LTC4056ETS8-4.2#TRMPBF Analog Devices Integrated Circuit (SOT23 (8-Pin)) In Stock
The LTC4056ETS8-4.2#TRMPBF is a monolithic single-cell Li-Ion linear battery charger controller with programmable charge current limit (ILIM), fixed 4.2 V regulation voltage, and an 8-pin SOT-23 package. It integrates all charge-control circuitry for USB and wall-adapter powered portable devices with minimal external components. Available from authorized distributors in tape-and-reel packaging with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- SOT23 (8-Pin)
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LTC4056ETS8-4.2#TRMPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.3125(MOQ 19)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC4056ETS8-4.2#TRMPBF?
- Fixed 4.2 V charge termination voltage with programmable ILIM pin enables safe single-cell Li-Ion charging from 5 V USB or adapter inputs
- Monolithic linear architecture requires no external pass transistor or sense resistor, minimizing BOM to under 5 components
- 8-pin SOT-23 package in tape-and-reel format suits high-volume automated SMD assembly for compact portable electronics
What is LTC4056ETS8-4.2#TRMPBF used for?
The LTC4056ETS8-4.2#TRMPBF is designed for single-cell Li-Ion battery charging in USB-powered wearables, wireless earbuds, handheld instruments, and IoT devices where board space is limited. Its programmable ILIM feature allows designers to set charge current to match USB port current limits of 100 mA or 500 mA without external current sense resistors. The compact 8-pin SOT-23 footprint with integrated thermal protection makes it a reliable drop-in charger solution for high-volume consumer electronics.
What are the specifications of LTC4056ETS8-4.2#TRMPBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1637 |
| YTEOL | 8.5 |
| Adjustable Threshold | YES |
| Analog IC - Other Type | LINEAR BATTERY CHARGER |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| ## LTC4056ETS8-4.2#TRMPBF Alternates Showing results | Image |
| Package | SOT23 (8-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Where can I find the LTC4056ETS8-4.2#TRMPBF datasheet?
LTC4056ETS8-4.2#TRMPBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC4056ETS8-4.2#TRMPBF?
Compatible alternatives and drop-in replacements for LTC4056ETS8-4.2#TRMPBF:
suggested
suggested
suggested
Frequently Asked Questions
What charge voltage does LTC4056ETS8-4.2#TRMPBF target and how is the charge current set?
The LTC4056ETS8-4.2#TRMPBF charges a single Li-Ion cell to a fixed 4.2 V termination voltage. The charge current is set by a resistor connected to the ILIM pin, allowing the designer to program values from approximately 50 mA up to several hundred milliamps to match the USB 100 mA (low power) or 500 mA (standard) port limits without an external current-sense resistor in the charge path.
How many external components does a complete LTC4056ETS8-4.2#TRMPBF charger circuit require?
A complete charger using the LTC4056ETS8-4.2#TRMPBF typically requires fewer than 5 external components: a programming resistor on the ILIM pin, input and output bypass capacitors (100 nF to 10 µF range), and optionally LED status resistors. This minimal BOM versus discrete charger designs reduces PCB area, assembly time, and sourcing complexity for high-volume wearable and IoT production runs.
For a USB-C powered wearable with a 150 mAh single-cell Li-Ion battery, is LTC4056ETS8-4.2#TRMPBF thermally adequate in the SOT-23 package?
The LTC4056ETS8-4.2#TRMPBF includes integrated thermal regulation that automatically reduces charge current if junction temperature approaches the thermal limit, preventing overheating without external thermistors. For a 150 mAh cell charged at 100 mA to 150 mA from a 5 V USB source with approximately 0.8 V dropout, the power dissipation stays below 120 mW — well within the SOT-23-8 package's roughly 300 mW to 500 mW thermal capability on a standard 2-layer board.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
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.
More from Analog Devices
LT3062EDCB#TRPBF
Small Outline No-lead
Integrated Circuit
LT3062EDCB#TRMPBF
Small Outline No-lead
Integrated Circuit
LT8641IUDC#TRPBF
Other
Integrated Circuit
HMC412AMS8GTR
Small Outline Packages
Integrated Circuit
LT3062HMS8E#PBF
Small Outline Packages
Integrated Circuit
LT3062IMS8E#PBF
Small Outline Packages
Integrated Circuit
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 19+ | $2.8200 | $53.58 |
| 250+ | $2.5372 | $634.29 |
| 500+ | $2.3532 | $1176.61 |
| 1000+ | $2.3125 | $2312.50 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit