The L4978D is a step-down switching regulator capable of delivering up to 2A with an adjustable output voltage ranging from 3.3V to 50V. It operates within a wide input voltage range of 8V to 55V and features a maximum switching frequency of 300KHz. The device incorporates several protective features including pulse-by-pulse current limiting, hiccup mode for short circuit protection, thermal shutdown, and a soft-start function. It is available in a SO16W package suitable for surface mount assembly. The L4978D is designed for applications requiring efficient voltage regulation with low power dissipation and high reliability.
Manufacturer: STMicroelectronics
Win Source Part Number: 088844-L4978D
Packaging: Reel - TR
Mounting: SMD (SMT)
Output Type: Adjustable
Topology: Buck
Frequency - Switching: 100kHz to 300kHz
Number of Outputs: 1
Synchronous Rectifier: No
Output Current: 2A
Categories: Integrated Circuits
Status: Active
Temperature Range - Operating: -40°C to 150°C (TJ)
Case / Package: 16-SO
Purpose: Step-Down
Maximum Input Voltage: 55V
Nominal Output Voltage (Min/Fixed): 3.3V
Maximum Output Voltage: 50V
Minimum Input Voltage: 8V
Is this a common-used part?: Yes
Popularity: High
Fake Threat In the Open Market: 51 pct.
Supply and Demand Status: Balance
IC REG BUCK ADJUSTABLE 2A 16SOIC
STMicroelectronics L4978D Buck Converter
STMicroelectronics L4978D Buck Converter
STMicroelectronics L4978D Buck Converter
"Buck Switching Regulator IC Positive Adjustable 3.3V 1 Output 2A 16-SOIC (0.295"", 7.50mm Width)"
IC REG BUCK ADJUSTABLE 2A 16SOIC
Buck Switching Regulator IC Positive Adjustable 3.3V 1 Output 2A 16-SOIC (0.295", 7.50mm Width)
Switching Voltage Regulators 3.3 to 50V Step-Down
IC REG BUCK ADJUSTABLE 2A 16SOIC
| Win Source Electronics | ODG (Origin Data Global) | RS Components, Ltd. | RS Components, Ltd. | DigiKey | Lingto Electronic Limited | Quarktwin Technology Ltd. | VAST STOCK CO., LIMITED | Shenzhen Shengyu Electronics Technology Limited | |
|---|---|---|---|---|---|---|---|---|---|
| Product Category | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators |
| Product Number | 088844-L4978D | L4978D | 6868237 | 6868237P | 497-5794-5-ND | L4978D | L4978D | L4978D | L4978D |
| Product Name | PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - L4978D | Voltage Regulators - DC DC Switching Regulators | Switching Regulators | Switching Regulators | Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators | Voltage Regulators - DC DC Switching Regulators | Switching Voltage Regulators | Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators |
| Configuration / Function | Buck | Buck | Buck; Boost | Buck | |||||
| Output Voltage Type | Adjustable / Variable; Adjustable | Adjustable / Variable | Adjustable / Variable | Adjustable / Variable | Adjustable / Variable | Adjustable / Variable; Adjustable | |||
| Package Type | Other; 16-SO | SOIC; Other; 16-SOIC (0.295", 7.50mm Width) | SOIC; Other; Soic w | SOIC; Other; "16-SOIC (0.295"", 7.50mm Width)" | SOIC; Other; 16-SOIC (0.295\", 7.50mm Width) | SOIC | |||
| Life Cycle Stage | Maturity; Active | Active | Active | ||||||
| Special Features | Multiple Outputs; Synchronous Rectification |
