2.5A SWITCHING REGULATOR, 1800kHz SWITCHING FREQ-MAX, DSO6, 3 X 3 MM, LEAD FREE, DFN-6 Product overview: ST1S03APUR from STMicroelectronics is a Voltage Regulator IC for stable power rails, DC-DC conversion, battery-powered electronics, automotive modules, and embedded power management. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include 2.5A, 1800kHz, DFN. Search-friendly keywords include voltage regulator, LDO, buck converter, boost converter, power rail, 2.5A, 1800kHz, DFN, Voltage Regulator IC, DC Switching Voltage Regulators. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 739-ST1S03APUR can be used for catalog matching and distributor lookup.
Manufacturer: STMicroelectronics
Win Source Part Number: 804492-ST1S03APUR
Packaging: Reel
Mounting Style: SMD
Current - Output: 1.5A
Output Type: Adjustable
Function: Step-Down
Topology: Buck
Frequency - Switching: 1.5MHz
Number of Outputs: 1
Part Status: Obsolete (End Of Life)
Output Configuration: Positive
Voltage - Input (Min): 3V
Voltage - Output (Min/Fixed): 0.8V
Synchronous Rectifier: No
Supplier Device Package: 6-DFN (3x3)
Temperature Range - Operating: 0°C ~ 125°C
Maximum Input Voltage: 5.5V
Maximum Output Voltage: 4.79V
Manufacturer Package: 6-VDFN Exposed Pad
Popularity: Medium
Fake Threat In the Open Market: 44 pct.
Supply and Demand Status: Balance
Manufacturer Pack Quantity: 3,000
MSL Level: 1 (Unlimited)
Part Number Series: ST1S03
Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 1.5A 6-VDFN Exposed Pad
Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 1.5A 6-VDFN Exposed Pad
IC REG BUCK ADJUSTABLE 1.5A 6DFN
IC REG BUCK ADJ 1.5A DFN6D
IC REG BUCK ADJ 1.5A 6DFN
| ERSAELECTRONICS PTE. LTD. | Win Source Electronics | DigiKey | Quarktwin Technology Ltd. | Lingto Electronic Limited | Utmel Electronic 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 Voltage Regulators | IC Switching Voltage Regulators |
| Product Number | 739-ST1S03APUR | 804492-ST1S03APUR | 497-6902-2-ND | ST1S03APUR | ST1S03APUR | 761-ST1S03APUR | ST1S03APUR |
| Product Name | 2.5A 1800kHz DFN Voltage Regulator IC | PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - ST1S03APUR | Voltage Regulators - DC DC Switching Regulators | Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators | IC REG BUCK ADJ 1.5A DFN6D | Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators |
| Package Type | Other; DFN | Other; 6-VDFN Exposed Pad | Other; 6-VDFN Exposed Pad | Other; 6-VDFN Exposed Pad | Other; 6-VDFN Exposed Pad | ||
| Output Voltage | 7 volts | 4.79 volts | 0.8000 to 4.79 volts | 0.8000 to 4.79 volts | 7 volts | 0.8000 volts | |
| IOUT | 1.5 amps | 1.5 amps | 1.5 amps | 1.5 amps | 1.5 amps | 1.5 amps | |
| VIN | 5.5 volts | 5.5 volts | 3 to 5.5 volts | 3 to 5.5 volts | |||
| Operating Temperature | 0 C (32 F) | 0 to 125 C (32 to 257 F) | 0 to 125 C (32 to 257 F) | 0 to 125 C (32 to 257 F) | 0 to 125 C (32 to 257 F) | 0 to 125 C (32 to 257 F) |
