LM3722EM5-4.63 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
Texas Instruments LM3722EM5-4.63 is a precision voltage supervisor and reset IC in a 5-pin SOT-23 package. It monitors a 4.63V threshold with a fixed reset output for system reliability. Compact and low-power, it suits microcontroller and processor reset circuitry in space-constrained designs.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- LM3722EM5-4.63 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 4.63V threshold voltage supervisor with precise reset output for reliable power-on initialization in processor-based systems
- 5-pin SOT-23 package occupies minimal board area, enabling integration even in the smallest embedded controller layouts
- Single-channel supervisory function with no adjustable components required, simplifying BOM and reducing design complexity
- Low quiescent current consumption minimizes power draw in battery-operated and energy-efficient embedded systems
Applications
The LM3722EM5-4.63 is used in microprocessor and microcontroller reset circuits where a reliable 4.63V power-good threshold is needed to assert reset during brownout or power-up events. It suits industrial control boards, communication equipment, and consumer electronics that require deterministic startup sequencing. Its tiny SOT-23 footprint makes it ideal for portable devices and compact PCBs with limited real estate for supervisory circuitry.
Specifications
| YTEOL | 0 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G5 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1V |
| Supply Voltage-Nom (Vsup) | 2.5V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.953mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +4.63V |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What voltage threshold does LM3722EM5-4.63 supervise and what happens when the supply drops below it?
The LM3722EM5-4.63 monitors a fixed 4.63V threshold. When the supply voltage falls below this level, the IC asserts the reset output signal, holding the connected microcontroller or processor in reset until the supply recovers and stabilizes above the threshold, ensuring the system does not run with corrupted state during brownout events.
How does LM3722EM5-4.63 simplify reset circuit design compared to using a comparator with external resistors?
The LM3722EM5-4.63 integrates a precision voltage reference, comparator, and reset output driver in a single 5-pin SOT-23 package, eliminating the need for external resistor dividers, capacitors, and reference diodes. This reduces BOM cost, saves approximately 4-6 passive components, and eliminates threshold drift caused by resistor tolerances and temperature coefficients.
What package does LM3722EM5-4.63 use and what are its PCB footprint dimensions?
The LM3722EM5-4.63 comes in a 5-pin SOT-23 (TSOP5) package with a body approximately 2.9mm x 1.3mm and a height of 1.0mm. This compact surface-mount package supports high-density PCB placement and is compatible with standard reflow soldering, making it suitable for automated assembly lines in consumer electronics and IoT device production.
In what types of systems is a 4.63V reset threshold specifically useful compared to 3.3V or 5V supervisors?
A 4.63V reset threshold is useful in 5V systems where the microcontroller requires a voltage of at least 4.5V to 4.7V for reliable operation with internal Flash or EEPROM programming. Supervisors with 3.3V thresholds would allow the system to run at dangerously low voltages, risking data corruption, while the 4.63V threshold provides an 8% margin below the 5V nominal rail.
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Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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