INA219 & TPS61021 In Stock 2026: Current Sense & Boost Converter ICs for Engineers
Finding reliable, in-stock ICs for your power design has never been more critical. At instockic, we maintain ready-to-ship inventory of the INA219 current/power monitor and the TPS61021 synchronous boost converter — two essential components for modern power management designs.
INA219: High-Side Current & Power Monitor
The INA219 from Texas Instruments is a zero-drift, bidirectional current/power monitor with an I²C interface. It is widely used in battery management systems, server power monitoring, and portable electronics.
Key Specifications
- Supply voltage: 3V to 5.5V
- Sense voltage range: ±320mV (programmable)
- 12-bit ADC resolution
- I²C interface, up to 16 programmable addresses
- Measures bus voltages from 0V to 26V
- Package: SOT-23-8, SOIC-8
Typical Applications
- Battery charger current monitoring
- Server and telecom power management
- Solar energy systems
- IoT and wearable devices
instockic stocks INA219 in both SOT-23-8 and SOIC-8 packages, with no minimum order quantity and same-day shipping available for qualified orders.
TPS61021: High-Efficiency Synchronous Boost Converter
The TPS61021 is a high-efficiency, synchronous boost converter from Texas Instruments, designed for single-cell Li-Ion or Li-Polymer battery applications. It delivers up to 2A output current with a typical efficiency of 95%.
Key Specifications
- Input voltage range: 0.5V to 5.5V
- Output voltage: adjustable up to 5.5V
- Output current: up to 2A
- Switching frequency: 4MHz (fixed)
- Quiescent current: 25µA (power-save mode)
- Package: WSON-8 (2mm × 2mm)
Typical Applications
- Single-cell Li-Ion battery boost
- Portable medical devices
- Wireless sensors and IoT nodes
- USB power delivery accessories
The TPS61021's compact WSON-8 package and 4MHz switching frequency make it ideal for space-constrained designs requiring minimal external components.
Why Source from instockic?
- ✅ Genuine parts — 100% authentic, traceable to authorized supply chain
- ✅ No MOQ — order from 1 piece to 10,000+
- ✅ Fast worldwide shipping — Hong Kong warehouse, DHL/FedEx express available
- ✅ B2B friendly — net terms, bulk pricing, and dedicated account support
- ✅ Real-time inventory — what you see is what ships
Request a Quote
Need INA219 or TPS61021 for your next project or production run? Contact our team for a fast quote, datasheet support, or sample request. We ship globally from Hong Kong with same-day processing on in-stock orders.