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Precision Shunt Regulators with Reset in SOT23-3

Industry's Only Shunt Regulator + Reset in SOT Package

Product Details

Key Features

Applications/Uses

Parametric specs for Linear Regulators
VIN (V) (min) 3
VIN (V) (max) 200
Rated ILOAD (mA) 50
Preset VOUT (V) 3
5
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0
ICC (µA) (max) 100
Low Batt./ Pwr. Fail Out No
POK/Reset Thresh. (V) (nom) Vout-7.5%
Watchdog No
Reverse Batt. Protect. No
Oper. Temp. (°C) -40 to +85
Package/Pins SOT23/3
Budgetary
Price (See Notes)
1.58
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Simplified Block Diagram

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Parameters

Parametric specs for Linear Regulators
VIN (V) (min) 3
VIN (V) (max) 200
Rated ILOAD (mA) 50
Preset VOUT (V) 3
5
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0
ICC (µA) (max) 100
Low Batt./ Pwr. Fail Out No
POK/Reset Thresh. (V) (nom) Vout-7.5%
Watchdog No
Reverse Batt. Protect. No
Oper. Temp. (°C) -40 to +85
Package/Pins SOT23/3
Budgetary
Price (See Notes)
1.58

Key Features

  • 100µA to 50mA Shunt Current Range
  • Low Cost
  • 3-Pin SOT23 Package
  • ±1.5% Tolerance on Output Voltage
  • Three Shunt Voltages Available: 5V, 3.3V, 3.0V
  • Precision Power-On Reset Threshold:
    • 1.5% Tolerance Available with Either
    • RESET (MAX6331) or active-low RESET (MAX6330) Outputs
  • 140ms Reset Timeout Period-No External Components Required

Applications/Uses

  • Controllers
  • Critical µP and µC Power Monitoring
  • Household Appliances
  • Intelligent Instruments
  • Portable/Size-Sensitive Equipment

Description

The MAX6330/MAX6331 combine a precision shunt regulator with a power-on reset function in a single SOT23-3 package. They offer a low-cost method of operating small microprocessor (µP)-based systems from high-voltage sources, while simultaneously protecting µPs from power-up, power-down, and brownout conditions.

Both active-low (MAX6330) and active-high (MAX6331) push/pull output versions are available. The output voltage has ±1.5% tolerance. The MAX6330/MAX6331 operate over a wide shunt current range from 100µA to 50mA, and offer very good transient immunity.

A 3-pin SOT23 package allows for a significant reduction in board space and improves reliability compared to multiple-IC/discrete solutions. These devices have a minimum order increment of 2,500 pieces.

Simplified Block Diagram

MAX6330, MAX6331: Typical Operating Circuit MAX6330, MAX6331: Typical Operating Circuit Zoom icon

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .