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RT9241APS Datasheet(PDF) 7 Page - Richtek Technology Corporation

Part # RT9241APS
Description  Two-Phase DC/DC Controller for CPU Core Power Supply
PDF  17 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9241APS Datasheet(HTML) 7 Page - Richtek Technology Corporation

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RT9241A/B
7
DS9241AB-05
March 2007
www.richtek.com
Absolute Maximum Ratings
Supply Voltage ---------------------------------------------------------------------------------------------------- 7V
Input, Output or I/O Voltage ------------------------------------------------------------------------------------ GND-0.3V to VDD+0.3V
Power Dissipation, PD @ TA = 25
°C
SOP-20 ------------------------------------------------------------------------------------------------------------- 0.625W
Package Thermal Resistance
SOP-20,
θJA -----------------------------------------------------------------------------------------------------------------------------------------------------110°C /W
Ambient Temperature Range ----------------------------------------------------------------------------------- 0
°C to 70°C
Junction Temperature Range ----------------------------------------------------------------------------------- 0
°C to 125°C
Storage Temperature Range -----------------------------------------------------------------------------------
−40°C to 150°C
Lead Temperature (Soldering, 10 sec.) ---------------------------------------------------------------------- 260
°C
Electrical Characteristics
(VDD = 5V, GND = 0V, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
VDD Supply Current
Nominal Supply Current
IDD
PWM 1,2 Open
--
4
10
mA
Power-On Reset
VDD Rising Threshold
4.2
4.35
4.6
V
VDD Falling Threshold
--
3.85
--
V
Hysteresis
0.2
0.6
--
V
VDVD Rising Trip Threshold
1.19
1.25
1.31
V
Oscillator
RT9241A
170
200
230
Frequency
RT9241B
For each phase
85
100
115
kHz
Ramp Amplitude
--
1.7
--
V
Ramp Valley
1.0
1.3
--
V
Maximum On Time of Each Channel
70
75
80
%
Reference and DAC
DACOUT Voltage Accuracy
-1.0
--
+1.0
%
DAC (VID0-VID4) Input Low Voltage
--
--
0.8
V
DAC (VID0-VID4) Input High Voltage
2.0
--
--
V
DAC (VID0-VID4) Bias Current
20
28
36
μA
PWM Controller Error Amplifier
DC Gain
--
85
--
dB
Bandwidth
--
10
--
MHz
Slew Rate
CL = 10pF
--
5
--
V/
μs
To be continued



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