LP28057A – 00

Jan.-2019

www.lowpowersemi.com

Page 3 of 7

Preliminary Datasheet

LP28057A

Function Block Diagram

8

6

7

2

3

5

4

SCHMITT

CA

MA

VA

C1

C2

C3

REF

STAT2

STAT1

SHDN

TO BAT

VCC

R3

R4

R5

ISET

VSS

R2

R1

BAT

VIN

1X

+

+

+

+

+

+

-

-

-

-

-

-

EN

Absolute Maximum Ratings

Note 1



Input to GND(VIN) ------------------------------------------------------------------------------------------------------------------ -0.3V to 10V



BAT to GND ------------------------------------------------------------------------------------------------------------------------------ -5V to 8V



VIN to BAT ----------------------------------------------------------------------------------------------------------------------------------------- 8V



Other Pin to GND --------------------------------------------------------------------------------------------------------------------- -0.3V to 8V



BAT Short-circuit Duration-------------------------------------------------------------------------------------------------------------Continuous



Storage Temperature --------------------------------------------------------------------------------------------------------------- -45℃ to 165℃



Operating Junction Temperature Range (TJ) ---------------------------------------------------------------------------------- -20℃ to 85°C



Maximum Soldering Temperature (at leads, 10 sec) ----------------------------------------------------------------------------------- 260°C

Note 1.

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress

ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections

of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

Thermal Information



Maximum Power Dissipation (PD,TA=25°C) ---------------------------------------------------------------------------------------------- 2W



Thermal Resistance (JA) ---------------------------------------------------------------------------------------------------------------------- 50℃/W

ESD Susceptibility



HBM(Human Body Mode) ----------------------------------------------------------------------------------------------------------------------- 2KV



MM(Machine Mode) ------------------------------------------------------------------------------------------------------------------------------- 200V