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RT6254BHGJ6F Datasheet(PDF) 6 Page - Richtek Technology Corporation

Part # RT6254BHGJ6F
Description  ACOT Step-Down Converter
Download  18 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT6254BHGJ6F Datasheet(HTML) 6 Page - Richtek Technology Corporation

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RT6254A/B
6
DS6254A/B-02 March 2017
www.richtek.com
©
Copyright 2017 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Note 1.
Stresses beyond those listed “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 may affect
device reliability.
Note 2.
θJA is measured in the natural convection at TA = 25°C on a Four-layer Richtek Evaluation Board. θJC is measured at the
lead of the package.
Note 3.
Devices are ESD sensitive. Handling precaution is recommended.
Note 4.
The device is not guaranteed to function outside its operating conditions.
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Enable Voltage
EN Input Voltage
Logic-High
VEN_H
1.5
--
--
V
Logic= Low
VEN_L
--
--
0.4
V
Feedback Voltage
Feedback Voltage
VREF
0.594
0.6
0.606
V
Feedback Current
IFB
VFB = 4V
50
--
50
nA
Internal MOSFET
High-Side Switch-On Resistance
RDS(ON)_H
VBOOT  VLX = 4.8V
--
48
--
m
Low-Side Switch-On Resistance
RDS(ON)_L
--
25
--
m
Discharge FET RON
RDISCHG
--
50
--
Current Limit
Hide-Side Switch Current Limit
ILIM_H
--
10
--
A
Low-Side Switch Valley Current Limit ILIM_L
4.2
6.2
8.2
A
Switching Frequency
Oscillator Frequency
fSW
400
500
600
kHz
On-Time Timer Control
Minimum On-Time
tON(MIN)
VIN = VIN(MAX)
--
60
--
ns
Minimum Off-Time
tOFF(MIN)
--
200
--
ns
Thermal Shutdown
Thermal Shutdown Threshold
TSD
--
150
--
C
Thermal Shutdown Hysteresis
TSD
--
15
--
C
Output Under Voltage
UVP Trip Threshold
UVP detect
--
60
--
%
Hysteresis
--
10
--
%
Power Good for TSOT 23-8 (FC) Package
Power Good Threshold
VPGOOD
FB rising
85
90
95
%
FB falling
80
85
90
%


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