ST L4973D3.3
Buck Switching Regulator IC Positive Adjustable (Fixed) 0.5V (3.3V) 1 Output 3.5A 20-SOIC (0.295", 7.50mm Width)
Brands: STMicroelectronics, Inc
Mfr.Part #: L4973D3.3
Datasheet: L4973D3.3 Datasheet (PDF)
Package/Case: SOP-20
RoHS Status:
Stock Condition: 2803 pcs, New Original
Product Type: Power Management ICs
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*All prices are in USD
Qty | Unit Price | Ext Price |
---|---|---|
1 | $5.739 | $5.739 |
10 | $5.097 | $50.970 |
30 | $4.506 | $135.180 |
100 | $4.178 | $417.800 |
In Stock:2803 PCS
L4973D3.3 General Description
Inhibit for zero current consumption (100mA at VCC= 24V)Input/output synchronization functionThermal shutdownProtection against feedback disconnectionSoft start functionOutput over voltage protectionInternal current limiting (pulse by pulse and HICCUP mode)Zero load current operation (min 1mA)Up to 3.5A step down converter3.3V and 5.1V (±1%) fixed output, and adjustable outputs from:0.5V to 50V (3.3 type)5.1V to 50V (5.1 type)Operating input voltage from 8V to 55VVoltage feed forwardPrecise 5.1V (1.5%) reference voltage externally availableFrequency adjustable up to 300kHz
Specifications
Parameter | Value | Parameter | Value |
---|---|---|---|
Manufacturer | STMicroelectronics | Product Category | PMIC - Voltage Regulators - DC DC Switching Regulators |
Series | L4973 | Type | Step-Down |
Packaging | Tube Alternate Packaging | Unit-Weight | 0.009408 oz |
Mounting-Style | SMD/SMT | Operating-Temperature-Range | - 40 C to + 150 C |
Package-Case | SO-20 | Operating-Temperature | -40°C ~ 150°C (TJ) |
Mounting-Type | Surface Mount | Output-Type | Adjustable (Fixed) |
Function | Step-Down | Supplier-Device-Package | 20-SO |
Number-of-Outputs | 1 | Topology | Buck |
Frequency-Switching | 100kHz ~ 300kHz | Current-Output | 3.5A |
Output-Configuration | Positive | Voltage-Output-Min-Fixed | 0.5V (3.3V) |
Voltage-Output-Max | 50V | Synchronous-Rectifier | No |
Voltage-Input-Min | 8V | Voltage-Input-Max | 55V |
Shutdown | Shutdown | Maximum-Operating-Temperature | + 150 C |
Minimum-Operating-Temperature | - 40 C | Output-Voltage | 50 V |
Operating-Supply-Current | 16 mA | Input-Voltage | 8 V to 55 V |
Input-Voltage-MAX | 55 V | Output-Current | 3.5 A |
Switching-Frequency | 300 kHz | Input-Voltage-MIN | 8 V |
Supply-Voltage-Min | 8 V | Tags | L4973D3.3, L4973D3, L4973D, L4973, L497, L49 |
feature-type | Step Down | feature-maximum-power-dissipation-mw | |
feature-packaging | Tube | feature-rad-hard | |
feature-pin-count | 20 | feature-supplier-package | SO |
feature-standard-package-name1 | SO | 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 | No |
Shipping
Shipping Type | Ship Fee | Lead Time | |
---|---|---|---|
DHL | $20.00-$40.00 (0.50 KG) | 2-5 days | |
Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days | |
UPS | $20.00-$40.00 (0.50 KG) | 2-5 days | |
TNT | $20.00-$40.00 (0.50 KG) | 2-5 days | |
EMS | $20.00-$40.00 (0.50 KG) | 2-5 days | |
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. | |
Paypal | charge 4.0% service fee. | |
Credit Card | charge 3.5% service fee. | |
Western Union | charge US.00 banking fee. | |
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 L4973D3.3 chip is a voltage regulator IC that provides a fixed 3.3V output voltage. It is specifically designed for high-current applications, capable of delivering up to 3A of output current. It features an adjustable current limit, thermal shutdown, and soft-start function. The L4973D3.3 chip is commonly used in various electronic devices, such as power supplies and industrial applications.
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Features
L4973D3.3 is a voltage regulator with an output voltage of 3.3V. Its features include a wide input voltage range (up to 55V), high efficiency, short-circuit protection, thermal shutdown, adjustable output voltage, and high output current capability (up to 3A). -
Pinout
The L4973D3.3 is a voltage regulator with a pin count of 7. Its functions include regulating the output voltage to 3.3V, providing protection features such as overcurrent and thermal shutdown, and enabling efficient power management in various applications. -
Manufacturer
The L4973D3.3 is manufactured by STMicroelectronics, a multinational semiconductor company. STMicroelectronics is known for producing a wide range of electronic components and solutions, including microcontrollers, power management systems, sensors, and more. -
Application Field
The L4973D3.3 is a voltage regulator IC, specifically designed for applications requiring a fixed voltage of 3.3V. It is commonly used in power supply circuits, battery chargers, and industrial automation systems where a stable voltage output is crucial. -
Package
The L4973D3.3 chip is offered in a TO-220 package type. It comes in a through-hole form and has a standard size for the TO-220 package design.
Datasheet PDF
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