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RT9641A Datasheet(PDF) 5 Page - Richtek Technology Corporation

Part # RT9641A
Description  Triple Linear Regulator Controller Support ACPI Control Interface
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9641A Datasheet(HTML) 5 Page - Richtek Technology Corporation

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RT9641A/B
DS9641A/B-11 March 2007
www.richtek.com
5
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
2.5V/3.3V (2.6V/3.43V) Linear Regulator (VOUT2)
Regulation
--
--
2.0
%
VSEN2 Nominal Voltage Level
VVSEN
RSEL = 1kΩ
--
2.5/2.6
--
V
VSEN2 Nominal Voltage Level
VVSEN2
RSEL = 1kΩ
--
3.3/3.4
--
V
VSEN2 Under-voltage Falling Threshold
--
68
--
%
VSEN2 Under-voltage Hysteresis
--
7
--
%
VSEN2 Output Current
IVSEN2
5VSB = 5V
200
300
--
mA
DRV2 Output Drive Current
IDRV2
5VSB = 5V, RSEL = 1kΩ
20
30
--
mA
DRV2 Output Impedance
RSEL = 10kΩ
--
200
--
Ω
3.3V Dual Linear Regulator (VOUT1)
Sleep-mode Regulation
--
--
2.0
%
3V3DL Nominal Voltage Level
V3V3DL
--
3.3
--
V
3V3DL Under-voltage Falling Threshold
--
2.24
--
V
3V3DL Under-voltage Hysteresis
--
230
--
mV
3V3DLSB Output Drive Current
I3V3DLSB 5VSB = 5V
5.0
10
--
mA
DLA Output Impedance
--
90
--
Ω
5V Dual Switch Controller (VOUT3)
5VDL Under-voltage Falling Threshold
--
3.40
--
V
5VDL Under-voltage Hysteresis
--
350
--
mV
5VDLSB Output Drive Current
I5VDLSB
5VDLSB = 4V
-40
--
--
mA
Timing Intervals
Active to Sleep, Input to Switching Delay
Td1
--
10
--
μs
Sleep to Active, Input to Switching Delay
Td2
CSS = 0.1μF
(1)
--
50
(1)
--
ms
Control I/O (S3, S5, EN3VDL, EN5VDL, FAULT)
High Level Threshold
2.0
--
--
V
Low Level Threshold
--
--
0.8
V
S3, S5 Internal Pull-up Impedance to 5VSB
--
50
--
k
Ω
FAULT Output Impedance
FAULT = high
--
100
--
Ω
Temperature Monitor
Fault-level Threshold
--
145
--
°C
Shutdown-level Threshold
TDS
--
155
--
°C
Note: (1) = 50ms with 0.1
μF Soft-start capacitor. The delay time is adjustable with td2 = 500xCSS (ms).


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