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MAX6330, MAX6331
Precision Shunt Regulators with Reset in SOT23-3
Industry's Only Shunt Regulator + Reset in SOT Package
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Status
Active: In Production.
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.
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Data Sheet
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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
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Applications/Uses
- Automotive Electronics
- Controllers
- Critical µP and µC Power Monitoring
- Household Appliances
- Intelligent Instruments
- Portable/Size-Sensitive Equipment
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Key Specifications:
| Linear Regulators |
| Part Number |
Regulators |
VIN
(V) |
VIN
(V) |
Preset VOUT
(V) |
VDROPOUT @Rated ILOAD
(V) |
Rated ILOAD
(mA) |
ICC
(µA) |
Low Batt./ Pwr. Fail Out |
POK/Reset Thresh.
(V) |
Watchdog |
Reverse Batt. Protect. |
Oper. Temp.
(°C) |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| min |
max |
typ |
max |
nom |
max w/pins |
See Notes |
| MAX6330 |
1 |
3 |
200 |
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0 |
50 |
100 |
No |
Vout-7.5% |
No |
No |
-40 to +85 |
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8 |
$1.24 @1k |
| MAX6331 |
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$1.24 @1k |
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See All Linear Regulators (146)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
 Typical Operating Circuit
Notes and Comments
Wide 100µA to 50mA shunt current range, push-pull RESET (MAX6330)
push-pull RESET (MAX6331)
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Information Index
Document Ref.: 19-1348
Rev 1;
2006-04-03
This page last modified: 2007-07-19
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