The MIC2171BU is a 100 kHz DC-DC switching regulator designed for various applications, including voltage step-up, step-down, inverting, and Cuk configurations. It features an internal power switch rated at 2.5A and 65V, with an input voltage range of 3V to 40V. The device operates with a low quiescent current of 7 mA, making it suitable for battery-operated devices. It is available in a 5-pin TO-220 or TO-263 package, supporting ambient temperatures from -40¬8C to +85¬8C. The MIC2171BU includes cycle-by-cycle current limiting and is compatible with multiple switching topologies, which can simplify design requirements. Applications include laptop and handheld devices, as well as off-line converters up to 50W.
Manufacturer: Microchip Technology
Win Source Part Number: 140494-MIC2171BU
Packaging: Tube/Rail
Mounting: SMD (SMT)
Output Type: Adjustable
Topology: Buck, Boost, Cuk, Flyback, Forward Converter
Frequency - Switching: 100kHz
Number of Outputs: 1
Synchronous Rectifier: No
Output Current: 2.5A (Switch)
Categories: Integrated Circuits
Status: Obsolete(EOL)
Temperature Range - Operating: -40°C to 85°C (TA)
Case / Package: TO-263-5
Purpose: Step-Up, Step-Down, Step-Up/Step-Down
Maximum Input Voltage: 40V
Maximum Output Voltage: 65V (Switch)
Minimum Input Voltage: 3V
Alternative Parts (Cross-Reference): MIC2171WU; MIC2171BU; MIC2171BU TR; MIC2171BT;
Popularity: Medium
Fake Threat In the Open Market: 58 pct.
Supply and Demand Status: Balance
IC REG MULTI CONFG ADJ TO263-5
IC REG MULT CONFG ADJ 2.5A TO263 Product overview: MIC2171BU from Microchip Technology 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. Search-friendly keywords include voltage regulator, LDO, buck converter, boost converter, power rail, 2.5A, 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-MIC2171BU can be used for catalog matching and distributor lookup.
Buck, Boost, Cuk, Flyback, Forward Converter Switching Regulator IC Positive or Negative, Isolation Capable Adjustable 1 Output 2.5A (Switch) TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
Buck, Boost, Cuk, Flyback, Forward Converter Switching Regulator IC Positive or Negative, Isolation Capable Adjustable 1 Output 2.5A (Switch) TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
Buck, Boost, Cuk, Flyback, Forward Converter Switching Regulator IC Positive or Negative, Isolation Capable Adjustable 1 Output 2.5A (Switch) TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
2.5 A SWITCHING REGULATOR
IC REG MULTI CONFG ADJ TO263-5
| Win Source Electronics | ODG (Origin Data Global) | ERSAELECTRONICS PTE. LTD. | DigiKey | Quarktwin Technology Ltd. | Shenzhen Shengyu Electronics Technology Limited | Lingto Electronic 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 |
| Product Number | 140494-MIC2171BU | MIC2171BU | 739-MIC2171BU | MIC2171BU-ND | MIC2171BU | MIC2171BU | MIC2171BU |
| Product Name | PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - MIC2171BU | Voltage Regulators - DC DC Switching Regulators | 2.5A Voltage Regulator IC | Voltage Regulators - DC DC Switching Regulators | Voltage Regulators - DC DC Switching Regulators | Integrated Circuits (ICs) - PMIC - Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators |
| Configuration / Function | Buck, Boost, Cuk, Flyback, Forward Converter | Buck; Boost | Buck; Boost | ||||
| Output Voltage Type | Adjustable / Variable; Adjustable | Adjustable / Variable | Adjustable / Variable | Adjustable / Variable | Adjustable / Variable; Adjustable | ||
| Package Type | TO-263; Other; TO-263-5 | TO-263; Other; TO-263-6, D²Pak (5 Leads + Tab), TO-263BA | Other; Tube | TO-263; Other; TO-263-6, D2PAK (5 Leads + Tab), TO-263BA | TO-263; Other; TO-263-6, D²Pak (5 Leads + Tab), TO-263BA | TO-263 | |
| Life Cycle Stage | PhaseOut; Obsolete(EOL) | Removed; Obsolete | Removed | ||||
| Special Features | Multiple Outputs; Synchronous Rectification |
