DatasheetsPDF.com

LX1662

Part Number	LX1662
Manufacturer	Microsemi Corporation
Description	SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC
Published	Mar 30, 2005
Detailed Description	L I N D O C # : 1662 LX1662/62A, LX1663/63A SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC T H E I N F I N I...
Datasheet	LX1662 PDF File

Overview

L I N D O C # : 1662 LX1662/62A, LX1663/63A SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC T H E I N F I N I T E P O W E R O F I N N O VA T I O N P R O D U C T I O N D A T A S H E E T DESCRIPTION The LX1662/62A and LX1663/63A are Monolithic Switching Regulator Controller IC’s designed to provide a low cost, high performance adjustable power supply for advanced microprocessors and other applications requiring a very fast transient response and a high degree of accuracy.
Short-Circuit Current Limiting without Expensive Current Sense Resistors.
Current-sensing mechanism can use PCB trace resistance or the parasitic resistance of the main inductor.
The LX1662A and LX1663A have reduced current sense comparator threshold for optimum performance using a PCB trace.
For applications requiring a high degree of accuracy, a conventional sense resistor can be used to sense current.
Programmable Synchronous Rectifier Driver for CPU Core.
The main output is adjustable from 1.
3V to 3.
5V using a 5-bit code.
The IC can read a VID signal set by a DIP switch on the motherboard, or hardwired into the processor’s package (as in the case of Pentium® Pro and Pentium II processors).
The 5-bit code adjusts the output voltage between 1.
30 and 2.
05V in 50mV increments and between 2.
0 and 3.
5V in 100mV increments, conforming to the Intel Corporation specification.
The device can drive dual MOSFET’s resulting in typical efficiencies of 85 - 90% even with loads in excess of 10 amperes.
For cost sensitive applications, the bottom MOSFET can be replaced with a Schottky diode (non-synchronous operation).
Smallest Package Size.
The LX1662 is available in a narrow body 14-pin surface mount IC package for space sensitive applications.
The LX1663 provides the additional functions of Over Voltage Protection (OVP) and Power Good (PWRGD) output drives for applications requiring output voltage monitoring and protection functions.
Ultra-Fast Transient Response Reduces System Cost.
The...

Similar Datasheet

LX1660 ADVANCED PWM CONTROLLER - Microsemi Corporation
LX1661 ADVANCED PWM CONTROLLER - Microsemi Corporation
LX1662 SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC - Microsemi Corporation
LX1662A SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC - Microsemi Corporation
LX1663 SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC - Microsemi Corporation
LX1663A SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC - Microsemi Corporation
LX1664 DUAL OUTPUT PWM CONTROLLERS WITH 5-BIT DAC - Microsemi Corporation
LX1664A DUAL OUTPUT PWM CONTROLLERS WITH 5-BIT DAC - Microsemi Corporation
LX1665 DUAL OUTPUT PWM CONTROLLERS WITH 5-BIT DAC - Microsemi Corporation
LX1665A DUAL OUTPUT PWM CONTROLLERS WITH 5-BIT DAC - Microsemi Corporation

@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)