STPMIC02 STMicroelectronics Integrated Circuit (Quad Flat No-Lead) In Stock
STPMIC02 is a 4-channel power management IC from STMicroelectronics integrating 2 electronic fuses and 2 switching regulators in a compact 24-pin QFN package. It provides programmable over-current protection and adjustable threshold control for multi-rail embedded system power architectures. Designed for industrial and IoT platforms requiring integrated power supervision and regulation in a single-chip solution.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat No-Lead
- Pin Count
- 25
- Lifecycle
- OBSOLETE
- Datasheet
- STPMIC02 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -10.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of STPMIC02?
- Dual integrated e-fuse channels with adjustable over-current thresholds provide programmable short-circuit and overload protection without discrete fuse components
- Two integrated switching regulators deliver efficient DC/DC conversion for dual-rail embedded platforms from a single power management IC
- 4-channel architecture in a 24-pin QFN reduces BOM count and board area compared to discrete regulator plus e-fuse implementations
- Adjustable threshold control enables fine-tuning of protection limits to match load characteristics across different operating modes
What is STPMIC02 used for?
STPMIC02 is used in industrial IoT gateways, embedded Linux platforms, and multi-processor SoC boards requiring integrated power regulation and protection in a compact footprint. Its dual e-fuse channels protect hot-pluggable peripherals and downstream USB or PCIe loads from inrush and short-circuit events without external fuse holders. The dual switching regulators simultaneously supply independent voltage rails for processor cores and I/O domains, reducing the overall power architecture to a single PMIC in space-constrained industrial edge devices.
What are the specifications of STPMIC02?
| Manufacturer Package Code | QFN.35.45.10-24L |
| Date Of Intro | 2019-01-25 |
| YTEOL | 0 |
| Adjustable Threshold | YES |
| Analog IC - Other Type | INTEGRATED POWER MANAGEMENT UNIT |
| JESD-30 Code | R-XQCC-N24 |
| Number of Channels | 4 |
| Number of Functions | 1 |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | LCC24,.16X.18,20 |
| Package Shape | RECTANGULAR |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Supply Current-Max (Isup) | 2.5mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.3V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Temperature Grade | OTHER |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Threshold Voltage-Nom | +1.6V |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Philippines |
Where can I find the STPMIC02 datasheet?
STPMIC02 Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for STPMIC02?
Compatible alternatives and drop-in replacements for STPMIC02:
Frequently Asked Questions
How do STPMIC02's dual e-fuse channels protect downstream USB ports from short-circuit events in an industrial IoT gateway?
Each e-fuse channel in STPMIC02 monitors load current continuously and uses an adjustable threshold to trip within microseconds of a short-circuit event, electronically disconnecting the protected rail before damage occurs. In a gateway with two USB ports each drawing up to 500mA, the 2 e-fuse channels can be set independently to 600mA trip points, providing per-port protection. Unlike glass fuses, the e-fuse recovers automatically or on command after the fault clears, eliminating physical fuse replacement in field-deployed industrial equipment.
For an embedded Linux SoC board needing separate 1.8V and 3.3V rails, how does STPMIC02 simplify the power tree compared to discrete regulators?
STPMIC02 integrates 2 switching regulators that can independently supply a 1.8V core rail and a 3.3V I/O rail from a single 5V input, replacing 2 separate DC/DC converter ICs and their associated inductors, capacitors, and enable circuitry. The 4-channel PMIC also includes the 2 e-fuses, meaning a complete power tree with regulation and protection requires only STPMIC02 plus external passives — reducing component count by roughly 6-10 parts compared to a discrete implementation. This simplification cuts board area, speeds layout, and reduces qualification burden for the embedded platform.
How does the adjustable threshold feature of STPMIC02 benefit designs with dynamically changing load profiles?
The adjustable threshold in STPMIC02 allows the over-current trip point to be programmed via external resistors or a digital interface to match the expected peak current of each load profile, from tens of milliamps for sensors to hundreds of milliamps for active processors. In a system where the load switches between a 200mA sleep mode and a 1A active compute mode, setting the threshold at 1.2A protects against faults in both modes without nuisance tripping during normal load steps. This flexibility eliminates the need for multiple fixed-threshold fuse components across different board variants.
What is the package size of STPMIC02 and how does it compare in footprint to a discrete two-regulator-plus-two-fuse solution?
STPMIC02 ships in a 24-pin QFN package measuring 3.5mm x 4.5mm, integrating all 4 channels — 2 e-fuses and 2 regulators — in under 16mm² of package area. A discrete equivalent using two separate switching regulator ICs in 2mm x 3mm packages and two e-fuse ICs in SOT-23 packages would occupy roughly 30mm² to 40mm² of PCB area before passives. The STPMIC02 QFN reduces active silicon footprint by approximately 50-60% while also eliminating inter-IC routing, improving power path efficiency and EMI performance in dense industrial PCB layouts.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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