LP28303ASPF datasheet(1/8 Pages) POWER

部件名	LP28303ASPF

功能描述	2.5A Synchronous Buck Li-ion Charger

PDF	8 Pages

Scroll/Zoom	100%

制造商	POWER [Lowpower Semiconductor inc]

网页	http://www.lowpowersemi.com

标志

1 / 8 page

LP28303A-00

Apr.-2017

Email: marketing@lowpowersemi.com

www.lowpowersemi.com

Page 1 of 8

Preliminary Datasheet

LP28303A

2.5A Synchronous Buck Li-ion Charger

General Description

The LP28303A is a 2.5A Li-Ion battery charger. It

utilizes a 600KHz synchronous buck converter

topology to reduce power dissipation during charging.

Low power dissipation and internal MOSFET allow a

physically small charger that can be embedded in a

wide range of handheld applications. The LP28303A

includes complete charge termination circuitry,

automatic recharge and ±1% 4.2V float voltage.

Battery

charge

current,

charge

timeout

and

end-of-charge indication parameters are set with

external components. Additional features include

shorted cell detection; temperature qualified charging

and overvoltage protection. The LP28303A is available

in a low profile ESOP8&TDFN-10 and package.

Order Information

LP28303A

F: Pb-Free

Package Type

SP: ESOP-8

QV: TDFN-10

Applications



Portable Media Players



Cellular and Smart mobile phone



PDA/DSC



Handheld Battery-Powered Devices



Handheld Computers



Charging Docks and Cradles

Features



Input voltage range 4.5V~5.5V



Dynamic input current allocation for maximum

charging rate



2.5A Maximum Charge Current



No External MOSFETs and Blocking Diode

Required



Efficiency up to 90%



Constant-Current/Constant-Voltage

Operation

with Thermal Regulation to Maximize Charge

Rate Without Risk of Overheating



Optional Battery Temperature Monitoring Before

and During Charge Automatic Sleep Mode for

Low-Power



Over Current Protection



Consumption Available in ESOP8 &

TDFN-10 3*3mm



RoHS Compliant and 100% Lead (Pb)-Free

Typical Application Circuit

SW

6

CS

5

BAT

4

AGND

7

VIN

8

CHRG

1

FULL

2

NTC

3

PGND

9

VIN

VBAT

CIN

22uF

R1

2KΩ

LED1

LED2

R4

10KΩ

L

4.7uH

R2

2KΩ

R3

10KΩ

RCS

25mΩ

CBAT

22uF

Marking Information

Device

Marking

Package

Shipping

LP28303ASPF

LP28303AQVF

LPS

LP28303A

YWX

ESOP8

TDFN10

4K/REEL

5K/REEL

Marking indication:

Y:Production year W:Production week X: Series Number

类似零件编号 - LP28303ASPF

制造商	部件名	数据表	功能描述
Lowpower Semiconductor ...	LP28300	452Kb / 10P	2A Synchronous Buck Li-ion Charger
	LP28301	662Kb / 9P	2A Synchronous Buck Li-ion Charger
	LP28301QVF	662Kb / 9P	2A Synchronous Buck Li-ion Charger

More results

类似说明 - LP28303ASPF

制造商	部件名	数据表	功能描述
Linear Technology	LTC4001	235Kb / 20P	2A Synchronous Buck Li-Ion Charger
Linear Technology	LTC4001-1	240Kb / 20P	2A Synchronous Buck Li-Ion Charger
Lowpower Semiconductor ...	LP28300	452Kb / 10P	2A Synchronous Buck Li-ion Charger
Linear Technology	LTC4001	240Kb / 20P	2A Synchronous Buck Li-Ion Charger
Linear Technology	LTC4001-1	236Kb / 20P	2A Synchronous Buck Li-Ion Charger
Lowpower Semiconductor ...	LP28301	662Kb / 9P	2A Synchronous Buck Li-ion Charger
Shenzhen Huazhimei Semi...	HM5081	1Mb / 9P	4.5A Synchronous Buck Li-ion Charger
	HM5082	1Mb / 9P	3A Synchronous Buck 2 Cells Li-ion Charger
	HM5083	1Mb / 9P	3A Synchronous Buck 3 Cells Li-ion Charger
	HM5084	1Mb / 9P	2.5A Synchronous Buck 4 Cells Li-ion charger