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LP3470A
  • LP3470A
  • LP3470A

LP3470A

ACTIVE

Ultra-low-power active-low reset IC with programmable delay and 1% reset threshold

Texas Instruments LP3470A Product Info

1 April 2026 3

Parameters

Rating

Catalog

Number of supplies monitored

1

Threshold voltage 1 (typ) (V)

2.63, 2.75, 2.93, 3.08, 3.65, 4, 4.38, 4.63

Features

Manual reset capable, Negative Voltage Monitoring, Reset time delay, Undervoltage monitor only, Wide input voltage

Reset threshold accuracy (%)

1, 1.5

Iq (typ) (mA)

0.0003

Output driver type/reset output

Active-low, Open-drain

Watchdog timer WDI (s)

None

Supply voltage (min) (V)

0.9

Supply voltage (max) (V)

10

Operating temperature range (°C)

-40 to 125

Package

SOT-23 (DBV)-5-8.12 mm² 2.9 x 2.8

Features

  • Pin-to-pin compatible with LP3470
  • 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 (typical)
  • Ultra-low quiescent current (0.3 µA typical)
  • RESET valid down to VCC = 0.95 V
  • Pin-to-pin compatible with LP3470
  • 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 (typical)
  • Ultra-low quiescent current (0.3 µA typical)
  • RESET valid down to VCC = 0.95 V

Description

The LP3470A device is a micropower voltage supervisory circuit designed to monitor voltages within 1% of reset threshold overtemperature and is pin-to-pin compatible with existing TI device LP3470. The LP3470A device provides accurate, nano-power voltage monitoring with programmable delay.

The LP3470A 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 plus hysteresis.

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

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