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REG103UA-2.5 The Texas Instruments REG103UA-2.5 is a 500mA low-noise, low-dropout linear voltage regulator with a fixed 2.5V output. It offers high accuracy and fast transient response.
Mfr Part #:

REG103UA-2.5

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments REG103UA-2.5 is a 500mA low-noise, low-dropout linear voltage regulator with a fixed 2.5V output. It offers high accuracy and fast transient response.
✓ Total Stock: 13,053 pcs
$ Price Range: $0.28

REG103UA-2.5 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
12,914 pcs
On Request
12914 pcs On Request 1 On Request On Request On Request On Request On Request
Husky International Electronic ✓
Non-Authorised Inventory information
139 pcs
On Request
139 pcs On Request 1 On Request On Request N/A On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

REG103UA-2.5 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Control Features
Current
Mounting Type
Number of Regulators
Operating Temperature
Output Configuration
Output Current
Output Type
PSRR
Protection Features
Supplier Device Package
Supplier Package
Voltage
Voltage Dropout (Max)
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REG103UA-2.5 Description

Short technical summary and product information.

The Texas Instruments REG103UA-2.5 is a 500mA low-noise, low-dropout linear voltage regulator designed for battery-powered applications. It features a new DMOS topology that provides ultra-low dropout voltage and does not require an output capacitor for stability. This regulator offers a fixed 2.5V output with a high accuracy of ±2% maximum.

 

Key electrical characteristics include a typical dropout voltage of 115mV at 500mA and 3.3V output, and very low output noise of 33µVrms. The quiescent current is typically 1mA at full load and drops to 0.5µA when disabled, contributing to high efficiency. Protection features include foldback current limit and thermal protection.

 

The REG103UA-2.5 is available in a small surface-mount 8-SOIC package, making it suitable for space-constrained designs. Its operating temperature range is -40°C to 85°C. Applications include portable communication devices, battery-powered equipment, and personal digital assistants.

REG103UA-2.5 Quick Information

Product Type: Linear Voltage Regulator
Canonical Name: Texas Instruments REG103UA-2.5 Linear Voltage Regulator
Subcategory: Low-Dropout (LDO) Regulators

REG103UA-2.5 Compliance

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

REG103UA-2.5 Estimated Pricing

Qty Low High
1+ $0.28 $0.28

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

REG103UA-2.5 Features

  • Ultra low dropout voltage.
  • Output capacitor not required for stability.
  • Very low output noise.
  • High output voltage accuracy.
  • Foldback current limit and thermal protection.

REG103UA-2.5 Applications

  • Ideal for portable communication devices.
  • Suitable for battery-powered equipment.
  • Used in personal digital assistants.
  • Applicable for bar-code scanners.
  • Designed for backup power supplies.

REG103UA-2.5 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the output voltage of the REG103UA-2.5?

The fixed output voltage is 2.5V.

What is the dropout voltage of the REG103UA-2.5?

The typical dropout voltage is 115mV at 500mA load, with a maximum of 0.28V.

What is the maximum output current?

The maximum output current is 500mA.

What is the operating temperature range?

The operating temperature range is -40°C to 85°C.

What package is the REG103UA-2.5 available in?

The device is available in an 8-SOIC surface-mount package.

What is the quiescent current?

The quiescent current is 0.5µA when disabled and 1mA at 500mA output.

Does the REG103UA-2.5 have over-current protection?

Yes, it includes over-current and over-temperature protection.

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