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SC46208 Datasheet(PDF) 3 Page - Silan Microelectronics Joint-stock

Part # SC46208
Description  1.25MHz, 600mA, HIGH EFFICIENCY SYNCHRONOUS STEP-DOWN DC-DC CONVERTER
PDF  10 Pages
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Manufacturer  SILAN [Silan Microelectronics Joint-stock]
Direct Link  http://www.silan.com.cn
Logo SILAN - Silan Microelectronics Joint-stock

SC46208 Datasheet(HTML) 3 Page - Silan Microelectronics Joint-stock

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SC46208
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
REV:1.1
2008.09.10
Http://www.silan.com.cn
Page 3 of 11
ABSOLUTE MAXIMUM RATING
Characteristics
Symbol
Rating
Unit
Input Supply Voltage VIN
VIN
-0.3 ~ +6
V
Enable Voltage EN
VEN
-0.3 ~ VIN
V
SW Voltage
VSW
-0.3 ~ VIN+0.3
V
Output Feedback Voltage
VFB
-0.3 ~ +6
V
Operating Temperature
Tamb
-40 ~ + 85
°C
Storage Temperature
TSTG
-65 ~ +125
°C
ESD Characteristic(HBM)
ESD
4.0
KV
ELECTRICAL CHARACTERISTICS(unless otherwise noted, Tamb =25°C, VIN=3.6V, L=2.2μH, COUT=10μF,
load current ILOAD=0)
Characteristics
Symbol
Test conditions
Min.
Typ.
Max.
Unit.
Input Voltage Range
VIN
2.5
5.5
V
Feedback Voltage
VFB
Only for adjustable version
0.585
0.6
0.615
V
Quiescent Current (Switch Off)
Iswitch off FB=0.62V,or VOUT=103%
20
30
μA
Quiescent Current (Shutdown
Mode)
ISHDN
EN=0V
0.1
1
μA
Quiescent Current (PWM Mode)
Iq
FB=0.5V ,
Or VOUT=90%
200
300
μA
Output Voltage Regulation
V
△ OUT
0.5
%
Output Voltage Load Regulation
V
△ LOAD
0mA≤ IL ≤600mA
0.1
mV/mA
Feedback Current
IFB
Only for adjustable version
-50
50
nA
PMOS On Resistor
RPMOS
ISW=100mA
0.45
0.5
Ω
NMOS On Resistor
RNMOS
ISW=-100mA
0.35
0.4
Ω
PMOS Limit Current
ILIMIT
2.5V≤VIN ≤5.5V
1.25
1.5
1.75
A
FB=0.6V,or VOUT=100％
1.
1.25
1.5
MHz
Switch Frequency
FS
FB=0 V,or VOUT=0
600
KHz
Max. Duty
DMAX
FB=0.5V
100
%
Switch Leakage Current SW
ILSW
EN=0V,SW=0V or 5V,VIN =5V
±0.01
±1
μA
EN Input High Level
VH
--
1.5
V
EN Input Low Level
VL
--
0.3
V
EN Leakage Current
ILEN
--
±0.01
±1
μA
Thermal Shutdown Temperature
Tj(sd)
--
--
150
--
°C
Thermal Shutdown Hysteresis
Temperature
Thyst
--
--
20
--
°C



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