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AP1624 Datasheet(PDF) 3 Page - Anachip Corp

No. de pieza AP1624
Descripción Electrónicos  PWM/PFM Dual Mode Step-up DC/DC Controller
PDF  7 Pages
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Fabricante Electrónico  ANACHIP [Anachip Corp]
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AP1624 Datasheet(HTML) 3 Page - Anachip Corp

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AP1624
PWM/PFM Dual Mode Step-up DC/DC Controller
Anachip Corp.
www.anachip.com.tw
Rev.1.1 Dec.23, 2004
3/7
Electrical Characteristics
AP1624
（
VIN=3.3V, VOUT＝5V, Load=300mA）
Ta=25
oC
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
FB Voltage
VFB
1.205
1.23
1.255
V
Maximum Input Voltage
VCC
6
-
-
V
Supply Current 1
ICC1
No external components,
CE=VIN, VFB=1.5V
-
50
100
µA
Supply Current 2
ICC2
No external components,
CE=VIN, VFB=0V
-
100
200
µA
Stand-by Current
ISTB
No external components,
CE=0V, VFB=0.5V
-
3
-
µA
Oscillator Frequency
Fosc
255
300
345
kHz
Maximum Duty Ratio
MAXDTY
No external components
VCC=5V, VFB=0V
80
-
-
%
PFM Duty Ratio
PFMDTY No load
15
25
35
%
CE ”High” Voltage
VCEH
Apply above 0.65Vcc (min.) to CE,
Operating mode
0.65
-
-
*Vcc
CE ”Low” Voltage
VCEL
Apply under 0.2Vcc (min.) to CE,
Standby mode
-
-
0.20
*Vcc
EXT Source Current
ISOURCE
VCE=VIN, VFB=0V, VEXT=VCC-0.4V
-
40
-
mA
EXT Sink Current
ISINK
VCE=VIN, VFB=2V, VEXT=0.4V
-
70
-
mA
Efficiency
EFFI
-
90
-
%



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