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AP1635 데이터시트(PDF) 3 Page - Diodes Incorporated

부품명 AP1635
상세설명  PWM/PFM DUAL MODE STEP-DOWN DC/DC CONVERTER
PDF  7 Pages
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제조업체  DIODES [Diodes Incorporated]
홈페이지  http://www.diodes.com
Logo DIODES - Diodes Incorporated

AP1635 데이터시트(HTML) 3 Page - Diodes Incorporated

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AP1635
PWM/PFM DUAL MODE STEP-DOWN DC/DC
CONVERTER
AP1635 Rev. 3
3 of 7
OCTOBER 2006
www.diodes.com
© Diodes Incorporated
Absolute Maximum Ratings
Ta=25°C
Symbol
Parameter
Ratings
Units
VCC/SVCC
VIN Pin Voltage
-0.3 ~ 5.0
V
VSW
SW Pin Voltage
-0.3 ~ VIN+0.3
V
VFB
FB Pin Voltage
-0.3 ~ VIN+0.3
V
VCE/SS
CE/SS Pin Voltage
-0.3 ~ VIN+0.3
V
Pd
Continuous Total
Power Dissipation
Internal limited
Topr
Operating Ambient
Temperature
-25 ~ +80
°C
Tstg
Storage Temperature
-40 ~ +125
°C
Electrical Characteristics
VIN=5V, VOUT＝2V, Load=300mA, Ta=25°C
Sym.
Parameter
Conditions
Min.
Typ.
Max.
Units
VFB
FB
0.975
1.0
1.025
V
VIN
Input Voltage
2.2
-
5
V
Line Regulation
VIN=2.2~5V, Load=10mA
-
-
0.12
%
Load Regulation
IOUT=10~1200mA
-
-
1.2
%
VUVLO
UVLO Voltage（min.
operating voltage）
VCC, voltage required to maintain H at
VOUT
-
-
2
V
ICC
Operating Current
CE/SS=VIN, No Load
-
100
150
µA
ICCQ
Supply Current
No external components,
CE/SS=VIN, VFB=1.2V
-
90
120
µA
ISTB
Stand-by Current
No external components,
CE/SS=0V, VFB=0V
-
6
-
µA
ICL
Current Limit
peak current
VIN=5V, VOUT=2V
1200
1400
1600
mA
Fosc
Oscillator Frequency Load=300mA, VIN=5V, VOUT=2V
500
700
-
kHz
MAXDTY Maximum Duty Ratio
85
90
-
%
PFMDTY PFM Duty Ratio
No load
15
25
35
%
VCEH
CE/SS ”High” Voltage
Apply 1.4V (min.) to CE/SS, determine
VOUT ”High”
1.4
-
-
V
VCEL
CE/SS ”Low” Voltage Same as VCEH, determine VOUT/”Low”
-
-
0.6
V
EFFI
Efficiency
VCC=5V, VOUT=3.3V, Load=300mA
-
93
-
%
Rdson Rdson Condition
IOUT=300mA, VIN=5V, VOUT=2V
-
350
450
mΩ



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