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AP1624 датащи(PDF) 3 Page - Diodes Incorporated

номер детали AP1624
подробное описание детали  PWM/PFM DUAL MODE STEP-UP DC/DC CONTROLLER
PDF  7 Pages
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производитель  DIODES [Diodes Incorporated]
домашняя страница  http://www.diodes.com
Logo DIODES - Diodes Incorporated

AP1624 датащи(HTML) 3 Page - Diodes Incorporated

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AP1624
PWM/PFM DUAL MODE STEP-UP DC/DC CONTROLLER
AP1624 Rev. 1
3 of 7
FEBRUARY 2007
www.diodes.com
© Diodes Incorporated
Absolute Maximum Ratings
TA = 25
oC
Parameter
Symbol
Ratings
Units
VIN Pin Voltage
VCC
-0.3 ~ 6.5
V
FB Pin Voltage
VFB
-0.3 ~ VCC + 0.3
V
CE Pin Voltage
VCE
-0.3 ~ VCC + 0.3
V
EXT Pin Voltage
VEXT
-0.3 ~ VCC + 0.3
V
EXT Pin Current
IEXT
±100
mA
Operating Junction Temperature
TOP
-30 ~ +105
oC
Storage Temperature
TST
-40 ~ +125
oC
Electrical Characteristics
VIN = 3.3V, VOUT = 5V, Load = 300 mA
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
200
300
350
KHz
Maximum Duty Cycle
DCMAX
No external components
VCC = 5V, VFB = 0V
80
-
-
%
PFM Duty Cycle
DCPFM
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
η
-
90
-
%
Not Recommended
for New Designs



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