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REG103UA-5 The Texas Instruments REG103UA-5 is a 500mA, 15V low-dropout linear voltage regulator. It offers low noise and fast transient response, suitable for various power management applications.
Mfr Part #:

REG103UA-5

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments REG103UA-5 is a 500mA, 15V low-dropout linear voltage regulator. It offers low noise and fast transient response, suitable for various power management applications.
✓ Total Stock: 2,342 pcs
$ Price Range: $3.94

REG103UA-5 Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
2,150 pcs
On Request
2150 pcs On Request 1 On Request On Request 24+ On Request On Request
Husky International Electronic ✓
Non-Authorised Inventory information
183 pcs
On Request
183 pcs On Request 1 On Request On Request N/A On Request On Request
Bristol Electronics ✓
Non-Authorised Inventory information
9 pcs
On Request
9 pcs On Request 1 On Request On Request On Request 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-5 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Control Features
Current
Lead Spacing
Lead Style
Mounting Type
Number of Regulators
Operating Temperature
Output Configuration
Output Current
Output Type
PSRR
Protection Features
Supplier Device Package
Voltage
Voltage Dropout (Max)
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REG103UA-5 Description

Short technical summary and product information.

The Texas Instruments REG103UA-5 is a linear, low-dropout (LDO) voltage regulator designed for efficient power management. It provides a stable 5V output with a maximum output current of 500mA and an input voltage capability of up to 15V.

 

Key electrical characteristics include a low dropout voltage of 115mV typical at 500mA, and a PSRR of 65dB at 120Hz, indicating good noise rejection. The device operates with a quiescent current of 0.5µA when not enabled and 1mA at 500mA output, contributing to high efficiency. Protection features such as over current and over temperature are integrated for reliability.

 

Packaged in an 8-SOIC surface-mount package, the REG103UA-5 is suitable for space-constrained designs. Its operating temperature range is -40°C to 85°C, making it versatile for various environmental conditions. The regulator also features an enable control pin and an output voltage error indicator.

 

Applications for the REG103UA-5 include portable communication devices, battery-powered equipment, personal digital assistants, modems, bar-code scanners, and backup power supplies where low noise and stable voltage regulation are critical.

REG103UA-5 Quick Information

Product Type: Linear Voltage Regulator
Series: REG103
Canonical Name: REG103UA-5 Low-Dropout Voltage Regulator
Subcategory: Low-Dropout (LDO) Regulators

REG103UA-5 Compliance

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

REG103UA-5 Estimated Pricing

Qty Low High
1+ $3.94 $3.94

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

REG103UA-5 Features

  • Provides a stable 5V output voltage.
  • Supports up to 500mA output current.
  • Features ultra-low dropout voltage.
  • Operates from -40°C to 85°C.
  • Available in an 8-SOIC package.

REG103UA-5 Applications

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

REG103UA-5 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the output voltage of the REG103UA-5?

5V fixed output.

What is the package type of the REG103UA-5?

8-SOIC surface mount package.

What is the operating temperature range?

-40°C to 85°C.

What is the maximum output current?

500mA.

What is the dropout voltage?

115mV typical at 500mA output.

What protection features does it have?

Over current and over temperature protection.

Does it have an enable pin?

Yes, it has an enable control feature.

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