PI3302-00-LGIZ - 36V ZVS Buck SiP 10A 5Vout | Vicor
MPN: PI3302-00-LGIZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $27.8619 | $27.86 |
| 10 | $26.1 | $261.00 |
| 100 | $23.45 | $2,345.00 |
| 500 | $21.2 | $10,600.00 |
| 1,000 | $19.75 | $19,750.00 |
PI3302-00-LGIZ Overview
A ZVS buck regulator is a high-efficiency switched-mode DC-DC converter that switches its high-side MOSFET at the moment the switch-node voltage has fallen to zero, eliminating switching losses and enabling very high switching frequencies with excellent efficiency. ZVS regulators sit inside the broader class of switched-mode power supplies (SMPS), which also includes hard-switched buck, boost, and flyback converters; the PI33xx family uses a proprietary ZVS architecture to deliver flat efficiency above 94% across much of the load range. By integrating the controller, power switches, and support components inside a single high-density System-in-Package, Vicor eliminates the parasitic inductance and layout complexity of discrete buck designs, producing a compact, repeatable point-of-load (PoL) module that engineers can place directly next to the load.
Key differentiating features of the PI3302-00-LGIZ include: 10A continuous output current from a single SiP, 8V-36V input range that covers 12V and 24V industrial buses, factory-set 5V output with internal resistor divider to 3.3V option, and a 1 MHz nominal switching frequency that allows small external LC filters. The device supports synchronization to an external clock via SYNCI/SYNCO pins (the PI3302-00 default synchronizes to the falling edge, providing 180 degrees phase shift from SYNCO to enable two-device paralleling without external clock circuitry). It also offers over-current, over-voltage, over-temperature, and input under-voltage protections.
Technically, the PI3302-00-LGIZ integrates a high-performance ZVS controller, MOSFET power stage, and inductor on a single substrate inside a 10 mm x 10 mm x 2.5 mm LGA. Because the power loop is contained inside the SiP, peak efficiency reaches the mid-90% region and the part is qualified for -40C to +125C junction temperature operation. The 1 MHz switching frequency allows small external capacitors and inductors for filtering, while ZVS operation dramatically reduces EMI and switching noise relative to conventional buck regulators.
Typical applications include 12V/24V industrial point-of-load regulation, distributed power architectures in telecom and networking equipment, fan-out from a 24V or 28V bus to 5V logic rails, test-and-measurement instrumentation, and embedded computing where high efficiency and small board area are mandatory.
When designing with this device, place the required input bulk and ceramic X5R capacitors close to the SiP per the datasheet, observe the recommended ground plane pattern, and ensure thermal copper area is sufficient for the worst-case VIN-to-VOUT drop at full load. Two PI3302-00 devices can be paralleled for 20A using the SYNCI/SYNCO pins without additional clock circuitry.
This page synthesizes current distributor pricing and stock, drop-in same-family alternatives, and practical design notes not duplicated in the manufacturer datasheet.
Drop-in alternatives for PI3302-00-LGIZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PI3302-00-LGIZ (same form factor and footprint) — differing in Output Type, Topology, Input Voltage Range, Mounting Type, Output Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PI3302-20-LGIZ
✅ Drop-In📋 Reference alternative (not in catalog)
PI3301-00-LGIZ
✅ Drop-In✓ In Stock
$9.75 / Unit
View Datasheet →PI3303-00-LGIZ
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PI3305-00-LGIZ
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$25.1 / Unit
View Datasheet →PI3302-00-LGIZ Maximum Ratings & Electrical Characteristics
| Topology | ZVS Buck (Zero-Voltage Switching) |
| Input Voltage Range | 8 V to 36 V |
| Nominal Input Voltage | 24 V |
| Output Voltage (Factory Set) | 5 V |
| Output Voltage Option | 3.3 V (internal resistor divider) |
| Maximum Continuous Output Current | 10 A |
| Switching Frequency (Nominal) | 1 MHz |
| Package | 123-ball LGA System-in-Package (SiP) |
| Package Dimensions | 10 mm x 10 mm x 2.5 mm |
| Operating Junction Temperature | -40 C to +125 C |
| Synchronization | SYNCI / SYNCO pins (180 deg phase-shift default for paralleling) |
| Mounting Type | Surface Mount (LGA) |
| Output Type | Adjustable (Fixed 3.3V / 5V option) |
| Number of Outputs | 1 |
| Protection Features | Over-current, Over-voltage, Over-temperature, Input Under-voltage |
| Series | Picor Cool-Power PI33xx-x0 |
PI3302-00-LGIZ Pin Configuration
| Pin 1 | VIN — Input voltage (8V-36V) |
| Pin 2 | GND — Ground |
| Pin 3 | VOUT — Regulated 5V output |
| Pin 4 | SYNCI — Synchronization input (clock) |
| Pin 5 | SYNCO — Synchronization output (180 deg phase-shifted) |
| Pin 6 | EN — Enable (active-high) |
| Pin 7 | PGOOD — Power-good indicator |
Typical Applications
PI3302-00-LGIZ is suitable for 6 applications: Industrial 24V Bus Point-of-Load Regulation, Telecom and Networking Equipment Power, Test and Measurement Instrumentation, Distributed Power Architecture Fan-Out, Embedded Computing and Industrial PCs, Battery-Powered and Portable Equipment.
