LX1669

Features: 5-Bit Programmable Output For CPU Core Supply Power Solution For Pentium II Processors No Sense Resistor Required For Short-Circuit Current LimitingSoft-Start And Hiccup-Mode Current Limiting Functions Modulated Constant Off-Time Control Mechanism For Fast Transient Response And Simple S...

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LX1669 Picture
SeekIC No. : 004403429 Detail

LX1669: Features: 5-Bit Programmable Output For CPU Core Supply Power Solution For Pentium II Processors No Sense Resistor Required For Short-Circuit Current LimitingSoft-Start And Hiccup-Mode Current Limit...

floor Price/Ceiling Price

Part Number:
LX1669
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/3/28

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Product Details

Description



Features:

5-Bit Programmable Output For CPU Core Supply
Power Solution For Pentium II Processors
No Sense Resistor Required For Short-Circuit Current Limiting
 Soft-Start And Hiccup-Mode Current Limiting Functions
Modulated Constant Off-Time Control Mechanism For Fast Transient Response And Simple System Design
Power Good Flag
Over-Voltage Pin Can Drive SCR Crowbar Or Turn Off Signal Silver-Box Power Supply
Digital-Compatible Inputs (Including VID Pins)



Application

Socket 7 Processor Supplies
Pentium II Processor Supplies
Deschutes CPU & L2-Cache Memory Supplies
Voltage Regulator Modules
General Purpose And Microprocessor DC:DC Supplies



Pinout

  Connection Diagram


Specifications

12V Supply Voltage (VCC12) .................................................................................. 18V
5V Supply Voltage (VCC5) ....................................................................................... 7V
Output Drive Peak Current Source (500ns)....................................................... 1.0A
Output Drive Peak Current Sink (500ns) ........................................................... 1.0A
Input Voltage (SS, VID[0:4]) ................................................................... -0.3V to 6V
Operating Junction Temperature .................................................................... 150°C
Storage Temperature Range ........................................................... -65°C to +150°C
Lead Temperature (Soldering, 10 Seconds) .................................................... 300°C
Note 1. Exceeding these ratings could cause damage to the device. All voltages are with
respect to Ground. Currents are positive into, negative out of the specified
terminal.
Note 2. VCC3 supply is used as input to internal low dropout regulator. Voltages above
3.3V will cause increased thermal dissipation in the package. Power dissipation
should be limited to keep junction temperature below maximum rating.



Description

The LX1669 is a Monolithic Switching Regulator Controller IC 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. It provides a programmable switching regulator output suitable for powering Pentium® II and other processors.




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