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AP1604A датащи(PDF) 3 Page - Diodes Incorporated

номер детали AP1604A
подробное описание детали  PWM/PFM DUAL MODE STEP-DOWN DC/DC
PDF  7 Pages
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производитель  DIODES [Diodes Incorporated]
домашняя страница  http://www.diodes.com
Logo DIODES - Diodes Incorporated

AP1604A датащи(HTML) 3 Page - Diodes Incorporated

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AP1604A
PWM/PFM DUAL MODE STEP-DOWN DC/DC
CONVERTER
AP1604A Rev. 2
3 of 7
FEBRUARY 2009
www.diodes.com
© Diodes Incorporated
Absolute Maximum Ratings
(TA=25°C)
Symbol
Parameter
Ratings
Units
VCC/SVCC
VIN Pin Voltage
-0.3 ~ 6.5
V
VOUT
VOUT 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
TOP
Operating Ambient Temperature
-25 ~ +80
°C
TST
Storage Temperature Range
-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
-
5.5
V
Line Regulation
VIN = 2.2 ~ 5.5V, Load = 10mA
-
-
0.12
%
Load Regulation
IOUT = 10 ~ 800mA
-
-
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
-
2
-
μA
ICL
Current Limit
peak current
VIN = 5V, VOUT = 2V
800
1000
1200
mA
Fosc
Oscillator Frequency
Load = 300mA, VIN = 5V, VOUT = 2V
500
600
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
m
Ω



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