LTC4126EV#TRMPBF Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
The LTC4126EV#TRMPBF is a single-cell linear battery charger IC from Analog Devices designed for Li-ion and Li-polymer batteries in a compact 12-lead QFN package. It features an adjustable charge termination threshold and a single charging channel with programmable current. Available worldwide in tape-and-reel packaging for high-volume portable and wearable device production.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 12
- Lifecycle
- ACTIVE
- Datasheet
- LTC4126EV#TRMPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.5900(MOQ 19)
- Temp Range
- -20.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC4126EV#TRMPBF?
- Single-channel linear Li-ion/Li-polymer charger with adjustable charge termination threshold for flexible battery management
- Compact 12-lead QFN (3 mm x 3 mm) package enabling space-constrained portable and wearable designs
- Tape-and-reel packaging (TRMPBF) optimized for automated SMT assembly in high-volume production
- Programmable charge current allowing easy adaptation to different battery capacities without external components
What is LTC4126EV#TRMPBF used for?
The LTC4126EV#TRMPBF is well suited to single-cell Li-ion battery charging in wearables, wireless earbuds, and compact IoT sensor nodes where PCB area below 10 mm² is a constraint. Its adjustable termination threshold enables designers to tune end-of-charge voltage for lithium-polymer pouch cells with capacities ranging from a few milliamp-hours to several hundred milliamp-hours. The device is also used in medical wearables and smart cards requiring a low-noise linear charge path free of switching noise.
What are the specifications of LTC4126EV#TRMPBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1530 |
| YTEOL | 9 |
| Adjustable Threshold | YES |
| Analog IC - Other Type | LINEAR BATTERY CHARGER |
| JESD-30 Code | S-PQCC-N12 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC12,.08SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.7V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | OTHER |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Where can I find the LTC4126EV#TRMPBF datasheet?
LTC4126EV#TRMPBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC4126EV#TRMPBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What cell chemistry and how many cells can the LTC4126EV#TRMPBF charge simultaneously?
The LTC4126EV#TRMPBF is designed for 1-cell (single-series) Li-ion or Li-polymer batteries only, with a typical float voltage of 4.2 V. It integrates 1 charging channel, so multi-cell packs require external balancing circuitry. This single-cell focus makes it ideal for compact wearables and sensor nodes powered by small pouch cells in the 50 mAh to 500 mAh capacity range.
How does the QFN package of the LTC4126EV#TRMPBF affect thermal management during charging?
The 12-lead QFN package measures approximately 3 mm x 3 mm with an exposed paddle that conducts heat to the PCB ground plane. As a linear charger, the LTC4126EV#TRMPBF dissipates the voltage difference between the input USB rail (typically 5 V) and the battery as heat, limiting practical charge current to around 150 mA to 200 mA without additional thermal relief copper pour on a 2-layer PCB.
When is LTC4126EV#TRMPBF a better fit than a switching charger IC for a wearable design?
The LTC4126EV#TRMPBF suits wearables where switching noise would interfere with a nearby 2.4 GHz BLE antenna or precision analog sensor. A linear topology generates no switching harmonics, whereas a buck-mode charger operating at 1 MHz to 4 MHz can couple interference into sensitive RF or ADC circuits. For battery capacities under 300 mAh, the efficiency penalty of linear charging is typically less than 200 mW, which is acceptable in body-worn devices.
Is the LTC4126EV#TRMPBF available in tape-and-reel format suitable for automated pick-and-place assembly?
Yes, the TRMPBF suffix denotes a 3,000-piece tape-and-reel reel in a 7-inch carrier optimized for automated SMT pick-and-place equipment. The QFN-12 package on 0.5 mm lead pitch is handled by standard 8 mm tape in most commercial assembly lines, and the PBF designation confirms the part meets RoHS lead-free solder reflow compatibility up to 260 °C peak reflow temperature.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 19+ | $4.7600 | $90.44 |
| 250+ | $4.0311 | $1007.77 |
| 500+ | $3.9875 | $1993.75 |
| 1000+ | $3.5900 | $3590.00 |
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