SiC45x Family microBUCK® Regulators
Vishay’s regulators feature PMBus 1.3 compliance for power system telemetry, simplifying the design of POL converters
Vishay's SiC45x family of microBUCK synchronous buck regulators includes 15 A, 25 A, and 40 A devices with input voltages from 4.5 V to 20 V and PMBus 1.3 compliance for power system telemetry. The devices co-package high-performance n-channel trench MOSFETs with a PWM controller in a compact, thermally enhanced 5 mm by 7 mm PowerPAK® MLP34-57 package. The regulators offer low operating current in idle mode, enabling peak efficiency of up to 98% and reducing power losses. Intended to simplify the design of high-performance point-of-load (POL) converters, the integrated devices require minimal external components for configuration and loop compensation. SiC45x family regulators are internally compensated over the entire VIN and VOUT range of operation. Highly configurable, these devices combine their wide input voltage range with an adjustable output voltage from 0.3 V to 12 V. All SiC45x family devices share the same footprint to provide designers with a scalable solution, offering cost and performance optimization while accelerating design time.
- Input voltages: 4.5 V to 20 V
- Adjustable output voltage: down to 0.3 V
- Peak efficiency: up to 98%
- Low operating current in idle mode
- Internally compensated over the entire VIN and VOUT range of operation
- PMBus 1.3 compliance for power system telemetry
- Programmable switching frequencies from 300 kHz to 1.5 MHz
- Three operating modes: forced continuous conduction, power save, or ultrasonic
- Overvoltage and undervoltage protection (OVP/UVP)
- Overcurrent protection (OCP) in pulse by pulse mode
- Differential output remote sensing
- Overtemperature protection (OTP) with hysteresis
- Output currents up to 40 A in a thermally enhanced 5 mm by 7 mm PowerPAK MLP34-57 package
- POL converters
- Cloud computing
- Enterprise servers
- Industrial computers
- Networking systems
- Telecom systems
- Storage systems
SiC45x Family microBUCK® Regulators
| Image | Manufacturer Part Number | Description | Frequency - Switching | Supplier Device Package | Available Quantity | Price | View Details | ||
|---|---|---|---|---|---|---|---|---|---|
![]() | ![]() | SIC450ED-T1-GE3 | IC REG BCK ADJ POWERPAK MLP34-57 | 300kHz ~ 1.5MHz | PowerPAK® MLP34-57 | 6556 - Immediate | $5.61 | View Details | |
![]() | ![]() | SIC451ED-T1-GE3 | IC REG BCK ADJ POWERPAK MLP34-57 | 300kHz ~ 1.5MHz | PowerPAK® MLP34-57 | 3910 - Immediate | $4.33 | View Details | |
![]() | ![]() | SIC453ED-T1-GE3 | IC REG BCK ADJ POWERPAK MLP34-57 | 300kHz ~ 1.5MHz | PowerPAK® MLP34-57 | 4865 - Immediate | $4.12 | View Details |




