Power Management System Supervisor, Monitor and Control Supervisory Circuits Triple Supply Monitors

LTC1536 - Precision Triple Supply Monitor for PCI Applications

Features

  • Simultaneously Monitors 5V, 3.3V and Adjustable Inputs
  • Guaranteed Threshold Accuracy: ±0.75%
  • Low Supply Current: 100µA
  • Internal Reset Time Delay: 200ms
  • Manual Pushbutton Reset Input
  • Active Low and Active High Reset Outputs
  • Active Low “Soft” Reset Output
  • Power Supply Glitch Immunity
  • Guaranteed Reset for Either Vcc3>/=1V or Vcc5 >/=1V
  • Meets PCI tFAIL Timing Specifications Rev 2.1
  • 8-Pin SO and MSOP Packages

Typical Application

LTC1536 Typical Application
LTC1536 Typical Application

Description

The LTC®1536 is designed for PCI local bus applications with multiple supply voltages that require low power, small size, high speed and high accuracy supply monitoring. For 3.3V and 5V supplies that are >500mV below spec or for the condition when the 5V supply falls below the 3.3V supply, the LTC1536 has a very fast response time capable of meeting the PCI tFAIL timing specification. Tight 0.75% threshold accuracy and glitch immunity ensure reliable reset operation without false triggering. The RST output is guaranteed to be in the correct state for Vcc5 or Vcc3 down to 1V. The 100µA typical supply current makes the LTC1536 ideal for power-conscious systems. A manual pushbutton reset input provides the ability to generate a very narrow “soft” reset pulse (100µs typ) or a 200ms reset pulse equivalent to a power-on reset. Both SRST and RST outputs are open-drain and can be OR-tied with other reset sources.

Packaging

For complete and up to date package information and drawings, please refer to our packaging page

SO-8, MS-8

LTC1536 Package Drawing
LTC1536 Package Drawing

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LTC1536CMS8 MSOP 8 C $3.90 $3.10 View
LTC1536CMS8#PBF MSOP 8 C $3.90 $3.10 View
LTC1536CMS8#TR MSOP 8 C $3.16 View
LTC1536CMS8#TRPBF MSOP 8 C $3.16 View
LTC1536CS8 SO 8 C $3.35 $2.65 View
LTC1536CS8#PBF SO 8 C $3.35 $2.65 View
LTC1536CS8#TR SO 8 C $2.71 View
LTC1536CS8#TRPBF SO 8 C $2.71 View
LTC1536IS8 SO 8 I $4.15 $3.50 View
LTC1536IS8#PBF SO 8 I $4.15 $3.50 View
LTC1536IS8#TR SO 8 I $3.56 View
LTC1536IS8#TRPBF SO 8 I $3.56 View
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Click here to view our complete list of demo boards

Applications

  • PCI-Based Systems
  • Desktop Computers
  • Notebook Computers
  • Intelligent Instruments
  • Portable Battery-Powered Equipment
  • Network Servers

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