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RT9238CS Datasheet(PDF) 6 Page - List of Unclassifed Manufacturers

Part # RT9238CS
Description  VRM 8.5 PWM AND TRIPLE LINEAR POWER SYSTEM CONTROLLER
PDF  24 Pages
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Manufacturer  ETC [List of Unclassifed Manufacturers]
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RT9238CS Datasheet(HTML) 6 Page - List of Unclassifed Manufacturers

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RT9238
Preliminary
www.richtek-ic.com.tw
DS9238-01 July 2001
6
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
Linear Regulators (VOUT2, VOUT3, and VOUT4)
VSEN3,4 Voltage Regulation
VREG2,3,4 FIX = 0V
1.240 1.265 1.290
V
VSEN2 Regulation Voltage
VREG2
1.180 1.200 1.240
V
VSEN3 Regulation Voltage
VREG3
FIX = open
1.455 1.500 1.545
V
VSEN3 Bias Current
IBVSEN3
FIX = open
--
260
--
µA
VSEN4 Regulation Voltage
VREG4
FIX = open
1.746 1.800 1.854
V
VSEN4 Bias Current
IBVSEN4
FIX = open
--
350
--
µA
Under-Voltage Level
(All Linears) (VSEN/VREG)
VSEN3,4 Rising
--
75
--
%
Under-Voltage Hysteresis
(All Linears) (VSEN/VREG)
VSEN3,4 Falling
--
100
--
mV
Output Drive Current (All Linears)
VAUX – VDRIVER2,3,4 > 0.6V
20
40
--
mA
Synchronous PWM Controller Error Amplifier
DC Gain
--
65
--
dB
PWM Controller Gate Driver
UGATE Source
RUGATE1
VCC = 12V
VCC-VUGATE1 = 1V
--
4
7
Ω
UGATE Sink
RUGATE1 VUGATE1 = 1V
--
3
7
Ω
LGATE Source
ILGATE1
VCC = 12V, VLGATE1 = 2V
--
1
--
A
LGATE Sink
RLGATE1
VLGATE1 = 1V
--
2
6
Ω
Protection
VOUT1 Over-Voltage Trip
FB1 Rising
112
118
125
%
FAULT Souring Current
VFAULT = 8V
510
--
mA
OCSET1 Current Source
IOCSET
VOCSET1 = 4.5V
170
200
230
µA
Soft-Start Current
ISS13,24
VSS13,SS24 = 2V
--
28
--
µA
Power Good
VOUT1 Upper Threshold
FB1 Rising
108
--
112
%
VOUT1 Under Voltage
FB1 Rising
87
--
92
%
VOUT1 Hysteresis (FB1/DACOUT)
Upper/Lower Threshold
--
2
--
%
VTTPG Upper Threshold
VSEN2 Rising
--
1.08
--
V
VTTPG Delay Threshold
SS13 Rising
--
1.25
--
V
VTTPG Voltage Low
VVTTPG
IVTTPG = -4mA
--
--
0.5
V
PGOOD Voltage Low
VPGOOD
IPGOOD = -4mA
--
--
0.5
V



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