LM109H
Standard Regulator Pos 5.05V 1A 3-Pin TO-39 Bulk
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Part Number : LM109H
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Package/Case : TO-3
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Brands : TI
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Components Categories : Voltage Regulators - Linear
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Datesheet : LM109H DataSheet (PDF)
Overview of LM109H
The LM109 series are complete 5V regulators fabricated on a single silicon chip. They are designed for local regulation on digital logic cards, eliminating the distribution problems association with single-point regulation. The devices are available in two standard transistor packages. In the solid-kovar TO-5 header, it can deliver output currents in excess of 200 mA, if adequate heat sinking is provided. With the TO-3 power package, the available output current is greater than 1A.
The regulators are essentially blowout proof. Current limiting is included to limit the peak output current to a safe value. In addition, thermal shutdown is provided to keep the IC from overheating. If internal dissipation becomes too great, the regulator will shut down to prevent excessive heating.
Considerable effort was expended to make these devices easy to use and to minimize the number of external components. It is not necessary to bypass the output, although this does improve transient response somewhat. Input bypassing is needed, however, if the regulator is located very far from the filter capacitor of the power supply. Stability is also achieved by methods that provide very good rejection of load or line transients as are usually seen with TTL logic.
Although designed primarily as a fixed-voltage regulator, the output of the LM109 series can be set to voltages above 5V, as shown. It is also possible to use the circuits as the control element in precision regulators, taking advantage of the good current-handling capability and the thermal overload protection.
Key Features
- Specified to be compatible, worst case, with TTL and DTL
- Output current in excess of 1A
- Internal thermal overload protection
- No external components required
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Source Content uid | LM109H | Pbfree Code | Yes |
Rohs Code | Yes | Part Life Cycle Code | Active |
Ihs Manufacturer | TEXAS INSTRUMENTS INC | Part Package Code | TO-39 |
Package Description | TO-39, CAN3/4,.2 | Pin Count | 3 |
Reach Compliance Code | compliant | ECCN Code | EAR99 |
HTS Code | 8542.39.00.01 | Samacsys Manufacturer | Texas Instruments |
Adjustability | FIXED | Dropout Voltage1-Nom | 3 V |
Input Voltage Absolute-Max | 35 V | Input Voltage-Max | 35 V |
Input Voltage-Min | 7.1 V | JESD-30 Code | O-MBCY-W3 |
JESD-609 Code | e4 | Length | 8.255 mm |
Line Regulation-Max | 0.05% | Load Regulation-Max | 0.05% |
Moisture Sensitivity Level | 1 | Number of Functions | 1 |
Number of Outputs | 1 | Number of Terminals | 3 |
Operating Temperature TJ-Max | 150 °C | Operating Temperature TJ-Min | -55 °C |
Operating Temperature-Max | 150 °C | Operating Temperature-Min | -55 °C |
Output Current1-Max | 1 A | Output Voltage1-Max | 5 V |
Output Voltage1-Min | 5 V | Output Voltage1-Nom | 5 V |
Package Body Material | METAL | Package Code | TO-39 |
Package Equivalence Code | CAN3/4,.2 | Package Shape | ROUND |
Package Style | CYLINDRICAL | Qualification Status | Not Qualified |
Regulator Type | FIXED POSITIVE SINGLE OUTPUT STANDARD REGULATOR | Surface Mount | NO |
Technology | BIPOLAR | Terminal Finish | GOLD |
Terminal Form | WIRE | Terminal Pitch | 4.699 mm |
Terminal Position | BOTTOM | Voltage Tolerance-Max | 8% |
Width | 8.255 mm |
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