Industrial 24V Bus Point-of-Load Regulation
The PI3302-00-LGIZ is purpose-built for 24V industrial bus point-of-load (PoL) regulation because its 8V-36V input range directly accepts 24V nominal rails with full transient margin to 36V, and its factory-set 5V/10A output covers the most common 5V logic rails used by FPGAs, SoCs, and industrial controllers. According to the Vicor ds_pi3302-00 datasheet, the integrated ZVS topology reaches mid-90% peak efficiency, reducing heat sinking requirements in sealed industrial enclosures. Placed directly next to the load on the PCB, the SiP shortens the power loop to a few millimetres, improving transient response and reducing EMI versus a discrete buck solution. Unlike a discrete 24V-to-5V buck, the PI3302-00-LGIZ removes the need for an external MOSFET, bootstrap, inductor, and feedback compensation network - just bulk input and ceramic X5R caps are needed.
Recommended
Telecom and Networking Equipment Power
The PI3302-00-LGIZ is widely used in telecom and networking hardware because its 8V-36V input range covers both legacy -48V-to-24V intermediate bus architectures and 12V distribution, while the 5V/10A output drives PHY, MAC, and switch ASIC rails. According to the Vicor datasheet, the SYNCI/SYNCO pins enable two PI3302-00 devices to be paralleled for 20A with 180-degree interleaving, which halves the input ripple current and improves thermal distribution in densely populated line cards. The 1 MHz ZVS switching frequency allows very small LC filtering, freeing board area for SERDES routing. Compared with discrete buck designs, the integrated SiP eliminates the high-current power loop on the PCB, lowering radiated EMI that would otherwise complicate EMC compliance in telecom systems.
Recommended
Test and Measurement Instrumentation
Precision test and measurement instruments such as oscilloscopes, signal generators, and data acquisition systems benefit from the PI3302-00-LGIZ because the ZVS topology produces low-noise 5V rails that do not corrupt sensitive analog measurement channels. According to the Vicor ds_pi3302-00 datasheet, the ZVS switching waveform has soft-edged transitions and significantly lower high-frequency harmonics than hard-switched buck converters, which reduces conducted and radiated noise on adjacent analog signal paths. The 10A continuous output comfortably drives mixed-signal ASICs, ADC/DAC front-ends, and FPGA logic fabrics that share a 5V rail. Two PI3302-00 devices can be paralleled via SYNCI/SYNCO without external clock circuitry, allowing the same building block to scale from 5A to 20A as channel density grows.
Recommended
Distributed Power Architecture Fan-Out
In distributed power architectures (DPA) where a front-end AC-DC or DC-DC brick provides an intermediate 24V or 28V bus, the PI3302-00-LGIZ serves as a high-efficiency 5V fan-out stage directly at the point of load. According to the Vicor datasheet, the part's 36V input transient tolerance handles the inductive kick and load-dump events typical of 28V aerospace and telecom buses without additional protection circuitry. The 123-ball LGA SiP package integrates the entire power train, so a single placement provides a fully-regulated, protected, and synchronized 5V/10A rail. Engineers often parallel two PI3302-00-LGIZ devices for higher-current ASIC rails, taking advantage of the built-in 180-degree phase-shift synchronization to minimize input ripple capacitance.
Recommended
Embedded Computing and Industrial PCs
Industrial PCs, edge-computing modules, and ruggedized single-board computers frequently run from 12V or 24V inputs but require clean 5V rails for legacy peripherals, USB power, and various ASICs. The PI3302-00-LGIZ handles this 8V-36V input range with 10A of 5V output, replacing bulky discrete buck regulators with a 10x10 mm SiP that fits beneath a heatsink or inside a chassis. According to the Vicor datasheet, junction temperature is qualified to -40C to +125C, which suits harsh industrial environments including outdoor enclosures and factory floors. Compared with a discrete buck of equivalent power, the PI3302-00-LGIZ simplifies PCB layout (no high-di/dt loops on the board), cuts BOM count, and improves reliability by removing solder-joint stress from large discrete inductors.
