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ADI LT1121IST-5#PBF
Linear Voltage Regulator IC Positive Fixed 1 Output 150mA SOT-223-3
Brands: Analog Devices, Inc
Mfr.Part #: LT1121IST-5#PBF
Datasheet: LT1121IST-5#PBF Datasheet (PDF)
Package/Case: SOT-22
Product Type: Power Management ICs
LT1121IST-5#PBF General Description
The LT1121/LT1121-3.3/LT1121-5 are micropower low dropout regulators with shutdown. These devices are capable of supplying 150mA of output current with a dropout voltage of 0.4V. Designed for use in battery-powered systems, the low quiescent current, 30µA operating and 16µA in shutdown, makes them an ideal choice. The quiescent current is well-controlled; it does not rise in dropout as it does with many other low dropout PNP regulators.
Features
- 0.4V Dropout Voltage
- 150mA Output Current
- 30µA Quiescent Current
- No Protection Diodes Needed
- Adjustable Output from 3.75V to 30V
- 3.3V and 5V Fixed Output Voltages
- Controlled Quiescent Current in Dropout
- Shutdown
- 16µA Quiescent Current in Shutdown
- Stable with 0.33µF Output Capacitor
- Reverse Battery Protection
- No Reverse Current with Input Low
- Thermal Limiting
- Available in the 8-Lead SO, 8-Lead PDIP, 3-Lead SOT-23 and 3-Lead TO-92 Packages
Application
- Low Current Regulator
- Regulator for Battery-Powered Systems
- Post Regulator for Switching Supplies
Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| feature-type | LDO | feature-number-of-outputs | 1 |
| feature-polarity | Positive | feature-accuracy- | |
| feature-process-technology | feature-output-type | Fixed | |
| feature-output-voltage-v | 5 | feature-maximum-output-current-a | 0.15 |
| feature-minimum-input-voltage-v | 4.17 | feature-maximum-input-voltage-v | 36 |
| feature-maximum-dropout-voltage-current-v | 0.16@1mA|0.35@50mA|0.45@100mA|0.55@150mA | feature-line-regulation | 10mV |
| feature-load-regulation | -35mV | feature-maximum-power-dissipation-mw | |
| feature-packaging | Tube | feature-rad-hard | |
| feature-pin-count | 4 | feature-supplier-package | SOT-223 |
| feature-standard-package-name1 | SOT | feature-cecc-qualified | No |
| feature-esd-protection | feature-escc-qualified | ||
| feature-military | No | feature-aec-qualified | No |
| feature-aec-qualified-number | feature-auto-motive | No | |
| feature-p-pap | No | feature-eccn-code | EAR99 |
| feature-svhc | Yes |
Shipping
| Shipping Type | Ship Fee | Lead Time | |
|---|---|---|---|
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DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
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Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
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UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
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EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time：Shipping fee depend on different zone and country.
Payment
| Terms of payment | Hand Fee | |
|---|---|---|
 |
Wire Transfer | charge US$30.00 banking fee. |
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Paypal | charge 4.0% service fee. |
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Credit Card | charge 3.5% service fee. |
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Western Union | charge US.00 banking fee. |
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Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
Packing
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Step1 :Product
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Step2 :Vacuum packaging
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Step3 :Anti-static bag
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Step4 :Individual packaging
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Step5 :Packaging boxes
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Step6 :bar-code shipping tag
All the products will packing in anti-staticbag. Ship with ESD antistatic protection.
Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
Part points
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The LT1121IST-5#PBF chip is a low dropout regulator (LDO) integrated circuit. It is designed to regulate and stabilize voltages in electronic circuits, allowing for consistent power supply despite varying input voltages. This chip operates at a dropout voltage as low as 300mV and provides a fixed output voltage of 5V. It is typically used in applications where a stable voltage source is required, such as in battery-operated devices or portable electronics.
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Equivalent
Some equivalent products of the LT1121IST-5#PBF chip include Texas Instruments' LM2937-5.0 and Microchip's MCP1700T-5002E/TT. These are low dropout voltage regulators with similar features and specifications. -
Features
The LT1121IST-5#PBF is a low-dropout linear regulator with a 5V output voltage. Its features include a dropout voltage of 0.4V, low quiescent current of 85μA, low output noise, and a wide input voltage range of 2.5V to 20V. It also provides short-circuit protection, thermal shutdown, and is available in a small SOT-223 package. -
Pinout
The LT1121IST-5#PBF is a low dropout positive voltage regulator. It has a 3-pin TO-263 package and the pin count is 3. Pin 1 is the input, Pin 2 is the ground, and Pin 3 is the output. -
Manufacturer
The manufacturer of the LT1121IST-5#PBF is Linear Technology Corporation. It is a semiconductor company that develops and manufactures a wide range of integrated circuits, including power management, data conversion, signal conditioning, and communications interface products. -
Application Field
The LT1121IST-5#PBF is a linear regulator IC that is commonly used in applications requiring a stable and low dropout voltage. It can be used in various electronic devices such as smartphones, tablets, portable audio devices, and other battery-powered applications to provide a regulated voltage supply. -
Package
The LT1121IST-5#PBF chip is available in a surface mount package type called SOT-223. It has 3 pins and is offered in a form factor of a single IC chip.
Datasheet PDF
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Recommend
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Analog Devices, Inc
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Not the most reliable components, but good enough for basic projects.