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LM109H The Texas Instruments LM109H is a fixed 5.05V linear voltage regulator designed for local regulation on digital logic cards. It features internal thermal overload protection and current limiting.
Mfr Part #:

LM109H

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments LM109H is a fixed 5.05V linear voltage regulator designed for local regulation on digital logic cards. It features internal thermal overload protection and current limiting.
✓ Total Stock: 24 pcs
$ Price Range: $12.65

LM109H Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Hybrid Electronics ✓
Non-Authorised Inventory information
15 pcs
On Request
15 pcs On Request 1 On Request On Request On Request On Request On Request
Speed Components Ltd ✓
Non-Authorised Inventory information
8 pcs
On Request
8 pcs On Request 1 On Request On Request 9224 On Request On Request
Partservice ✓
Non-Authorised Inventory information
1 pcs
On Request
1 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.

LM109H Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Accuracy
Current
Mounting Type
Noise
Number of Regulators
Operating Temperature
Output Configuration
Output Type
PSRR
Protection Features
Quiescent Current
Supplier Device Package
Supplier Package
Thermal Resistance
Voltage
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LM109H Description

Short technical summary and product information.

The Texas Instruments LM109H is a complete 5V regulator fabricated on a single silicon chip, designed for local regulation on digital logic cards. This device is suitable for applications requiring a stable 5.05V output with a maximum current of 200mA.

 

Key electrical specifications include an input voltage range from 7.1V to 35V, a typical dropout voltage of 3000mV, and a quiescent current of 5.2mA. It offers a Power Supply Rejection Ratio (PSRR) of 64dB at 100 KHz and output noise of 40 µVrms. The regulator has an accuracy of 4% and includes over-current and over-temperature protection features.

 

The LM109H is housed in a TO-39-3 Metal Can package (TO-205AD) and is designed for through-hole mounting. It operates across an extended temperature range of -55°C to 150°C, making it suitable for demanding environments.

 

This series of regulators is designed to be easy to use, minimizing the need for external components. Its internal thermal overload protection ensures the IC shuts down to prevent overheating if internal dissipation becomes too great.

LM109H Quick Information

Product Type: Linear Regulator
Canonical Name: LM109H 5V 200mA Linear Regulator
Subcategory: LDO Regulators

LM109H Compliance

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

LM109H Estimated Pricing

Qty Low High
1+ $12.65 $12.65

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

LM109H Features

  • Fixed 5.05V output voltage.
  • 200mA maximum output current.
  • Wide -55°C to 150°C operating temperature.
  • Internal thermal overload protection.
  • TO-39 package for through-hole mounting.

LM109H Applications

  • Local regulation on digital logic cards.
  • Power supply for sensitive electronic circuits.
  • Applications requiring stable 5V power.
  • Use in extended temperature environments.

LM109H FAQs

7 frequently asked questions generated from this part’s specifications.
What is the output voltage of the LM109H?

The nominal output voltage is 5.05V, with a minimum of 5V and maximum of 5V.

What is the maximum output current of the LM109H?

The maximum output current is 200mA for the TO-39 package.

What is the input voltage range?

The input voltage range is from 7.1V minimum to 35V maximum.

What is the operating temperature range?

The operating temperature range is -55°C to 150°C.

What protection features does the LM109H include?

It includes over-current and over-temperature protection.

What package is the LM109H available in?

It is available in a TO-205AD, TO-39-3 Metal Can through-hole package.

What is the typical dropout voltage?

The typical dropout voltage is 3000mV (3V).

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