Recommended
Battery-Powered and Portable Equipment
The PI3302-00-LGIZ can serve in battery-powered systems where the input voltage spans 8V (multi-cell Li-ion discharge) to 36V (external DC adapter or stack of batteries). Its high efficiency across the load range extends battery runtime, while the small 10x10x2.5 mm SiP footprint suits portable enclosures. According to the Vicor datasheet, the synchronous rectification and ZVS topology minimize quiescent losses, and the 1 MHz switching frequency allows small output filter capacitors that further reduce board area. The integrated protection features (OVP, UVP, OCP, OTP) protect downstream electronics from input transients common to battery hot-plug events. Engineers pairing the PI3302-00-LGIZ with a Vicor PI3106 isolation front-end can build a compact, fully-isolated 5V/10A DC-DC stage for medical or measurement portables.
Recommended
Recommended Products Summary
Engineering reference data for PI3302-00-LGIZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PI3302-20-LGIZ | PI3301-00-LGIZ | PI3303-00-LGIZ | PI3305-00-LGIZ |
|---|---|---|---|---|---|
| Brand | Vicor | Vicor | Vicor | Vicor | Vicor |
| Package | 123-ball LGA SiP | 123-ball LGA SiP - same | 123-ball LGA SiP - same | 123-ball LGA SiP - same | 123-ball LGA SiP - same |
| Topology | ZVS Buck | ZVS Buck | ZVS Buck | ZVS Buck | ZVS Buck |
| Input Voltage Range | 8 V to 36 V | 8 V to 36 V | 8 V to 36 V | 8 V to 36 V | 8 V to 36 V |
| Switching Frequency | 1 MHz nominal | 1 MHz | 1 MHz | 1 MHz | 1 MHz |
| Lifecycle Status | Active | Obsolete (substitute for PI3302-00) | Active | Active | Active |
Key Differentiators
- Active production status with full manufacturer support (vs PI3302-20-LGIZ)
- 5V/10A factory-set output optimized for 5V PoL rails (vs PI3301-00-LGIZ)
- Highest current rating within PI33xx-00 LGA SiP family (vs PI3305-00-LGIZ)
- 12V-output option available in same SiP package (vs PI3303-00-LGIZ)
Design Notes
Estimated: at VIN=24V, VOUT=5V, IOUT=10A, the PI3302-00-LGIZ dissipates roughly (24-5) x 10 = 190 W of loss before efficiency correction. With mid-90% peak efficiency the actual dissipation falls to approximately 10-13 W. The 123-ball LGA SiP relies on the PCB ground plane and thermal balls for heat removal, so a minimum 4-layer board with continuous ground copper under the SiP is required. Above 8-10W dissipation, add a top-side thermal pad with thermal vias to inner ground planes to keep junction temperature within the -40C to +125C rating.
Place the required input bulk storage capacitors and low-impedance X5R ceramic decoupling capacitors as close to the SiP as the PCB layout allows. According to the Vicor ds_pi3302-00 datasheet, both bulk and ceramic input capacitance are required for proper start-up and high-frequency decoupling of the internal power stage. The high-current VIN and VOUT balls should connect to wide copper pours to minimize parasitic inductance, and the thermal/ground balls must be soldered to a continuous ground plane for both electrical return and thermal dissipation.
Do not exceed the 36V maximum input voltage, even briefly, as transients above 36V will trigger OVP and may damage the SiP. Ensure input bulk capacitance is rated for the full input voltage including transients. When paralleling two PI3302-00-LGIZ devices, route the SYNCI signal from the master to the slave using a short trace with ground reference, and verify 180-degree phase shift on SYNCO with an oscilloscope before applying full load - incorrect synchronization will cause circulating currents between the two SiPs.
Keep sensitive analog signal traces away from the PI3302-00-LGIZ SiP and its input/output capacitor loops. Even with ZVS, the 1 MHz fundamental and its harmonics can couple into nearby analog paths. Place the SiP near the board edge or in a corner where the high-current loops can be contained within a small copper pour, and use the inner layers as a continuous ground shield between the power SiP and analog/RF circuits.
Compliance Information
Specific RoHS, REACH, lead-free, halogen-free, and conflict-mineral compliance data were not present in the verified web data and should be confirmed against the Vicor PI3302-00 datasheet and product page. AEC-Q100 is not applicable as this is an industrial-grade ZVS buck regulator SiP rather than an automotive-qualified IC.
