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RT9901 데이터시트(Datasheet) 6 Page - Richtek Technology Corporation

부품명 RT9901
상세내용  4 Channel DC/DC Converters IC with High-Efficiency Step-Up and Step-Down
PDF  19 Pages
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제조사  RICHTEK [Richtek Technology Corporation]
홈페이지  http://www.richtek.com
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 6 page
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RT9901
Preliminary
6
DS9901-12 August 2007
www.richtek.com
Electrical Characteristics
(VDDM =3.3V, TA = 25°C, Unless Otherwise specification)
To be continued
Parameter
Symbol
Test Condition
Min
Typ
Max
Units
Supply Voltage
Minimum Startup Voltage (Boost)
VST
Boost loading < 1mA
--
1.5
--
V
VDDM Operating Voltage
VVDDM
VDDM Pin Voltage
2.4
--
5.5
V
VDD1, VDD2, VDD3 Operating
Voltage
VVDD1
VVDD2,
VVDD3
VDD1, VDD2, VDD3 Pin
Voltage
1.5
5.5
V
VDDM Over Voltage Protection
--
6.5
--
V
Supply Current
Shutdown Supply Current
IOFF
VENM pin=0V
--
0.01
1
μA
Charge Pump Current
IVDDM
VVDDM = 3.3V, VENM = 3.3V,
VEN1 = 0V, VEN2 = 0V,
VEN3 = 0V
--
30
42
μA
CH1 DC/DC Converter + Voltage
Detector Supply Current
IVDDM
VVDDM = 3.3V,
VFB1 = 0.9V
VENM = 3.3V, VEN1 = 3.3V,
VEN2 = 0V, VEN3 = 0V
--
250
350
μA
CH2 DC/DC Converter Supply
Current
IVDDM
VVDDM = 3.3V,
VFB2 = 0.9V
VENM = 3.3V, VEN1 = 0V,
VEN2 = 3.3V, VEN3 = 0V
--
250
350
μA
CH3 DC/DC Converter Supply
Current
IVDDM
VVDDM = 3.3V,
VFB3 = 0.9V
VENM = 3.3V, VEN1 = 0V,
VEN2 = 0V, VEN3 = 3.3V
--
250
350
μA
Absolute Maximum Ratings
Supply Input Voltage (VDDM, VDD1, VDD2,VDD3,VDDC) -----------------------------------------------------
0.3 to 7V
LX1 Pin Switch Voltage -----------------------------------------------------------------------------------------
0.3V to 7V
LX2 Pin Switch Voltage -----------------------------------------------------------------------------------------
0.3V to (VDD2 + 0.3V)
LX3 Pin Switch Voltage -----------------------------------------------------------------------------------------
0.3V to (VDD3 + 0.3V)
CX Pin Switch Voltage ------------------------------------------------------------------------------------------
0.3V to (VDDC + 0.3V)
Other I/O Pin Voltage --------------------------------------------------------------------------------------------
0.3V to (VDDM+ 0.3V)
Package Thermal Resistance
VQFN-32L 5x5,
θJA ----------------------------------------------------------------------------------------------- 34°C/W
Lead Temperature (Soldering, 10 sec.) ---------------------------------------------------------------------- 260
°C
Operation Temperature Range ---------------------------------------------------------------------------------
40°C to 85°C
Junction Temperature Range ----------------------------------------------------------------------------------- 0
°C to 125°C
Storage Temperature Range -----------------------------------------------------------------------------------
65°C to 150°C
ESD Susceptibility
HBM (Human Body Mode) ------------------------------------------------------------------------------------- 2kV
MM (Machine Mode) --------------------------------------------------------------------------------------------- 200V




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