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RT9045 Datasheet(PDF) 2 Page - Richtek Technology Corporation

Part # RT9045
Description  Cost-Effective, 1.8A Sink/Source Bus Termination Regulator
PDF  11 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9045 Datasheet(HTML) 2 Page - Richtek Technology Corporation

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RT9045
2
DS9045-05 April 2014
www.richtek.com
©
Copyright 2014 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Typical Application Circuit
Test Circuit
Figure 1. Output Voltage Tolerance,
ΔVLOAD
Figure 2. Current in Shutdown Mode, ISTBY
R1 = R2 = 100k
Ω, RTT = 50Ω / 33Ω / 25Ω
RDUMMY = 1k
Ω as for VOUT discharge when VIN is not presented but VCNTL is presented
COUT = 10
μF (Ceramic) under the worst case testing condition
CIN = 10
μF, CCNTL = 1μF, CSS = 1nF to 0.1μF
VIN
REFEN
GND
VCNTL
VOUT
RT9045
0.9V/0.75V/0.675V/0.6V
COUT
IL
VOUT
V
VIN = 1.8V/1.5V/1.35V/1.2V
VCNTL = 5V
VIN
REFEN
GND
VCNTL
VOUT
RT9045
VIN = 1.8V/1.5V/1.35V/1.2V
0.9V/0.75V/0.675V/0.6V
COUT
VOUT
V
RL
0.9V
0V
RL and COUT
Time delay
0.15V
A
VCNTL = 5V
VIN
REFEN
GND
VCNTL
VOUT
RT9045
R1
R2
CSS
VIN = 1.8V/1.5V/1.35V/1.2V
VCNTL = 5V
CCNTL
CIN
RTT
COUT RDUMMY
EN
2N7002
R3
2.2



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