices, high-end consumer products such as digital cameras and MP3 players, complex medical devices, automotive electronics, factory automation, process control, and military and space systems. For more information, visit www.linear.com.
LT, LTC, LTM, Burst Mode and are registered trademarks and uModule is a trademark of Linear Technology Corp. All other trademarks are the property of their respective owners.
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