SUMMIT Microelectronics: Product Summary: SMB214: High-power, Three-channel Programmable DC-DC System Power Managers

SUMMIT Microelectronics: Product Summary: SMB214

Preliminary Information

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SMB214 Simplified APPLICATION DRAWING: Summit Microelectronics, Inc.

SMB214 SIMPLIFIED APPLICATIONS DRAWING

SMB214 PIN CONFIGURATIONT: Summit Microelectronics, Inc.

SMB214 PINOUTS

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SMB214 : High-power, Three-channel
Programmable DC-DC System Power Managers

FEATURES
	Digital programming of all major parameters via I2C interface and non-volatile memory
		Output voltage setpoint/margining
		Output power-up/down sequencing
		Dynamic voltage control of all outputs
		UV/OV monitoring of all outputs
		Enable/Disable outputs independently
	User friendly Graphical User Interface (GUI)
	Three synchronous step-down output channels
	Integrated RESET monitor
	+2.7V to +6.0V Input Range
	Highly accurate output voltage: <2.5%
	Factory programmable dead times
	0% to 100% Duty Cycle operation
	Undervoltage Lockout (UVLO) with hysteresis
	Operating frequency: 400kHz (SMB214A), 800kHz (SMB214B), 1MHz (SMB214C)

APPLICATIONS
	Car & Marine Navigation Systems
	Set-top Boxes
	TVs
	DDR Memory
	Mobile Computing/PDAs
	Office Equipment
	DMB Systems

INTRODUCTION

The SMB214A/B/C are highly integrated and flexible threechannel power managers designed for use in a wide range of applications. The built-in digital programmability allows system designers to custom tailor the device to suit almost any multichannel power supply application from digital camcorders to set-top boxes. Complete with a user friendly GUI, all programmable settings, including output voltages and input/output voltage monitoring, can be customized with ease.

The SMB214A/B/C integrate all the essential blocks required to implement a complete three-channel power subsystem consisting of three synchronous step-down “buck” controllers. Additionally sophisticated power control/monitoring functions required by complex systems are built-in. These include digitally programmable output voltage set point, powerup/down sequencing, enable/disable, dynamic voltage management and UV/OV monitoring on all channels.

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ORDERING INFORMATION

NOTE 1 - This is a Preliminary Information data sheet that describes a Summit product currently in pre-production with limited characterization

SUMMIT Microelectronics, Inc. reserves the right to make changes to the products contained in this publication in order to improve design, performance or reliability. SUMMIT Microelectronics, Inc. assumes no responsibility for the use of any circuits described herein, conveys no license under any patent or other right, and makes no representation that the circuits are free of patent infringement. Charts and schedules contained herein reflect representative operating parameters, and may vary depending upon a user’s specific application. While the information in this publication has been carefully checked, SUMMIT Microelectronics, Inc. shall not be liable for any damages arising as a result of any error or omission.

SUMMIT Microelectronics, Inc. does not recommend the use of any of its products in life support or aviation applications where the failure or malfunction of the product can reasonably be expected to cause any failure of either system or to significantly affect their safety or effectiveness. Products are not authorized for use in such applications unless SUMMIT Microelectronics, Inc. receives written assurances, to its satisfaction, that: (a) the risk of injury or damage has been minimized; (b) the user assumes all such risks; and (c) potential liability of SUMMIT Microelectronics, Inc. is adequately protected under the circumstances.

Revision 2.0 - This document supersedes all previous versions.

ADOC™ is a registered trademark of Summit Microelectronics Inc.
I2C is a trademark of Philips Corporation.