LM3723EM5-4.63 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
Texas Instruments LM3723EM5-4.63 is a single-channel voltage supervisor and reset IC with a fixed 4.63 V threshold in a 5-pin SOT-23 package. It generates a system reset signal whenever the monitored supply drops below the threshold, protecting microcontrollers from brown-out conditions. Compact and easy to integrate in space-constrained embedded power management circuits.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- LM3723EM5-4.63 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 4.63 V threshold voltage supervisor providing precise brown-out reset detection without external resistors
- Single-channel supervisory function in a 5-pin SOT-23 package for minimal PCB footprint in portable and space-constrained designs
- Dedicated voltage supervisor architecture ensuring reliable microcontroller and DSP reset during power-supply undervoltage events
Applications
The LM3723EM5-4.63 is used to supervise 5 V power rails in microcontroller-based industrial control boards, consumer electronics, and communication equipment, asserting a clean reset pulse whenever the supply droops below 4.63 V. Its tiny 5-pin SOT-23 footprint makes it suitable for battery-operated devices and tight PCB layouts where a discrete reset supervisor must not occupy more than a few square millimetres.
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
At what supply threshold does the LM3723EM5-4.63 assert a reset signal, and how accurately is that threshold maintained?
The LM3723EM5-4.63 asserts its active reset output when the monitored supply falls below the fixed 4.63 V threshold, which is factory-trimmed to tight tolerance, typically within ±2%, ensuring consistent brown-out detection without requiring an external voltage-divider network across production units.
How does the fixed-threshold design of the LM3723EM5-4.63 reduce board-level component count compared to adjustable supervisors?
Because the 4.63 V threshold is preset internally, the LM3723EM5-4.63 eliminates the 2 external resistors normally required by an adjustable supervisor to set the detection level, reducing BOM cost, removing resistor-tolerance error from the trip point, and freeing PCB area in the 5-pin SOT-23 footprint.
Which microcontroller or DSP reset scenarios is the LM3723EM5-4.63 best suited to handle in 5 V powered industrial designs?
The LM3723EM5-4.63 is best suited for detecting gradual supply sag caused by inrush events, motor starting transients, or aging voltage regulators that pull a 5 V rail below 4.63 V, where it generates a deterministic reset to prevent corrupted firmware execution, EEPROM write errors, or undefined peripheral states in industrial PLCs and motor-drive controllers.
What procurement considerations apply when sourcing the end-of-life LM3723EM5-4.63 for long-life industrial equipment maintenance?
With a YTEOL of 0 indicating end-of-life status, buyers should verify stock date codes, order at least a 2-year supply buffer, and evaluate pin-compatible 5-pin SOT-23 supervisors from other vendors that support the same 4.63 V threshold or an equivalent level within ±100 mV to ensure drop-in compatibility for field repair.
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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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