Part Details for LT1121IST-3.3#PBF by Analog Devices Inc
Results Overview of LT1121IST-3.3#PBF by Analog Devices Inc
- Distributor Offerings: (10 listings)
- Number of FFF Equivalents: (2 replacements)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (10 options)
- CAD Models: (Request Part)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
LT1121IST-3.3#PBF Information
LT1121IST-3.3#PBF by Analog Devices Inc 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-3.3#PBF
| Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
51AK7820
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Newark | Ldo, Fixed, 3.3V, 0.15A, Sot-223-3, Output Type:Fixed, Input Voltage Min:4.17V, Input Voltage Max:30V, No. Of Outputs:-, Output Voltage - Nom:3.3V, Output Voltage Min:-, Output Voltage Max:-, Polarity:-, Max Output Current:150Ma Rohs Compliant: Yes |Analog Devices LT1121IST-3.3#PBF RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Bulk | 201 |
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$3.9000 / $8.8800 | Buy Now |
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DISTI #
LT1121IST-3.3#PBF-ND
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DigiKey | IC REG LIN 3.3V 150MA SOT-223-3 Min Qty: 1 Lead time: 10 Weeks Container: Tube |
6962 In Stock |
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$3.9000 / $8.8800 | Buy Now |
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DISTI #
584-LT1121IST-3.3PBF
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Mouser Electronics | LDO Voltage Regulators uP L Drop Regs w/ SD RoHS: Compliant | 397 |
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$3.9000 / $8.8800 | Buy Now |
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DISTI #
V36:1790_06414366
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Arrow Electronics | LDO Regulator Pos 3.3V 0.15A 4-Pin(3+Tab) SOT-223 Tube COO: Malaysia RoHS: Exempt Min Qty: 156 Package Multiple: 78 Lead time: 10 Weeks Date Code: 2438 | Americas - 234 |
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$3.8530 / $3.8910 | Buy Now |
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Analog Devices Inc | uP L Drop Regs w/ SD Package Multiple: 78 | 3499 |
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$3.1200 / $8.8800 | Buy Now |
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DISTI #
V36:1790_06414366
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Arrow Electronics | LDO Regulator Pos 3.3V 0.15A 4-Pin(3+Tab) SOT-223 Tube COO: Malaysia RoHS: Exempt Min Qty: 156 Package Multiple: 78 Lead time: 10 Weeks Date Code: 2438 | Americas - 234 |
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$3.8530 / $3.8910 | Buy Now |
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DISTI #
V36:1790_06414366
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Arrow Electronics | LDO Regulator Pos 3.3V 0.15A 4-Pin(3+Tab) SOT-223 Tube COO: Malaysia RoHS: Exempt Min Qty: 156 Package Multiple: 78 Lead time: 10 Weeks Date Code: 2438 | Americas - 234 |
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$3.8530 / $3.8910 | Buy Now |
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DISTI #
LT1121IST-3.3PB
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Richardson RFPD | VOLTAGE REGULATOR RoHS: Compliant Min Qty: 156 | 0 |
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$4.0300 / $4.4200 | Buy Now |
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Chip Stock | LDORegulatorPos3.3V0.15AAutomotive4-Pin(3+Tab)SOT-223 | 3166 |
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RFQ | |
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Dynamic Solutions GmbH | OEM and CM Only | 3000 |
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RFQ |
US Tariff Estimator: LT1121IST-3.3#PBF by Analog Devices Inc
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
Part Details for LT1121IST-3.3#PBF
LT1121IST-3.3#PBF Part Data Attributes
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LT1121IST-3.3#PBF
Analog Devices Inc
Buy Now
Datasheet
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Compare Parts:
LT1121IST-3.3#PBF
Analog Devices Inc
Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, BIPolar, PDSO4
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| Pbfree Code | No | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Package Description | Sot-323 | |
| Pin Count | 3 | |
| Manufacturer Package Code | 05-08-1630 | |
| 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 | 4.3 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 | 3.4 V | |
| Output Voltage1-Min | 3.2 V | |
| Output Voltage1-Nom | 3.3 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 |
Alternate Parts for LT1121IST-3.3#PBF
This table gives cross-reference parts and alternative options found for LT1121IST-3.3#PBF. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of LT1121IST-3.3#PBF, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| LT1121CST-3.3#PBF | Analog Devices Inc | $3.7120 | Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, BIPolar, PDSO4 | LT1121IST-3.3#PBF vs LT1121CST-3.3#PBF |
| LT1121CST-3.3#TR | Analog Devices Inc | Check for Price | Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, BIPolar, PDSO4 | LT1121IST-3.3#PBF vs LT1121CST-3.3#TR |
LT1121IST-3.3#PBF Frequently Asked Questions (FAQ)
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The maximum input voltage that can be applied to the LT1121IST-3.3#PBF is 15V, but it's recommended to operate within the specified input voltage range of 3.3V ±10% for optimal performance.
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To ensure the stability of the output voltage, it's essential to follow the recommended PCB layout guidelines, use a suitable output capacitor (e.g., 10uF ceramic), and maintain a minimum load current of 1mA.
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The typical dropout voltage of the LT1121IST-3.3#PBF is around 1.5V, which means the input voltage should be at least 1.5V higher than the output voltage for proper regulation.
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The LT1121IST-3.3#PBF is rated for operation up to 125°C, but the junction temperature should be kept below 150°C to ensure reliability. It's essential to consider the thermal design and heat dissipation in high-temperature applications.
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The power dissipation of the LT1121IST-3.3#PBF can be calculated using the formula: Pd = (Vin - Vout) x Iout, where Vin is the input voltage, Vout is the output voltage, and Iout is the output current.