RT6318B/C

6

DS6318B/C-01 December 2021

www.richtek.com

©

Copyright 2021 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

Electrical Characteristics

(VIN = 12V, TA = 25°C, unless otherwise specified)

Absolute Maximum Ratings

(Note 1)



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

−0.3V to 27V



Enable Pin Voltage, VEN -------------------------------------------------------------------------------------

−0.3V to 27V



FF Pin Voltage, VFF ---------------------------------------------------------------------------------------------------------------------------------

−0.3V to 4.5V



VOUT Pin Voltage, VOUT (RT6318B) --------------------------------------------------------------------

−0.3V to 4.5V



VOUT Pin Voltage, VOUT (RT6318C) --------------------------------------------------------------------

−0.3V to 6V



Switch Voltage, VLX -------------------------------------------------------------------------------------------

−0.3V to (VIN + 0.3V)

<30ns -----------------------------------------------------------------------------------------------------------

−5V to 28V



Boot Voltage, VBS ---------------------------------------------------------------------------------------------

(VLX − 0.3V) to (VLX + 6V)



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

−0.3V to 6V



Power Dissipation, PD @ TA = 25

°C

UQFN-12HL 3x3 (FC) ---------------------------------------------------------------------------------------- 2.79W



Package Thermal Resistance (Note 2)

UQFN-12HL 3x3 (FC),

θJA----------------------------------------------------------------------------------- 35.8°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

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Input Voltage Range

VIN

RT6318B

4.5

--

23

V

RT6318C

5.1

--

23

Supply Current

Supply Current (Shutdown)

ISHDN

VEN = 0

40

50

60

A

Supply Current (Quiescent)

IQ

IOUT = 0, VOUT = VSET x

105%, VEN = 2V

80

100

130

A

Logic Threshold

EN Input Low Voltage

VENL

--

--

0.4

V

EN Input High Voltage

VENH

0.8

--

--

V

Ultra-Sonic Mode

VEN

--

--

1.7

V

Normal Mode

VEN

2.3

--

--

V

Recommended Operating Conditions (Note 4)



Supply Input Voltage VIN (RT6318B) --------------------------------------------------------------------- 4.5V to 23V



Supply Input Voltage VIN (RT6318C) -------------------------------------------------------------------- 5.1V to 23V



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

−40°C to 125°C