Infineon Technologies IP1202PBF

Overview

iP1202PbF from Infineon Technologies is a dual-output, 2-phase synchronous buck power block integrating power MOSFETs, PWM controller, gate drivers, and passive components in a single 15.5 mm × 9.25 mm × 2.6 mm package. It delivers up to 15 A per channel (30 A total in single-output mode), supports 0.8 V–5.0 V output voltage, operates from 5.5 V–13.2 V input, and features 180° out-of-phase switching at 200–400 kHz per phase for high-efficiency DC/DC conversion in server VRMs and telecom POL supplies.

For engineers reviewing the iP1202PbF datasheet, iP1202PbF pinout, iP1202PbF application, or iP1202PbF equivalent, key selection criteria include per-channel current capability (15 A RMS), dual independent soft-start control, external synchronization support, overvoltage protection with 1.15×VOUT threshold, and thermal shutdown at 140°C - all critical for high-density, thermally constrained point-of-load designs.

Technical Context

The iP1202PbF implements a two-phase interleaved synchronous buck architecture with independent error amplifiers, dedicated feedback pins (FB1/FB2), and separate soft-start pins (SS1/SS2) enabling precise sequencing and current sharing in dual-output configurations. Its internal oscillator supports RT-programmable frequency (200–400 kHz per channel) and external SYNC input (480–800 kHz), while hiccup-mode or latch-type overcurrent protection is selectable via the HICCUP pin.

Each phase integrates high- and low-side MOSFETs with optimized R_DS(on) and driver stages, eliminating discrete gate drive design. The block includes integrated current-sense resistors, OVP comparators referenced to 1.15×VOUT, PGOOD monitoring with 0.85×VOUT trip threshold, and thermal sensing tied to block temperature (T_BLK), not case or ambient.

Key Specifications

Pinout & Package

Package: PQFN-32 (15.5 mm × 9.25 mm × 2.6 mm, exposed thermal pad). Thermally enhanced, lead-free, RoHS-compliant power module with integrated passives and dual-side cooling capability.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-phase synchronous buck power block applications.

Compared with MP2965GQ and TDA21472, the iP1202PbF uniquely combines independent soft-start, integrated current sensing, and 15 A/channel capability in a thermally robust 15.5 mm × 9.25 mm package - making it optimal for analog-controlled, space-constrained dual-rail industrial and telecom POL systems where layout simplicity and thermal reliability are prioritized over digital telemetry.

Availability

iP1202PbF is available at Aetrix Electronics and suitable for server VRMs, telecom point-of-load converters, FPGA power supplies, and industrial PLC I/O modules requiring stable component supply, long-lifecycle availability, and consistent thermal performance across extended temperature ranges.

Supply support for iP1202PbF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a global semiconductor leader specializing in power management, automotive, and industrial control ICs, with deep expertise in silicon and silicon carbide power devices.

The iP1202PbF belongs to Infineon's Power Block product line, designed specifically for high-efficiency, high-density point-of-load DC/DC conversion in datacenter, telecom, and industrial applications where integration, thermal performance, and reliability are critical.

FAQ

What is the maximum recommended PCB temperature for continuous 15 A/channel operation?

At 12 V input and 1.5 V output, the iP1202PbF supports 15 A per channel continuously up to 90°C PCB temperature with no airflow and no heatsink, as confirmed by Figure 3 in the datasheet. Above 90°C, derating applies per the Safe Operating Area curves on pages 5–6; at 125°C PCB temperature, max current drops to ~11 A per channel.

Can iP1202PbF operate with only one output enabled while the other is disabled?

Yes. The device supports true single-output operation: tie FB2 and SS2 to VREF (0.8 V) to disable Channel 2, while Channel 1 remains fully functional with independent feedback, soft-start, and current limiting. This configuration delivers up to 30 A from a single 0.8–5.0 V output with 2-phase interleaving.

Does the iP1202PbF require external bootstrap capacitors?

No. The iP1202PbF integrates all necessary bootstrap circuitry internally. No external bootstrap capacitors or diodes are required - simplifying layout and eliminating a common source of start-up failure in discrete high-side driver designs.

How is overvoltage protection triggered and what happens after activation?

OVP triggers when FB1 or FB2 exceeds 1.15×VOUT, causing immediate shutdown of both PWM outputs and assertion of PGOOD low. The fault persists until ENABLE is cycled low-high or VIN is fully removed and re-applied; no automatic recovery occurs to prevent repeated stress on downstream loads.