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RC5056M, RC5057, RC5057M

Table of contents:
Info of RC5056M
Info of RC5057
Info of RC5057M

RC5056M, RC5057, RC5057M Selling Leads, Datasheet

MFG:FAI Package Cooled:SOP D/C:98+

RC5056M, RC5057, RC5057M Datasheet download

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Part Number: RC5056M

MFG: FAI

Package Cooled: SOP

D/C: 98+

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RC5057 General Description

The RC5057 is a synchronous mode DC-DC controller IC which provides a highly accurate, programmable output voltage for all Pentium II & III CPU applications and other high-performance processors. The RC5057 features remote voltage sensing, adjustable current limit, and active droop for optimal converter transient response. The RC5057 uses a 5-bit D/A converter to program the output voltage from 1.3V to 3.5V. The RC5057 uses a high level of integration to deliver load currents in excess of 16A from a 5V source with minimal external circuitry. Synchronous-mode operation offers optimum efficiency over the entire specified output voltage range. An on-board precision low TC reference achieves tight tolerance voltage regulation without expensive external components, while active droop permits exact tailoring of voltage for the most demanding load transients. The RC5057 also offers integrated functions including Power Good, Output Enable/ Soft Start and current limiting, and is available in a 16 pin SOIC package.

RC5057 Maximum Ratings

Supply Voltage VCCA to GND	13.5V
Supply Voltage VCCP to GND	15V
Voltage Identification Code Inputs, VID0-VID4	VCCA
Junction Temperature, T_J	150
Storage Temperature	-65 to 150
Lead Soldering Temperature, 10 seconds	300
Power Dissipation, P_D	750mW
Thermal Resistance Junction-to-case, _JC	105/W

RC5057 Features

• Programmable output from 1.3V to 3.5V using an integrated 5-bit DAC
• Remote sense
• Active Droop
• 85% efficiency typical at full load
• Integrated Power Good and Enable/Soft Start functions
• Drives N-channel MOSFETs
• Overcurrent protection using MOSFET sensing
• 16 pin SOIC package
• Meets Intel Pentium II & III specifications using minimum number of external components

RC5057 Typical Application

• Power supply for Pentium® II & III
• VRM for Pentium II & III processor
• Telecom line cards
• Routers, switches & hubs
• Programmable step-down power supply

RC5057 Connection Diagram

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