FAN53565UC03X

FAN53565UC03X Datasheet

FAN53565 5 A Digitally Programmable TinyBuck Regulator

Part	Datasheet
FAN53565UC03X	FAN53565UC03X (pdf)

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FAN53565 5 A Digitally Programmable TinyBuck Regulator October 2015 FAN53565 5A Digitally Programmable TinyBuck Regulator Features • MHz Fixed-Frequency Operation • 5 A Continuous Output Current Capability • V to V Input Voltage Range • Programmable Slew Rate for Voltage Transitions • I2C -Compatible Interface up to Mbps • PFM Mode for High Efficiency in Light Load. • Internal Soft-Start • Thermal Shutdown and Overload Protection Applications • Application, Graphic, and DSP Processors - ARMTM, TegraTM, OMAP , XSCALE • Hard Disk Drive • Tablets, Ultra-Mobile PCs • Smart Phones • Gaming Devices Additional Information • For the full datasheet, please contact a Fairchild Sales Representative. All trademarks are the property of their respective owners. The FAN53565 is a step-down switching voltage regulator that delivers a digitally programmable output from an input voltage supply of V to V. The output voltage is programmed through an I2C interface which is capable of operating up to MHz. Using a proprietary architecture with synchronous rectification, the FAN53565 is capable of delivering 5A continuous and capable of achieving 92% maximum efficiency, while maintaining a very high efficiency of over 80% at load currents as low as 10 mA. Pulse currents as high as A can be supported by one device option. The regulator operates at a nominal fixed frequency of MHz, which reduces the value of the external components to 330 nH and as low as 44 µF for the output capacitor. Additional output capacitance can be added to improve regulation during load transients without affecting stability. At moderate and light loads, pulse frequency modulation PFM is used to operate the device in power-save mode with a typical quiescent current of 135µA. Even with such a low quiescent current, the part exhibits excellent transient response during large load swings. At higher loads, the system automatically switches to fixed-frequency control, operating at MHz. In shutdown mode, the supply current drops below 1 µA, reducing power consumption. PFM mode can be disabled if constant frequency is desired. EN SDA SCL PGOOD FAN53565 PVIN CIN VOUT SW L1 COUT GND AGND Core Processor System Load Figure Typical Application Ordering Information Power Up Defaults FAN53565UC03X Temperature Range -40 to 85°C Packing Method Tape and Reel 2015 Fairchild Semiconductor Corporation FAN53565 5 A Digitally Programmable TinyBuckTM Regulator

PDF Datasheet Preview

FAN53565 5 A Digitally Programmable TinyBuck Regulator

October 2015

FAN53565 5A Digitally Programmable TinyBuck Regulator

Features
• MHz Fixed-Frequency Operation
• 5 A Continuous Output Current Capability
• V to V Input Voltage Range
• Programmable Slew Rate for Voltage Transitions
• I2C -Compatible Interface up to Mbps
• PFM Mode for High Efficiency in Light Load.
• Internal Soft-Start
• Thermal Shutdown and Overload Protection

Applications
• Application, Graphic, and DSP Processors - ARMTM, TegraTM, OMAP , XSCALE
• Hard Disk Drive
• Tablets, Ultra-Mobile PCs
• Smart Phones
• Gaming Devices

Additional Information
• For the full datasheet, please contact a Fairchild

Sales Representative.

All trademarks are the property of their respective owners.

The FAN53565 is a step-down switching voltage regulator that delivers a digitally programmable output from an input voltage supply of V to V. The output voltage is programmed through an I2C interface which is capable of operating up to MHz.

Using a proprietary architecture with synchronous rectification, the FAN53565 is capable of delivering 5A continuous and capable of achieving 92% maximum efficiency, while maintaining a very high efficiency of over 80% at load currents as low as 10 mA. Pulse currents as high as A can be supported by one device option. The regulator operates at a nominal fixed frequency of MHz, which reduces the value of the external components to 330 nH and as low as 44 µF for the output capacitor. Additional output capacitance can be added to improve regulation during load transients without affecting stability.

At moderate and light loads, pulse frequency modulation PFM is used to operate the device in power-save mode with a typical quiescent current of 135µA. Even with such a low quiescent current, the part exhibits excellent transient response during large load swings. At higher loads, the system automatically switches to fixed-frequency control, operating at MHz. In shutdown mode, the supply current drops below 1 µA, reducing power consumption. PFM mode can be disabled if constant frequency is desired.

EN SDA SCL PGOOD

FAN53565

PVIN

CIN VOUT SW L1

COUT GND

AGND

Core Processor System Load

Figure Typical Application
Ordering Information

Power Up Defaults

FAN53565UC03X

Temperature Range -40 to 85°C

Packing Method Tape and Reel
2015 Fairchild Semiconductor Corporation

FAN53565 5 A Digitally Programmable TinyBuckTM Regulator

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Datasheet ID: FAN53565UC03X 513937