Modern electronics require multi-rail power trees with high efficiency, fast transient response, and minimal EMI across input ranges from battery voltage to mains-derived rails. Restar Electronics supports power design engineers with 500,000+ in-stock SKUs, 24-hour RFQ response, BOM matching, quality inspection, and global shipping for PMIC, converter, and charging applications.
Comprehensive Power Component Portfolio
Buck, boost, and buck-boost converters, LDO regulators, battery chargers, and power path managers form the backbone of every electronic product power architecture. Restar stocks PMICs, controllers, MOSFETs, inductors, and capacitors from leading manufacturers with engineer-led BOM optimization.
High-current applications in servers, EV chargers, and industrial drives push thermal limits requiring low-Rds(on) MOSFETs, low-DCR inductors, and polymer capacitors with documented ripple current ratings. Our FAE team assists with power stage calculations support, inductor-capacitor pairing, and alternate sourcing for allocation-constrained power ICs.
- DC-DC ICs, LDOs, chargers, inductors, and bulk capacitors in stock
- 24-hour RFQ with BOM matching for power board assemblies
- FAE support for inductor selection, thermal design, and IC alternates
- Global shipping for prototype and high-volume power module builds
Key Challenges
Efficiency & Thermal Management
High-current converters must minimize switching losses and hotspot formation while fitting into constrained PCB areas without excessive heat sinking.
EMI & Conducted Emissions
Switching regulators generate conducted and radiated EMI requiring careful input filtering, layout support passives, and shielding components.
Multi-Rail Sequencing & Power Path
Complex SoCs and FPGAs demand precise power-up sequencing, OR-ing between battery and adapter, and load switch control.
Application Scenarios
DC-DC Conversion & POL Regulation
Point-of-load buck converters deliver 0.6V–5V rails from 5V/12V/48V inputs with tight regulation for processors, FPGAs, and memory. Restar supplies synchronous buck controllers, power MOSFETs, inductors, and output capacitors.
- Synchronous buck controller and converter ICs
- Shielded and semi-shielded power inductors
- Low-ESR polymer and MLCC output capacitors
Battery Charging & Management
Linear and switching chargers for Li-ion, LiFePO4, and NiMH cells integrate charge profiling, thermal regulation, and safety timers in compact packages. We provide charger ICs, battery FETs, and NTC support passives.
- Switching and linear battery charger ICs
- Battery protection MOSFETs and controllers
- Current sense resistors for charging telemetry
Power Path & Hot-Swap Management
Systems with battery backup, redundant power feeds, or hot-pluggable modules require ideal diode controllers, load switches, and eFuse protection. Restar delivers power path ICs, load switches, and input TVS protection.
- Ideal diode and OR-ing controller ICs
- High-side and low-side load switches
- eFuse and hot-swap controller ICs
Key Components
DC-DC Converter & Controller ICs
Buck, boost, and buck-boost power stages
In Stock / RFQ
LDO Linear Regulators
Low-noise analog and post-regulation rails
In Stock / RFQ
Battery Charger ICs
Li-ion, LiFePO4, and multi-cell charging
In Stock / RFQ
Power Inductors (Shielded / Semi-Shielded)
Buck converter energy storage and filtering
In Stock / RFQ
Bulk & Polymer Capacitors
Input/output filtering and hold-up energy
In Stock / RFQ
Power MOSFETs & Load Switches
Synchronous rectification and power gating
In Stock / RFQ
Our Capabilities
Power BOM Optimization
Inductor-capacitor pairing recommendations and efficiency-optimized component selection for each rail.
Thermal & Ripple Current Analysis Support
FAE guidance on inductor DCR, capacitor ripple ratings, and MOSFET Rds(on) for thermal headroom.
PMIC Cross-Reference & Alternates
Qualified alternates for allocation-constrained DC-DC and charger ICs with pin-compatibility review.
Prototype to Volume Power Supply
Cut-tape IC samples to full reel inductor and capacitor quantities from one source.
Engagement Process
Define Power Architecture
Share input voltage, output rails, current ratings, and BOM.
Power Stage Review
Restar engineers validate IC, inductor, and capacitor selections.
Quote & Sample Ship
Receive 24-hour pricing and approve power board prototype builds.
Volume Fulfillment
Global delivery with lot traceability for power module production.