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RT6255AHSGJ8F Datasheet(PDF) 7 Page - Richtek Technology Corporation

Part # RT6255AHSGJ8F
Description  ACOT Step-Down Converter
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT6255AHSGJ8F Datasheet(HTML) 7 Page - Richtek Technology Corporation

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RT6255A/B
7
DS6255A/B-02 March 2017
www.richtek.com
©
Copyright 2017 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 Input Voltage, VIN -------------------------------------------------------------------------------------------
−0.3V to 20V
Enable Pin Voltage, EN ----------------------------------------------------------------------------------------------
−0.3V to 20V
Switch Node Voltage, LX ---------------------------------------------------------------------------------------------
−0.3V to 20V
<20ns --------------------------------------------------------------------------------------------------------------------
−5V to 27V
BOOT to LX, VBOOT
− VLX -------------------------------------------------------------------------------------------- −0.3V to 6V
Other Pins ---------------------------------------------------------------------------------------------------------------
−0.3V to 6V
Power Dissipation, PD @ TA = 25
°C
TSOT-23-6 (FC) -------------------------------------------------------------------------------------------------------- 1.923W
TSOT-23-8 (FC) -------------------------------------------------------------------------------------------------------- 1.923W
Package Thermal Resistance (Note 2)
TSOT-23-6 (FC),
θJA--------------------------------------------------------------------------------------------------- 52°C/W
TSOT-23-6 (FC),
θJC --------------------------------------------------------------------------------------------------------------------------------------------- 5°C/W
TSOT-23-8 (FC),
θJA--------------------------------------------------------------------------------------------------- 52°C/W
TSOT-23-8 (FC),
θJC -------------------------------------------------------------------------------------------------- 5°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 -------------------------------------------------------------------------------------------------- 4.5V to 18V
Junction Temperature Range ----------------------------------------------------------------------------------------
−40°C to 125°C
Ambient Temperature Range ----------------------------------------------------------------------------------------
−40°C to 85°C
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply Voltage
VIN Supply Input Operating Voltage
VIN
4.5
--
18
V
VIN Under-Voltage Lockout
Threshold-Rising
VUVLO
VIN rising
3.9
4.1
4.3
V
VIN Under-Voltage Lockout
Threshold-Hysteresis
VUVLO
--
0.3
--
V
Supply current
Supply Current (Shutdown)
ISHDN
VEN = 0
--
3
--
A
Supply Current (Quiescent)
IQ
IOUT = 0
VFB = VREF x 105%
(not switching)
--
115
--
A
Soft-Start
Soft-Start Time
tSS
--
1.5
--
ms


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