LP3470 is not recommended for new designs.
This product continues to be in production to support existing customers. Please consider one of these alternatives:
Exact equivalent in functionality and parametrics to the compared device:
LP3470A ACTIVE Ultra-low-power active-low reset IC with programmable delay and 1% reset threshold This device features improvements including lower IQ (0.3 μA), wider input voltage (10 V) and wider temperature range (-40°C to +125°C).

Product details


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  • 5-Pin SOT-23 Package
  • Open-Drain Reset Output
  • Programmable Reset Time-Out Period Using an
    External Capacitor
  • Immune to Short VCC Transients
  • ±1% Reset Threshold Accuracy Over
  • Low Quiescent Current (16 µA typical)
  • Reset Valid Down to VCC = 0.5 V
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The LP3470 device is a micropower voltage supervisory circuit designed to monitor voltages within 1% of reset threshold over temperature. It provides maximum adjustability for power-on-reset (POR) and supervisory functions.

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.

For information on available reset threshold voltage options, see Mechanical, Packaging, and Orderable Information.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 5
Type Title Date
* Datasheet LP3470 Voltage Supervisor With Programmable Delay and 1% Reset Threshold datasheet (Rev. G) Apr. 27, 2016
Application note Migrating Designs to LP3470A Low Iq Voltage Supervisor for Improved Power Supply (Rev. A) Apr. 16, 2020
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application note Maximizing Start-Up Loads w/LM3352 Regulated Buck-Boost Switched Cap Converter (Rev. B) May 06, 2013

Design & development

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Design tools & simulation

SNVM696.ZIP (30 KB) - PSpice Model
SNVM697.TSC (191 KB) - TINA-TI Reference Design
SNVM698.ZIP (7 KB) - TINA-TI Spice Model
SNVMBG1.ZIP (1 KB) - PSpice Model
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SOT-23 (DBV) 5 View options

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