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ST L4973V3.3
Buck Switching Regulator IC Positive Adjustable (Fixed) 0.5V (3.3V) 1 Output 3.5A 18-DIP (0.300", 7.62mm)
Marcas: STMicroelectronics, Inc
Parte do fabricante #: L4973V3.3
Ficha de dados: L4973V3.3 Datasheet (PDF)
Pacote/Caso: PDIP-18
Status RoHS:
Condição de estoque: 2454 peças, novo original
Tipo de Produto: CIs de gerenciamento de energia
Warranty: 1 Year Ovaga Warranty - Find Out More
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1
*Todos os preços estão em USD
| Quantidade | Preço unitário | Preço Externo |
|---|---|---|
| 1 | $7,672 | $7,672 |
| 10 | $6,737 | $67,370 |
| 40 | $6,167 | $246,680 |
| 100 | $5,689 | $568,900 |
In Stock:2454 PCS
L4973V3.3 Descrição geral
The L4973 is a step down monolithic power switching regulator delivering 3.5A at fixed voltages of 3.3V or 5.1V and using a simple external divider output adjustable voltage up to 50V. Realized in BCD mixed technology, the device uses an internal power D-MOS transistor (with a typical RDS(on)of 0.15Ω) to obtain very high efficiency and very fast switching times. Switching frequency up to 300KHz are achievable (the maximum power dissipation of the packages must be observed).A wide input voltage range between 8V to 55V and output voltages regulated from 3.3V to 40V cover the majority of the today applications. Features of this new generation of DC-DC converter includes pulse by pulse current limit, hiccup mode for output short circuit protection, voltage feed forward regulation, soft start, input/output synchronization, protection against feedback loop disconnection, inhibit for zero current consumption and thermal shutdown. Packages available are in plastic dual in line, DIP- 18 (12+3+3) for standard assembly, and SO20 (12+4+4) for SMD assembly.
Características
- Inhibit for zero current consumption (100mA at VCC= 24V)
- Input/output synchronization function
- Thermal shutdown
- Protection against feedback disconnection
- Soft start function
- Output over voltage protection
- Internal current limiting (pulse by pulse and HICCUP mode)
- Zero load current operation (min 1mA)
- Up to 3.5A step down converter
- 3.3V 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 55V
- Voltage feed forward
- Precise 5.1V (1.5%) reference voltage externally available
- Frequency adjustable up to 300kHz
Especificações
| Parâmetro | Valor | Parâmetro | Valor |
|---|---|---|---|
| Manufacturer: | STMicroelectronics | Product Category: | Switching Voltage Regulators |
| RoHS: | Y | Mounting Style: | Through Hole |
| Package / Case: | PDIP-18 | Output Voltage: | 3.36 V |
| Output Current: | 3.5 A | Number of Outputs: | 1 Output |
| Input Voltage MAX: | 55 V | Topology: | Buck |
| Input Voltage MIN: | 8 V | Switching Frequency: | 100 kHz |
| Series: | L4973 | Packaging: | Tube |
| Input Voltage: | 8 V to 55 V | Type: | Step-Down |
| Brand: | STMicroelectronics | Product Type: | Switching Voltage Regulators |
| Factory Pack Quantity: | 1000 | Subcategory: | PMIC - Power Management ICs |
| Supply Voltage - Min: | 8 V | Unit Weight: | 0.044801 oz |
| Tags | L4973V3, L4973V, L4973, L497, L49 | feature-type | Step Down |
| feature-maximum-power-dissipation-mw | feature-packaging | Tube | |
| feature-rad-hard | feature-pin-count | 18 | |
| feature-supplier-package | PDIP | feature-standard-package-name1 | DIP |
| 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 |
| feature-svhc-exceeds-threshold | Yes |
Envio
| Tipo de envio | Taxa de envio | Tempo de espera | |
|---|---|---|---|
 |
DHL | $20.00-$40.00 (0.50 KG) | 2-5 dias |
 |
FedEx | $20.00-$40.00 (0.50 KG) | 2-5 dias |
 |
UPS | $20.00-$40.00 (0.50 KG) | 2-5 dias |
 |
TNT | $20.00-$40.00 (0.50 KG) | 2-5 dias |
 |
EMS | $20.00-$40.00 (0.50 KG) | 2-5 dias |
 |
CORREIO AÉREO REGISTADO | $20.00-$40.00 (0.50 KG) | 2-5 dias |
Tempo de processamento: A taxa de envio depende de diferentes zonas e países.
Pagamento
| Termos de pagamento | Taxa de mão | |
|---|---|---|
 |
Transferência bancária | cobrar taxa bancária de US$ 30,00. |
 |
PayPal | cobrar taxa de serviço de 4,0%. |
 |
Cartão de crédito | cobrar taxa de serviço de 3,5%. |
 |
Western Union | charge US.00 banking fee. |
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Grama de dinheiro | cobrar taxa bancária de US$ 0,00. |
Garantias
1.Os componentes eletrônicos que você compra incluem garantia de 365 dias, garantimos a qualidade do produto.
2. se alguns dos itens que você recebeu não forem de qualidade perfeita, providenciaremos seu reembolso ou substituição com responsabilidade. Mas os itens devem permanecer em sua condição original.
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Todos os produtos serão embalados em saco antiestático. Envio com proteção antiestática ESD.
Fora da etiqueta da embalagem ESD serão utilizadas as informações da nossa empresa: Número da peça, marca e quantidade.
Iremos inspecionar todas as mercadorias antes do envio, garantir que todos os produtos estejam em boas condições e garantir que as peças sejam novas folhas de dados originais.
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Part points
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The L4973V3.3 chip is a voltage regulator designed for use in various electronic devices. It can handle an input voltage range of 8V to 50V and provides a stable output voltage of 3.3V. The chip has a maximum output current of 3A and includes protection features like thermal shutdown and current limiting. It is commonly used in power supplies and battery charging circuits.
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Equivalent
There are no direct equivalent products to the L4973V3.3 chip. However, substitute options with similar functionality include the LM2575T-3.3, TPS5430DDA, and NCP1605B chips. These alternatives offer voltage regulation and current control capabilities suitable for various applications. -
Features
The L4973V3.3 is a linear voltage regulator IC. Its features include a voltage input range from 4.35V to 60V, a fixed output voltage of 3.3V, an output current capability of 5A, thermal shutdown protection, and overcurrent protection. -
Pinout
The L4973V3.3 is a 3.3V voltage regulator integrated circuit with a TO-220 package. It has 5 pins: input voltage (VIN), output voltage (VOUT), ground (GND), error amplifier input (FB), and error amplifier output (COMP). It is commonly used for regulating DC voltage in various electronic devices. -
Manufacturer
The manufacturer of the L4973V3.3 is STMicroelectronics. It is a multinational semiconductor and electronics company that designs, develops, and manufactures a wide range of products, including microcontrollers, sensors, power management devices, and more. STMicroelectronics serves various industries, including automotive, industrial, consumer electronics, and communications. -
Application Field
The L4973V3.3 is a voltage regulator designed for use in a wide range of applications, including industrial power supplies, high-efficiency DC-DC converters, home audio and video equipment, and automotive electronics. -
Package
The L4973V3.3 chip is housed in a TO-220 package, which has a through-hole form. The package measures approximately 10.3 mm x 15.7 mm.
Ficha de dados PDF
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