SPV1050-WST STMicroelectronics Integrated Circuit (Quad Flat No-Lead) In Stock
STMicroelectronics SPV1050-WST is an ultra-low-power energy harvester and battery charger IC with embedded MPPT and dual LDO regulators for single-channel operation. It is designed for IoT and wireless sensor nodes harvesting energy from solar cells or thermoelectric generators.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat No-Lead
- Pin Count
- 21
- Lifecycle
- ACTIVE
- Datasheet
- SPV1050-WST Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Embedded Maximum Power Point Tracking (MPPT) algorithm continuously optimizes energy extraction from solar panels and thermoelectric generators
- Ultra-low power operation with quiescent current typically under 10 µA, extending battery life in energy-constrained IoT nodes
- Dual integrated LDO regulators provide regulated output voltages for simultaneous powering of MCU and RF transceiver loads
- Single-channel linear battery charger supports Li-ion and LiPo cells with programmable charge current and termination thresholds
Applications
The SPV1050-WST is used in self-powered IoT sensor nodes and wireless monitoring systems that harvest energy from indoor or outdoor photovoltaic cells in the range of 10 µW to 100 mW. Its embedded MPPT ensures maximum energy extraction even under low-light or variable irradiance conditions typical of building automation and environmental monitoring deployments. The dual LDO outputs allow simultaneous operation of a low-power MCU and a BLE or Zigbee radio from a single harvested energy source with a rechargeable battery buffer.
Specifications
| YTEOL | 6 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | LINEAR BATTERY CHARGER |
| JESD-30 Code | S-XUUC-N21 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | DIE OR CHIP |
| Package Shape | SQUARE |
| Package Style | UNCASED CHIP |
| Supply Voltage-Max (Vsup) | 5.3V |
| Supply Voltage-Min (Vsup) | 2.2V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | NO LEAD |
| Terminal Position | UPPER |
| Threshold Voltage-Nom | +1.8V |
| 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 | Italy |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the quiescent current consumption of the SPV1050-WST, and why does it matter for battery-less IoT nodes?
The SPV1050-WST has an ultra-low quiescent current typically under 10 µA, which is critical for energy-harvesting nodes where the total system power budget may be as low as 50 µW from a small 25 mm² solar cell; reducing IC overhead current directly increases the energy available for the MCU and RF transmission.
How does the embedded MPPT algorithm in the SPV1050-WST improve energy harvesting efficiency compared to fixed-voltage regulators?
The MPPT algorithm dynamically tracks the maximum power point of the input source, which for a typical amorphous silicon solar cell shifts between 0.3 V and 0.5 V depending on irradiance; this allows the SPV1050-WST to extract up to 30% more energy than a fixed-voltage input regulator under variable indoor lighting conditions from 100 lux to 10,000 lux.
Which battery chemistries and voltage levels does the SPV1050-WST support for its battery charger function?
The SPV1050-WST supports Li-ion and LiPo battery cells with a 4.2 V maximum charge voltage; it provides a programmable charge current and an automatic termination at the end-of-charge threshold, making it compatible with single-cell lithium batteries in the 200 mAh to 1000 mAh capacity range used in compact IoT products.
Can the SPV1050-WST power both an MCU and an RF module simultaneously from its LDO outputs?
Yes, the dual integrated LDOs allow simultaneous delivery of two regulated voltages — typically one at 1.8 V for a low-power MCU and one at 3.3 V for an RF transceiver — with combined output current up to several milliamps, enabling battery-backed wireless sensor nodes to transmit data even during periods of low harvested energy.
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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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