MAX6331:Precision Shunt Regulators with Reset in SOT23-3

Industry's Only Shunt Regulator + Reset in SOT Package

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.

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
MAX6330, MAX6331: Typical Operating Circuit
MAX6330, MAX6331: Typical Operating Circuit
Applications/Uses
  • Controllers
  • Critical µP and µC Power Monitoring
  • Household Appliances
  • Intelligent Instruments
  • Portable/Size-Sensitive Equipment
DataSheet
titleDownload file
MAX6330-MAX6331 Data SheetMAX6330-MAX6331.pdf
Parametrics
Part NumberRegulatorsVIN
(V)
VIN
(V)
Preset VOUT
(V)
VDROPOUT @Rated ILOAD
(V)
Rated ILOAD
(mA)
Rated ILOAD
(mA)
ICC
(µA)
Low Batt./ Pwr. Fail OutPOK/Reset Thresh.
(V)
WatchdogReverse Batt. Protect.Oper. Temp.
(°C)
Package/PinsBudgetary
Price
minmaxtypmaxnomSee Notes
MAX6330132003
3.3
5
05050100NoVout-7.5%NoNo-40 to +85SOT/3$1.42 @1k
MAX6331SOT/3$1.40 @1k
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX6331LUR+ActiveSOT,;3 pin;8 mm²-40°C to +85°CLead Free
MAX6331LUR+TActiveSOT,;3 pin;8 mm²-40°C to +85°CLead Free
MAX6331LUR-TNo Longer AvailableMAX6331LUR+TSOT,;3 pin;8 mm²-40°C to +85°CNo
MAX6331SUR+TActiveSOT,;3 pin;8 mm²-40°C to +85°CLead Free
MAX6331SUR-TNo Longer AvailableMAX6331SUR+TSOT,;3 pin;8 mm²-40°C to +85°CNo
MAX6331TUR+TActiveSOT,;3 pin;8 mm²-40°C to +85°CLead Free
MAX6331TUR-TNo Longer AvailableMAX6331TUR+TSOT,;3 pin;8 mm²-40°C to +85°CNo
MAX6330-MAX6331.pdf MAX6331
典型工作电路 MAX6331