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LP3470  Product Folder

Tiny Power On Reset Circuit
Generic P/N 3470
General
Description		 Features Datasheet Package
& Models		 Samples
& Pricing		 Reliability
Metrics		 Application
Notes

Parametric Table Parametric Table
Temperature Min (deg C) -20 
Temperature Max (deg C) 85 
Multiple Output Capability No 
On/Off Pin No 
Error Flag Yes 
InputMin Voltage (Volt) .50 
InputMax Voltage (Volt) 5 
Output Current (mA) - 
Output Voltage (Volt) - 
Adjustable Output No 
Switching Frequency (Hz) - 
Adj Switch Frequency - 
Sync Pin - 
Power on Reset - 
Watchdog - 
Power Fail Input - 
Manual Reset - 

Datasheet

TitleSize in KbytesDate
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Download
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LP3470 Tiny Power On Reset Circuit 151 Kbytes 14-Sep-00 View Online Download Receive via Email
LP3470 Tiny Power On Reset Circuit (JAPANESE)
 260 Kbytes   View Online Download Receive via Email

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Package Availability, Models, Samples & Pricing

Part NumberPackageStatusModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
TypePinsMSL/Lead-Free AvailabilityLead
Time		QtySPICEIBISQty$US each
LP3470IM5-2.63SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.58reel
of
1000		D25C
ZXTT
13-15 weeks100000
LP3470IM5-2.93SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$0.58reel
of
1000		D26C
ZXTT
13-15 weeks100000
LP3470IM5-3.08SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.58reel
of
1000		D28C
ZXTT
13-15 weeks100000
LP3470IM5-3.65SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$0.58reel
of
1000		D37C
ZXTT
13-15 weeks100000
LP3470IM5-4.00SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.58reel
of
1000		D29C
ZXTT
13-15 weeks100000
LP3470IM5-4.38SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.58reel
of
1000		D30C
ZXTT
13-15 weeks100000
LP3470IM5-4.63SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$0.58reel
of
1000		D31C
ZXTT
13-15 weeks100000
LP3470M5-2.63SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.53reel
of
1000		D25B
ZXTT
13-15 weeks100000
LP3470M5-2.93SOT-235StatusFull productionN/AN/A24 Hour Samples1K+$0.53reel
of
1000		D26B
ZXTT
13-15 weeks100000
LP3470M5-3.08SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.53reel
of
1000		D28B
ZXTT
13-15 weeks100000
LP3470M5-3.65SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.53reel
of
1000		D37B
ZXTT
13-15 weeks100000
LP3470M5-4.00SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$0.53reel
of
1000		D29B
ZXTT
13-15 weeks100000
LP3470M5-4.38SOT-235StatusFull productionN/AN/ASamples1K+$0.53reel
of
1000		D30B
ZXTT
13-15 weeks100000
LP3470M5-4.63SOT-235StatusFull productionN/AN/ASamples
Buy Now		1K+$0.53reel
of
1000		D31B
ZXTT
13-15 weeks100000
LP3470IM5X-2.63SOT-235StatusFull productionN/AN/A 1K+$0.58reel
of
3000		D25C
ZXTT
13-15 weeks100000
LP3470IM5X-2.93SOT-235StatusFull productionN/AN/A 1K+$0.58reel
of
3000		D26C
ZXTT
13-15 weeks100000
LP3470IM5X-3.08SOT-235StatusFull productionN/AN/A 
Buy Now		1K+$0.58reel
of
3000		D28C
ZXTT
13-15 weeks100000
LP3470IM5X-3.65SOT-235StatusFull productionN/AN/A 
Buy Now		1K+$0.58reel
of
3000		D37C
ZXTT
13-15 weeks100000
LP3470IM5X-4.00SOT-235StatusFull productionN/AN/A 
Buy Now		1K+$0.58reel
of
3000		D29C
ZXTT
13-15 weeks100000
LP3470IM5X-4.38SOT-235StatusFull productionN/AN/A 
Buy Now		1K+$0.58reel
of
3000		D30C
ZXTT
13-15 weeks100000
LP3470IM5X-4.63SOT-235StatusFull productionN/AN/A 1K+$0.58reel
of
3000		D31C
ZXTT
14-16 weeks100000
LP3470M5X-2.63SOT-235StatusFull productionN/AN/A 1K+$0.53reel
of
3000		D25B
ZXTT
13-15 weeks100000
LP3470M5X-2.93SOT-235StatusFull productionN/AN/A 1K+$0.53reel
of
3000		D26B
ZXTT
13-15 weeks10000
LP3470M5X-3.08SOT-235StatusFull productionN/AN/A 
Buy Now 		1K+$0.53reel
of
3000		D28B
ZXTT
13-15 weeks100000
LP3470M5X-3.65SOT-235StatusFull productionN/AN/A 
Buy Now		1K+$0.53reel
of
3000		D37B
ZXTT
13-15 weeks100000
LP3470M5X-4.00SOT-235StatusFull productionN/AN/A 
Buy Now		1K+$0.53reel
of
3000		D29B
ZXTT
13-15 weeks100000
LP3470M5X-4.38SOT-235StatusFull productionN/AN/A 
Buy Now		1K+$0.53reel
of
3000		D30B
ZXTT
13-15 weeks100000
LP3470M5X-4.63SOT-235StatusFull productionN/AN/A 
Buy Now		1K+$0.53reel
of
3000		D31B
ZXTT
13-15 weeks100000

