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NCP6335 Hoja de datos

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The NCP6335 is a synchronous buck converter optimized to supply the different sub systems of portable applications powered by one cell Li−Ion or three cell Alkaline/NiCd/NiMH batteries. The device is able to deliver up to 4.0 A, with programmable output voltage from 0.6 V to 1.4 V. It can share the same output rail with another DC−to−DC converter and works as a transient load helper. Operation at a 3 MHz switching frequency allows the use of small components. Synchronous rectification and automatic PWM/PFM transitions improve overall solution efficiency. The NCP6335 is in a space saving, low profile 2.0 x 1.6 mm CSP−20 package.

Features
• Input Voltage Range from 2.3 V to 5.5 V: Battery and 5 V Rail Powered Applications
• Programmable Output Voltage: 0.6 V to 1.4 V in 6.25 mV Steps
• Modular Output Stage Drive Strength for Increased Efficiency Depending on the Output Current
• 3 MHz Switching Frequency with on Chip Oscillator
• Uses 470 nH Inductor and 2 x 22 F Capacitors for Optimized Footprint and Solution Thickness
• PFM/PWM Operation for Optimum Increased Efficiency
• Low 35 A Quiescent Current
• I2C Control Interface with Interrupt and Dynamic Voltage Scaling Support
• Enable Pins, Power Good/Fail Signaling
• Thermal protections and Temperature Management
• Transient Load Helper: Share the Same Rail with Another DCDC
• Small 2.0 x 1.6 mm / 0.4 mm pitch CSP Package
• These are Pb−Free Devices

Typical Applications
• Smartphones
• Webtablets

 

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