Power Supply Pins: Current_Capacity 50mA to 500mA

Component Specifications

Definition

Power supply pins are dedicated terminals on clock buffer and driver integrated circuits designed to receive external power input. These pins distribute electrical energy throughout the device to power internal circuitry including amplification stages, output drivers, and control logic. They maintain voltage stability critical for generating precise clock signals with minimal jitter and phase noise.

Working Principle

Power supply pins function as entry points for electrical energy into the integrated circuit. They connect to external voltage regulators or power sources, then distribute power through internal traces to various circuit blocks. Decoupling capacitors placed near these pins filter noise and stabilize voltage, while internal power distribution networks ensure consistent voltage levels across the chip despite varying current demands from different circuit sections.

Materials

Copper alloy (typically C194 or C7025) with nickel/gold plating (ENIG or ENEPIG), leadframe material: Alloy 42 or copper alloy, molding compound: epoxy resin with silica filler, wire bonding: gold or copper wire.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Pin Count	1 to 4 pins
Pin Spacing	0.5mm to 1.27mm pitch
Voltage Rating	1.8V, 2.5V, 3.3V, 5V
Current Capacity	50mA to 500mA
Contact Resistance	< 20mΩ
Insulation Resistance	> 10^9Ω
Operating Temperature	-40°C to +125°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

IEC 60747, JEDEC JESD22, IPC-A-610

Parent Products

This component is used in the following industrial products

Clock Buffer/Driver

An electronic component that amplifies and distributes clock signals within a system.

View Product Details

Buffer Amplifier

An electronic circuit component that isolates the input from the output while providing impedance matching and signal integrity in analog systems.

View Product Details

Engineering Analysis

Risks & Mitigation

Overvoltage damage
Electrostatic discharge (ESD)
Poor solder joints
Power supply noise coupling
Thermal stress fractures

FMEA Triads

Trigger: Poor PCB layout with inadequate decoupling
Failure: Power supply noise induces clock jitter
Mitigation: Place decoupling capacitors within 2mm of power pins, use multiple capacitor values, implement proper power plane design

Trigger: Excessive current draw due to short circuit
Failure: Pin overheating and connection failure
Mitigation: Implement current limiting in power supply, use thermal relief pads in PCB design, select pins with adequate current rating

Trigger: Mechanical stress during assembly
Failure: Pin cracking or detachment from package
Mitigation: Follow recommended reflow profiles, implement strain relief in cable connections, use appropriate socket types

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±5% voltage tolerance, ±10% current rating tolerance, positional accuracy within ±0.1mm

Test Method

Continuity testing, insulation resistance testing (500VDC), current carrying capacity test, thermal cycling (-40°C to +125°C, 1000 cycles), solderability testing per J-STD-002

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Power Supply Pins

Manufacturer profiles associated with Power Supply Pins.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

Why do clock buffers need dedicated power supply pins?

Clock buffers require dedicated power pins to isolate noisy digital power from sensitive analog circuitry, ensuring clean clock signals with minimal jitter and phase noise that could affect system timing.

What happens if power supply pins receive incorrect voltage?

Incorrect voltage can cause improper biasing of internal transistors, leading to signal distortion, increased jitter, reduced output swing, or permanent damage to the device through overvoltage or latch-up conditions.

How many power supply pins do typical clock buffers have?

Most clock buffers have 2-4 power pins: separate pins for core voltage (VDD) and output driver voltage (VDDQ), plus ground pins. Advanced devices may have additional pins for analog and digital power isolation.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Power Supply Pins