General Description

The LP3470 is a micropower CMOS voltage supervisory circuit designed to monitor power supplies in microprocessor (µP) and other digital systems. It provides maximum adjustability for power-on-reset (POR) and supervisory functions. It is available in the following six standard reset threshold voltage (VRTH) options: 2.63V, 2.93V, 3.08V, 3.65V, 4.00V, 4.38V, and 4.63V. If other voltage options between 2.4V and 5.0V are desired please contact your National Semiconductor representative.

The LP3470 asserts a reset signal whenever the VCC supply voltage falls below a reset threshold. The reset time-out period is adjustable using an external capacitor. Reset remains asserted for an interval (programmed by an external capacitor) after VCC has risen above the threshold voltage.

The device is available in the tiny SOT23-5 package.

Features

  • Tiny SOT23-5 Package
  • Open Drain Reset# Output
  • Programmable Reset Timeout Period Using an External Capacitor
  • Immune to Short VCC Transients

Key Specification

  • ±1% Reset Threshold Accuracy Over Temperature
  • Standard Reset Threshold Voltages: 2.63V, 2.93V, 3.08V, 3.65V, 4.00V, 4.38V, and 4.63V
  • Custom Reset Threshold Voltages: For other voltages between 2.4V and 5.0V contact your National Semiconductor representative
  • Very Low Quiescent Current (16 µA typical)
  • Guaranteed Reset# valid down to VCC=0.5V

Applications

  • Critical µP and µC Power Monitoring
  • Intelligent Instruments
  • Computers
  • Portable/Battery-Powered Equipments

Reliability Metrics

Part Number Process Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LP3470IM5-2.63CS10031940015509000004254464808
LP3470IM5-2.93CS10031940015509000004254464808
LP3470IM5-3.08CS10031940015509000004254464808
LP3470IM5-3.65CS10031940015509000004254464808
LP3470IM5-4.00CS10031940015509000004254464808
LP3470IM5-4.38CS10031940015509000004254464808
LP3470IM5-4.63CS10031940015509000004254464808
LP3470IM5X-2.63CS10031940015509000004254464808
LP3470IM5X-2.93CS10031940015509000004254464808
LP3470IM5X-3.08CS10031940015509000004254464808
LP3470IM5X-3.65CS10031940015509000004254464808
LP3470IM5X-4.00CS10031940015509000004254464808
LP3470IM5X-4.38CS10031940015509000004254464808
LP3470IM5X-4.63CS10031940015509000004254464808
LP3470M5-2.63CS10031940015509000004254464808
LP3470M5-2.93CS10031940015509000004254464808
LP3470M5-3.08CS10031940015509000004254464808
LP3470M5-3.65CS10031940015509000004254464808
LP3470M5-4.00CS10031940015509000004254464808
LP3470M5-4.38CS10031940015509000004254464808
LP3470M5-4.63CS10031940015509000004254464808
LP3470M5X-2.63CS10031940015509000004254464808
LP3470M5X-2.93CS10031940015509000004254464808
LP3470M5X-3.08CS10031940015509000004254464808
LP3470M5X-3.65CS10031940015509000004254464808
LP3470M5X-4.00CS10031940015509000004254464808
LP3470M5X-4.38CS10031940015509000004254464808
LP3470M5X-4.63CS10031940015509000004254464808

For more information on Reliablitity Metrics, please click here.


Application Notes

TitleSize in KbytesDate
View Online
Download
Receive via Email
AN-1144: Application Note 1144 Maximizing Start-Up Loads with the LM3352 Regulated Buck/Boost Switched Capacitor Converter 62 Kbytes 25-Sep-02 View Online Download Receive via Email

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 15-Jan-2004]

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