BU4318FVE-TR The ROHM Semiconductor BU4318FVE-TR is a supervisory circuit designed for power monitoring applications. It features a 1.8V threshold voltage and operates within a temperature range of -40°C to 125°C.
Mfr Part #:

BU4318FVE-TR

Available from 1 distributors
Mfr Name: ROHM Semiconductor
ROHM Semiconductor
The ROHM Semiconductor BU4318FVE-TR is a supervisory circuit designed for power monitoring applications. It features a 1.8V threshold voltage and operates within a temperature range of -40°C to 125°C.
✓ Total Stock: 990 pcs
$ Price Range: $0.75

BU4318FVE-TR Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
990 pcs
990 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

BU4318FVE-TR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Accuracy
Mounting Type
Number of Voltages Monitored
Operating Temperature
Output
Power Dissipation
Quiescent Current
Reset
Reset Timeout
Supplier Device Package
Type
Voltage

BU4318FVE-TR Description

Short technical summary and product information.

The BU4318FVE-TR from ROHM Semiconductor is a supervisory circuit designed to monitor power supply conditions. It features a nominal voltage threshold of 1.8V, with undervoltage and overvoltage thresholds set at 1.782V and 1.818V respectively, offering precise monitoring capabilities with 1% accuracy.

 

This device operates within a wide temperature range of -40°C to 125°C, making it suitable for various environmental conditions. The supply voltage can range from 0.7V to 7V, and it draws a low quiescent current of 0.35 µA. The reset function is active low and adjustable, providing flexibility in system design.

 

Packaged in a 5-VSOF (SOT-665) surface mount package, the BU4318FVE-TR is supplied on tape and reel. Its simple reset/power-on reset type makes it a reliable component for ensuring stable system operation by detecting voltage fluctuations.

BU4318FVE-TR Quick Information

Product Type: Supervisory Circuit
Series: BU42(43)xxFVE
Canonical Name: ROHM Semiconductor BU4318FVE-TR Supervisory Circuit
Subcategory: PMIC - Power Management ICs

BU4318FVE-TR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BU4318FVE-TR Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

BU4318FVE-TR Features

  • Monitors single voltage channel.
  • Precise 1.8V threshold voltage.
  • Wide -40°C to 125°C operating range.
  • Low 0.35 µA quiescent current.
  • Surface mount 5-VSOF package.

BU4318FVE-TR Applications

  • Ensures stable system power.
  • Detects voltage fluctuations.
  • Used in power-sensitive designs.
  • Suitable for harsh environments.

BU4318FVE-TR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage of the BU4318FVE-TR?

The nominal operating voltage is 1.8 V.

What is the operating temperature range of the BU4318FVE-TR?

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

What package options are available for the BU4318FVE-TR?

The BU4318FVE-TR is available in VSOF-5 and SOT-665 packages.

What is the quiescent current of the BU4318FVE-TR?

The typical quiescent current is 0.35 µA.

What is the output type of the BU4318FVE-TR?

The output type is push-pull, totem pole with active-low reset.

What is the accuracy of the BU4318FVE-TR voltage monitoring?

The accuracy is 1%.

What is the supply voltage range for the BU4318FVE-TR?

The supply voltage range is 0.7 V to 7 V.

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