LTC4054LES5-4.2#PBF - 

Battery Charger for 1 Cell of Li-Ion, Li-Pol battery, 6.5V input, 4.2V / 150mA charge, TSOT-23-5

LTC4054LES5-4.2#PBF - Battery Charger for 1 Cell of Li-Ion, Li-Pol battery, 6.5V input, 4.2V / 150mA charge, TSOT-23-5

Image is for illustrative purposes only. Please refer to product description.

Manufacturer Part No:
Order Code:
Technical Datasheet:
See all Technical Docs

Product Overview

The LTC4054LES5-4.2#PBF is a 150mA standalone linear Li-ion Battery Charger for single cell lithium-ion batteries. Its small size and ability to regulate low charge currents make the LTC4054L especially well-suited for portable applications using low capacity rechargeable lithium-ion coin cells. It is specifically designed to work within USB power specifications. No external sense resistor is needed and no blocking diode is required due to the internal MOSFET architecture. Thermal feedback regulates the charge current to eliminate thermal overdesign. The charge voltage is fixed at 4.2V and the charge current can be programmed externally with a single resistor. The LTC4054L automatically terminates a charge cycle when the charge current drops to 1/10th the programmed value after the final float voltage is reached. When the input supply (wall adapter or USB supply) is removed, the LTC4054L automatically enters a low current state, dropping the battery drain current to less than 2µA.
  • Programmable charge current range (10 to 150mA)
  • No external MOSFET, sense resistor or blocking diode required
  • Constant-current/constant-voltage operation with thermal regulation
  • Maximize charge rate without risk of overheating
  • Charges single-cell Li-ion batteries directly from USB port
  • Preset 4.2V charge voltage with ±1% accuracy
  • Charge current monitor output for gas gauging
  • Automatic recharge
  • Charge status output pin
  • C/10 charge termination
  • 25µA Maximum supply current in shutdown mode
  • 2.9V Trickle charge threshold
  • Soft-start limits inrush current


Power Management, Portable Devices, Consumer Electronics, Multimedia, Wireless

Product Information

Li-Ion, Li-Pol
MSL 1 - Unlimited
Find similar products Choose and modify the attributes above to find similar products.

Related Searches


1,651 In stock

137 in stock for next day delivery (Liege stock)

1,514 in stock for next day delivery (UK stock)

see cut-off times
Check stock and lead times
More stock available week commencing 11/03/19
£2.64 £ 2.64
Price for:
Multiple: 1 Minimum: 1
Quantity Price
1 + £2.64
10 + £2.29
25 + £1.69
50 + £1.63
100 + £1.58
250 + £1.54
500 + £1.51
1000 + £1.49
No longer stocked:: No Longer Manufactured::
Add to Basket
Add Line Note
Total Price:
Total Price: ( )
Total Price: --

Customer Reviews


Like to see information about this product from other customers?

 Read discussions, blogs, documents from our community members.


Select document type(s) you want to see and click “Apply Filters” button
Post a question to one of our experts or start a discussion and get responses from supplier experts and fellow engineers in our community.