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APW7134 Datasheet(PDF) 5 Page - Kingbright Corporation

Part No. APW7134
Description  Dual 1.5MHz, 600mA Synchronous Step-Down Converter
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Maker  KINGBRIGHT [Kingbright Corporation]
Homepage  http://www.us.kingbright.com
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APW7134 Datasheet(HTML) 5 Page - Kingbright Corporation

 
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Copyright
© ANPEC Electronics Corp.
Rev. A.1 - Aug., 2006
APW7134
www.anpec.com.tw
5
Electrical Characteristics (Cont.)
The * denotes the specifications that apply over TA = -40
°C ~ 85°C, otherwise specifications are at TA=25°C
APW7134
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
IQ-SD
Each Converter Quiescent Current in
Shutdown
VEN1/EN2=0V,VIN=4.2V
0.1
1
µA
fOSC
Each Converter Oscillator Frequency
VFB=0.6V
1.2
1.5
1.8
MHz
fOSC_FFB Each Converter Frequency Foldback
VFB=0V
210
KHz
RDS-P
Each Converter On Resistance of
PMOSFET
ISW=100mA
0.4
0.5
RDS-N
Each Converter On Resistance of
NMOSFET
ISW=-100mA
0.35
0.45
ILSW
Each Converter SW Leakage Current
VEN1=0V,VSW=0V
or 5V,VIN=5V
±0.01
±1
µA
VEN1/EN2 Each Converter Enable Threashold
*
0.3
1
1.5
V
IEN1/EN2 EN1/EN2 Leakage Current
*
±0.01
±1
µA
Application Circuit
EN1
SW1
FB1
EN2
SW2
FB2
IN1
IN2
GND1 GND2
APW7134
CIN1
4.7uF
R5
100K
VIN1/IN2
OFF ON
OFF ON
CIN2
4.7uF
R6
100K
VOUT1
1.8V
600mA
VOUT2
3.3V
600mA
COUT1
10uF
COUT2
10uF
R1
300K
R4
150K
R3
680K
R2
150K
L1
2.2uH
L2
2.2uH
Typical Application
1
3
6
7
5
4
8
2
10
9


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