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1.2 A High PSRR low dropout linear voltage regulator
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.
LDL1117S33R by STMicroelectronics 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.
Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
14AC6965
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Newark | Ldo, Fixed, 3.3V, 1.2A, Sot-223-3, Output Type:Fixed, Input Voltage Min:2.5V, Input Voltage Max:18V, No. Of Outputs:1Outputs, Output Voltage Min:-, Output Voltage Max:-, Polarity:Positive Output, Ic Mounting:Surface Mount Rohs Compliant: Yes |Stmicroelectronics LDL1117S33R RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 0 Container: Cut Tape | 207252 |
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$0.1190 | Buy Now |
DISTI #
LDL1117S33R
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Avnet Americas | LDO Voltage Regulator, Fixed, 2.5 V to 18 V, Single Output, 350 mV Drop, 3.3 V, 1.2 A, 3 Pins, SOT-223 - Tape and Reel (Alt: LDL1117S33R) RoHS: Not Compliant Min Qty: 7500 Package Multiple: 2500 Lead time: 14 Weeks, 0 Days Container: Reel | 0 |
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$0.0834 / $0.0873 | Buy Now |
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STMicroelectronics | 1.2 A High PSRR low dropout linear voltage regulator COO: Italy RoHS: Compliant Min Qty: 1 | 928474 |
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$0.3700 / $0.7300 | Buy Now |
DISTI #
LDL1117S33R
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TME | IC: voltage regulator, LDO,linear,fixed, 3.3V, 1.2A, SOT223, SMD Min Qty: 1 | 17943 |
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$0.1680 / $0.6010 | Buy Now |
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Ameya Holding Limited | LDL1117 Series 1.2 A 3.3 V High PSRR LDO Linear Voltage Regulator-SOT-223 | 906 |
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RFQ | |
DISTI #
LDL1117S33R
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Avnet Silica | LDO Voltage Regulator Fixed 25 V to 18 V Single Output 350 mV Drop 33 V 12 A 3 Pins SOT223 (Alt: LDL1117S33R) RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 15 Weeks, 0 Days | Silica - 60000 |
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Buy Now | |
DISTI #
LDL1117S33R
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EBV Elektronik | LDO Voltage Regulator Fixed 25 V to 18 V Single Output 350 mV Drop 33 V 12 A 3 Pins SOT223 (Alt: LDL1117S33R) RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 15 Weeks, 0 Days | EBV - 0 |
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Buy Now | |
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LCSC | 1.2A Fixed 3.3V Positive 18V SOT-223-4 Voltage Regulators - Linear Low Drop Out (LDO) Regulators ROHS | 2810 |
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$0.0787 / $0.1438 | Buy Now |
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MacroQuest Electronics | STOCK | 20000 |
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$0.4300 | Buy Now |
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Vyrian | Regulators | 148504 |
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RFQ |
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LDL1117S33R
STMicroelectronics
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Datasheet
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LDL1117S33R
STMicroelectronics
1.2 A High PSRR low dropout linear voltage regulator
|
Rohs Code | Yes | |
Part Life Cycle Code | Active | |
Ihs Manufacturer | STMICROELECTRONICS | |
Reach Compliance Code | compliant | |
Factory Lead Time | 14 Weeks | |
Samacsys Manufacturer | STMicroelectronics | |
Dropout Voltage1-Max | 0.6 V | |
Input Voltage-Max | 18 V | |
Input Voltage-Min | 4.3 V | |
JESD-30 Code | R-PDSO-G4 | |
JESD-609 Code | e4 | |
Length | 6.5 mm | |
Moisture Sensitivity Level | 1 | |
Number of Functions | 1 | |
Number of Terminals | 4 | |
Operating Temperature TJ-Max | 125 °C | |
Operating Temperature TJ-Min | -40 °C | |
Output Current1-Max | 1.2 A | |
Output Voltage1-Max | 3.399 V | |
Output Voltage1-Min | 3.201 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 | TR | |
Peak Reflow Temperature (Cel) | 260 | |
Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | |
Seated Height-Max | 1.9 mm | |
Surface Mount | YES | |
Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | |
Terminal Form | GULL WING | |
Terminal Pitch | 2.3 mm | |
Terminal Position | DUAL | |
Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED | |
Voltage Tolerance-Max | 3% | |
Width | 3.5 mm |
The maximum input voltage is 15V, but it's recommended to keep it below 12V for optimal performance and to prevent overheating.
To ensure stability, a minimum output capacitance of 10uF is recommended, and the ESR (Equivalent Series Resistance) should be between 0.3 ohms and 10 ohms.
The dropout voltage is typically around 1.5V, which means the input voltage should be at least 1.5V higher than the output voltage for proper regulation.
The LDL1117S33R is rated for operation up to 125°C, but the junction temperature should be kept below 150°C to ensure reliability and prevent thermal shutdown.
Power dissipation 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.