Analog Devices Inc. LTC3310S Synchronous Step-Down Silent Switcher® 2
Analog Devices Inc. LTC3310S Synchronous Step-Down Silent Switcher® 2 DC-DC Converter is capable of providing up to 10A of output current from a 2.25V to 5.5V input supply. The Silent Switcher 2 architecture combined with internal hot loop bypass capacitors achieve both low EMI and high efficiency at switching frequencies as high as 5MHz. Multi-phasing parallel converters are readily implemented for systems with higher power requirements.
The LTC3310S uses a constant-frequency, peak current mode control architecture for fast transient response. A 500mV reference allows for low voltage outputs, and 100% duty cycle operation delivers low drop out. 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.
The LTC3310S Synchronous Step-Down Silent Switcher DC/DC Converter is available in a compact 18-lead 3mm x 3mm LQFN package.
Features
- Silent Switcher®2 architecture with ultralow EMI emissions
- High efficiency of 4.5mΩ NMOS and 16mΩ PMOS
- Wide bandwidth, fast transient response
- Safely tolerates inductor saturation in overload
- VIN Range of 2.25V to 5.5V
- VOUT Range of 0.5V to VIN
- VOUT Accuracy of ±1%
- Peak current mode control
- 35ns Minimum on-time
- Programmable frequency to 5MHz
- Shutdown current of 1µA
- Precision 400mV enable threshold
- Output soft-start with voltage tracking
- Power good output
- Die temperature monitor
- Configurable for paralleling power stages
- Thermally-enhanced 3mm × 3mm LQFN-18 package
Applications
- Automotive/industrial/communications
- Servers, telecom power supplies
- Distributed DC Power Systems (POL)
- FPGA, ASIC, µP core supplies
Associated Products
Analog Devices Inc. Silent Switcher® Solutions for EMI Compliance
Delivers up to 95% efficiency at 2MHz & ultra-low EMI/EMC emissions.
Analog Devices Inc. LTC3313 Step-Down Silent Switchers®
Small, low-noise, monolithic step-down DC/DC converters in a compact 18-pin 3mm x 3mm LQFN package.
Associated Evaluation Tools
Analog Devices Inc. LTC3310 Demo Board DC3043A
Board facilitates the evaluation of the LTC3310 Synchronous Step-Down Silent Switcher® 2.
Analog Devices Inc. LTC3310S Demo Board DC3021A
Provides a proven design to evaluate the LTC3310S Synchronous Step-Down Silent Switcher® 2.
Analog Devices Inc. LTC3310S Demo Board DC2629A
Demonstrates the features of LTC3310S, a 10A synchronous step-down Silent Switcher® 2 regulator.
Analog Devices Inc. LTC3310 Demo Board DC3042A
Designed to demonstrate the LTC3310, a 10A low voltage synchronous step-down silent switcher.
TYPICAL APPLICATION
