Mfr Part #:

MIC803-44D4VM3-TR

Simple Reset/Power-On Reset supervisor from Microchip Technology with a 4.38V threshold voltage, active-low open drain output, and 1.12s minimum reset timeout in a SOT-23-3 package.

✓ Total Stock: 451 pcs

$ Price Range: $0.75

MIC803-44D4VM3-TR Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Smaxon Electronics ✓ Non-Authorised Inventory information	451 pcs On Request	451 pcs	On Request	1	On Request	On Request	1844+	On Request	On Request

MIC803-44D4VM3-TR Description

Short technical summary and product information.

The MIC803-44D4VM3-TR is a simple reset/power-on reset supervisor IC from Microchip Technology designed to monitor a single voltage rail. It features a preset reset threshold voltage of 4.38V with a typical accuracy of 2.5% over temperature, ensuring reliable system reset during power-up, power-down, and brownout conditions.

The device provides an active-low, open-drain or open-collector output, making it suitable for interfacing with various microcontrollers and logic families. The reset timeout is set to a minimum of 1.12 seconds, with additional timeout options of 20ms and 140ms available in the family. Operating from a VCC range of 1.0V to 5.5V, the MIC803-44D4VM3-TR draws a typical supply current of only 4.5µA at 3.6V, making it ideal for low-power applications.

Housed in a compact SOT-23-3 surface-mount package, this supervisor is designed for space-constrained designs. The operating temperature range spans -40°C to 125°C, supporting industrial and automotive environments. The MIC803-44D4VM3-TR is supplied in tape and reel packaging for automated assembly.

MIC803-44D4VM3-TR Quick Information

Product Type: Supervisor

Series: MIC803

Canonical Name: MIC803-44D4VM3-TR Microchip Technology Single-Voltage Supervisor

Subcategory: Supervisors

MIC803-44D4VM3-TR Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

MIC803-44D4VM3-TR Estimated Pricing

Qty	Low	High
1+	$0.75	$0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

MIC803-44D4VM3-TR Features

Simple reset/power-on reset supervisor IC.
Monitors single voltage rail at 4.38V threshold.
Active-low open drain output for reset signaling.
1.12s minimum reset timeout period.
Operates from 1.0V to 5.5V supply range.

MIC803-44D4VM3-TR Applications

Monitors microprocessor power supply voltage.
Generates reset signals for microcontroller systems.
Suitable for battery-powered portable devices.
Used in industrial control and automotive electronics.
Provides reliable reset in harsh temperature environments.

MIC803-44D4VM3-TR FAQs

6 frequently asked questions generated from this part’s specifications.

What is the reset threshold voltage of the MIC803-44D4VM3-TR?

The reset threshold voltage is preset to 4.38V.

What type of output does this supervisor provide?

It provides an active-low open drain or open collector output.

What is the operating temperature range?

The operating temperature range is -40°C to 125°C.

What package is the MIC803-44D4VM3-TR available in?

It is available in a SOT-23-3 surface-mount package.

What is the typical supply current?

The typical supply current is 4.5µA at 3.6V.

What is the minimum reset timeout?

The minimum reset timeout is 1.12 seconds.

Category	Supervisors
Manufacturer Name	Microchip Technology
Mounting Type	Surface Mount
Number of Voltages Monitored	1
Operating Temperature	-40°C ~ 125°C
Operating Voltage	1.0 - 5.5V
Output	Open Drain or Open Collector
Reset	Active Low
Reset Timeout	1.12s Minimum
Supplier Device Package	SOT-23-3
Supply Current	4.5µA (typical)
Type	Simple Reset/Power-On Reset
Voltage	4.38V