4

DS8088A-01 August 2017

www.richtek.com

RT8088A

©

Copyright

2017 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

Absolute Maximum Ratings

(Note 1)



Supply Input Voltage, VIN ----------------------------------------------------------------------------------------

−0.3V to 6.5V



Other Pins ------------------------------------------------------------------------------------------------------------

−0.3V to (VIN + 0.3V)



Power Dissipation, PD @ TA = 25

°C

WL-CSP-15B 1.31x2.11 (BSC) --------------------------------------------------------------------------------- 2W



Package Thermal Resistance (Note 2)

WL-CSP-15B 1.31x2.11 (BSC),

θJA ---------------------------------------------------------------------------- 49.8°C/W



Junction Temperature ---------------------------------------------------------------------------------------------- 150

°C



Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------ 260

°C



Storage Temperature Range -------------------------------------------------------------------------------------

−65°C to 150°C



ESD Susceptibility (Note 3)

HBM (Human Body Model) --------------------------------------------------------------------------------------- 2kV

Recommended Operating Conditions

(Note 4)



Supply Input Voltage, VIN ---------------------------------------------------------------------------------------- 2.5V to 5.5V



Junction Temperature Range -------------------------------------------------------------------------------------

−40°C to 125°C



Ambient Temperature Range -------------------------------------------------------------------------------------

−40°C to 85°C

Electrical Characteristics

(VIN = 3.7V, TA = 25

°C, unless otherwise specified)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Under-Voltage Lockout

Threshold

VUVLO

VCC Rising

--

2.35

--

V

Shutdown Supply Current

ISHDN

EN = 0V

--

1

5

A

Quiescent Current

IQ

Active, VSENSE = 0.9V, No Switching

--

75

100

A

Voltage Reference

VREF

At any set point, with a load from 0

to 3A and over input voltage range

2

--

2

%

Soft-Start Time

tSS

--

--

150

s

Logic-High

VEN_H

Rising

1.05

--

--

Enable Input

Voltage

Logic-Low

VEN_L

Falling

--

--

0.4

V

High-Side

RONH

--

48

--

Switch

On-Resistance

Low-Side

RONL

--

22

--

m



Current Limit Threshold

ICL

Valley Current, IPEAK [1:0] = 11

--

3.9

--

A

Thermal Shutdown Threshold

TS

--

150

--

C

Switching Frequency

fOSC

--

2.7

--

MHz