RTQ2134-QA

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is a registered trademark of Richtek Technology Corporation.

DSQ2134-QA-02

May

2022

www.richtek.com

11

Absolute Maximum Ratings

(Note 1)

⚫

Supply Input Voltage -------------------------------------------------------------------------------------------------

−0.3V to 6.5V

⚫

LX Pin Switch Voltage------------------------------------------------------------------------------------------------

−0.3V to 7.3V

< 100ns ------------------------------------------------------------------------------------------------------------------

−5V to 9V

⚫

Other I/O Pin Voltages -----------------------------------------------------------------------------------------------

−0.3V to 7.3V

⚫

Power Dissipation, PD @ TA = 25

C

WET-WQFN-30L 4.5x5 (FC) --------------------------------------------------------------------------------------- 2.87W

⚫

Package Thermal Resistance

(Note 2)

WET-WQFN-30L 4.5x5 (FC),

JA ---------------------------------------------------------------------------------34.8C/W

WET-WQFN-30L 4.5x5 (FC),

JC(Top)----------------------------------------------------------------------------18.2C/W

WET-WQFN-30L 4.5x5 (FC),

JB ---------------------------------------------------------------------------------13.2C/W

⚫

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

C

⚫

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

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 (for 2 + 2 application)------------------------------------------------------------- 3.3V to 6V

⚫

Supply Input Voltage (for 2 + 1 + 1 application) ------------------------------------------------------- 3V to 6V

⚫

VIO Input Voltage --------------------------------------------------------------------------------------------- 1.7V to VIN

⚫

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

−40C to 150C

Electrical Characteristics

(VIN = 3.7V, TJ = −40C to 125C, unless otherwise specified)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Analog Input Voltage

VAVIN

For 2 + 2 application

3.3

--

6

V

Power Input Voltage

VPVIN

For 2 + 2 application

3.3

--

6

V

Shutdown Current

ISHDN

EN = 0V, Digital circuit doesn't work

--

1

20

A

Buck Off Current

ISDBO

EN = VIO = 1.8V, disable all Buck by

software

--

20

80

A

1Phase no Switching

Current

ISLP

VOUT = 1.2 x VOUT_SETTING

--

70

120

A

Under-Voltage Lockout

Threshold

VUVLO

VIN rising

2.1

2.32

2.45

V

Under-Voltage Lockout

Hysteresis

VUVLO

--

300

--

mV

High-Side Switch

On-Resistance

RDS(ON)_H

VIN = 5V

18

25

45

m



Low-Side Switch

On-Resistance

RDS(ON)_L

VIN = 5V

8

15

25

m

