Part Details for LT1121IST-5#PBF by Linear Technology
Results Overview of LT1121IST-5#PBF by Linear Technology
- Distributor Offerings: (3 listings)
- Number of FFF Equivalents: (0 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (0 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
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LT1121IST-5#PBF Information
LT1121IST-5#PBF by Linear Technology is a Linear Regulator IC.
Linear Regulator ICs are under the broader part category of Power Circuits.
A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.
Price & Stock for LT1121IST-5#PBF
| Part # | Distributor | Description | Stock | Price | Buy | |
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Bristol Electronics | 15 |
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RFQ | ||
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Vyrian | Regulators | 787 |
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RFQ | |
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Win Source Electronics | IC REG LDO 5V 0.15A SOT223 | 2810 |
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$4.7965 / $7.1946 | Buy Now |
Part Details for LT1121IST-5#PBF
LT1121IST-5#PBF CAD Models
LT1121IST-5#PBF Part Data Attributes
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LT1121IST-5#PBF
Linear Technology
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Datasheet
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LT1121IST-5#PBF
Linear Technology
LT1121 - Micropower Low Dropout Regulators with Shutdown; Package: SOT; Pins: 3; Temperature Range: -40°C to 85°C
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| Rohs Code | Yes | |
| Part Life Cycle Code | Transferred | |
| Ihs Manufacturer | LINEAR TECHNOLOGY CORP | |
| Part Package Code | SOT | |
| Package Description | SOT-323 | |
| Pin Count | 3 | |
| Manufacturer Package Code | ST | |
| Reach Compliance Code | not_compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| Adjustability | FIXED | |
| Dropout Voltage1-Max | 0.7 V | |
| Dropout Voltage1-Nom | 0.42 V | |
| Input Voltage Absolute-Max | 30 V | |
| Input Voltage-Max | 20 V | |
| Input Voltage-Min | 6 V | |
| JESD-30 Code | R-PDSO-G4 | |
| JESD-609 Code | e3 | |
| Length | 6.505 mm | |
| Line Regulation-Max | 0.01% | |
| Load Regulation-Max | 0.04% | |
| Moisture Sensitivity Level | 1 | |
| Number of Functions | 1 | |
| Number of Outputs | 1 | |
| Number of Terminals | 4 | |
| Operating Temperature TJ-Max | 125 °C | |
| Operating Temperature TJ-Min | -40 °C | |
| Output Current1-Max | 0.15 A | |
| Output Voltage1-Max | 5.15 V | |
| Output Voltage1-Min | 4.85 V | |
| Output Voltage1-Nom | 5 V | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | SOP | |
| Package Equivalence Code | SOT-223 | |
| Package Shape | RECTANGULAR | |
| Package Style | SMALL OUTLINE | |
| Packing Method | TUBE | |
| Peak Reflow Temperature (Cel) | 260 | |
| Qualification Status | Not Qualified | |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | |
| Seated Height-Max | 1.8 mm | |
| Surface Mount | YES | |
| Technology | BIPOLAR | |
| Terminal Finish | Matte Tin (Sn) | |
| Terminal Form | GULL WING | |
| Terminal Pitch | 2.3 mm | |
| Terminal Position | DUAL | |
| Time@Peak Reflow Temperature-Max (s) | 30 | |
| Voltage Tolerance-Max | 3% | |
| Width | 3.505 mm |
LT1121IST-5#PBF Frequently Asked Questions (FAQ)
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The maximum input voltage that can be applied to the LT1121IST-5#PBF is 15V, but it's recommended to operate within the specified input voltage range of 4.5V to 12V for optimal performance.
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To ensure stability, follow the recommended layout guidelines, use a minimum output capacitance of 10uF, and ensure the input and output capacitors are placed close to the device. Additionally, use a low-ESR output capacitor and avoid using ceramic capacitors with high ESL.
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The maximum output current that the LT1121IST-5#PBF can deliver is 1A, but it's recommended to operate within the specified output current range of 0.1A to 0.5A for optimal performance and to prevent overheating.
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To reduce noise and ripple, use a low-noise input voltage source, add a 10uF or larger input capacitor, and use a low-ESR output capacitor. Additionally, consider adding a noise-reducing capacitor (e.g., 10nF) between the output and ground.
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The thermal shutdown temperature of the LT1121IST-5#PBF is typically around 150°C, but it can vary depending on the specific device and operating conditions. It's essential to ensure proper thermal management and heat sinking to prevent overheating.