LCSC Electronics logoLCSC Electronics svg logo
Sign In
USD
Cart
NATLINEAR XT4052K421MR-G product image
  • XT4052K421MR-G thumbnail 1
  • XT4052K421MR-G thumbnail 2
  • XT4052K421MR-G thumbnail 3
  • Pinout
  • Footprint
Images for reference only

NATLINEAR XT4052K421MR-G

Manufacturer
NATLINEARAsian Brands
MPN
XT4052K421MR-G
LCSC Part #
C219048
Packaging
SOT-23-5L
Customer #
Key Attributes
Lithium Battery 800mA SOT-23-5L Battery Management RoHS
DatasheetNATLINEAR XT4052K421MR-G
RoHS Compliance1 documents available
In-Stock: 2,980
2,980 In stock, ships now
Minimum: 20Multiple: 20Sales Unit: Piece
Add to BOM List
QtyUnit PriceTotal Amount
20+$ 0.0242$ 0.48
200+$ 0.019$ 3.80
600+$ 0.0161$ 9.66
3,000+$ 0.0139$ 41.70
9,000+$ 0.0124$ 111.60
21,000+$ 0.0116$ 243.60
Standard Packaging3000/Full Reel
Better price for more quantity?
$

Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Battery Management
ManufacturerNATLINEAR
PackagingSOT-23-5L
Operating Temperature-40℃~+85℃
Interface-
Quiescent Current25uA
0V Battery ChargeNot supported
Type of BatteryLithium Battery
Operating Voltage4.25V~6.5V
FeaturesConstant current charging;Constant voltage charging;Trickle charging;Automatic recharge;Charge termination;Programmable charging current;Soft-start;Under-voltage lockout
The Chip TypeCharging IC
Balance Current-
Charge Current - Max800mA
Help & FeedbackShow similar products (0) >

Introduction

AI Translation

XT4052 is a complete single-chip linear power management IC for lithium-ion battery constant-current/constant-voltage charging. Its slim profile and compact package make it ideal for portable applications. The chip is designed to comply with USB power supply specifications. Thanks to the internal MOSFET architecture, no external sense resistors or blocking diodes are required. During high-power operation and elevated ambient temperatures, thermal feedback regulates the charge current to reduce die temperature. The charge voltage is fixed at 4.2V, and the charge current is programmable via an external resistor. When the charge voltage reaches the target value and the charge current drops to 1/10 of the programmed value, the chip automatically terminates charging. When the input power source is removed, the chip automatically enters a low-current state, reducing battery leakage current to below 2μA. The XT4052 can also be placed in shutdown mode, in which the supply current drops to 25μA. The chip integrates a battery reverse-polarity protection circuit to prevent IC breakdown and avoid accidents caused by battery self-discharge. Additional features include charge current monitoring, input undervoltage lockout, automatic recharge, and charge status indication.

Features

AI Translation
  • Programmable charge current up to 800mA
  • No external MOSFET, sense resistor, or blocking diode required
  • Complete Li-ion battery linear charge management in small form factor
  • CC/CV operation with thermal regulation for efficient battery management without overheating risk
  • Single-cell Li-ion battery charging from USB port
  • Preset charge voltage 4.2V ±1%
  • Charge current output monitoring
  • Charge status indication
  • Charge termination at 1/10 charge current
  • 25μA supply current in shutdown mode
  • 2.9V trickle charge threshold voltage
  • Soft-start to limit inrush current
  • Reverse battery protection

Applications

AI Translation
  • Mobile phones
  • PDA
  • MP3
  • Bluetooth applications