REG103UA-3.3 The Texas Instruments REG103UA-3.3 is a 500mA, low-dropout linear voltage regulator with a fixed 3.3V output. It operates from a 2.7V to 15V input and is available in an 8-SOIC package.
Mfr Part #:

REG103UA-3.3

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments REG103UA-3.3 is a 500mA, low-dropout linear voltage regulator with a fixed 3.3V output. It operates from a 2.7V to 15V input and is available in an 8-SOIC package.
✓ Total Stock: 45,375 pcs
$ Price Range: $3.94

REG103UA-3.3 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
45,200 pcs
45200 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
175 pcs
175 pcs On Request 1 On Request On Request N/A On Request On Request

REG103UA-3.3 Specifications Quick View

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

REG103UA-3.3 Description

Short technical summary and product information.

The Texas Instruments REG103UA-3.3 is a versatile low-dropout (LDO) linear voltage regulator designed for various power management applications. It provides a stable 3.3V output voltage with a maximum output current of 500mA, drawing from an input voltage range of 2.7V to 15V.

 

Key electrical characteristics include a low quiescent current of 1mA typical at full load and a typical dropout voltage of 115mV at 500mA. The regulator features an enable pin for power control and a power good output indicator. It also offers protection against over current and over temperature conditions.

 

Designed for ease of use, the REG103UA-3.3 does not require an external output capacitor for stability, simplifying circuit design. Its noise performance is rated at 33µVrms with a PSRR of 20dB at 100 KHz. The accuracy is within ±2% maximum.

 

This component is housed in a compact 8-SOIC surface-mount package, making it suitable for space-constrained applications. The operating temperature range is -40°C to 85°C, ensuring reliable performance in various environmental conditions. Applications include portable communication devices, battery-powered equipment, and personal digital assistants.

REG103UA-3.3 Quick Information

Product Type: Low-Dropout Voltage Regulator
Canonical Name: Texas Instruments REG103UA-3.3 Low-Dropout Voltage Regulator
Subcategory: LDO Regulator

REG103UA-3.3 Compliance

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

REG103UA-3.3 Estimated Pricing

Qty Low High
1+ $3.94 $3.94

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

REG103UA-3.3 Features

  • 500mA output current capability.
  • Fixed 3.3V output voltage.
  • Low quiescent current for efficiency.
  • Enable and power good features included.
  • 8-SOIC surface-mount package.

REG103UA-3.3 Applications

  • Ideal for portable electronics.
  • Suitable for battery-powered devices.
  • Used in communication equipment.
  • Applicable for personal digital assistants.

REG103UA-3.3 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the fixed output voltage of the REG103UA-3.3?

The REG103UA-3.3 provides a fixed output voltage of 3.3V.

What is the maximum output current for the REG103UA-3.3?

The maximum output current for the REG103UA-3.3 is 0.5 A.

What is the input voltage range for the REG103UA-3.3?

The input voltage range for the REG103UA-3.3 is from 2.7 V (minimum) to 15 V (maximum).

What is the typical dropout voltage of the REG103UA-3.3?

The typical dropout voltage for the REG103UA-3.3 is 115 mV.

What is the operating temperature range of the REG103UA-3.3?

The operating temperature range for the REG103UA-3.3 is -40°C to 85°C.

What package type does the REG103UA-3.3 come in?

The REG103UA-3.3 comes in an 8-SOIC package.

What protection features does the REG103UA-3.3 include?

The REG103UA-3.3 includes Over Current and Over Temperature protection features.

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