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參數(shù)資料
| 型號： | AP1624 |
| 英文描述： | JFET; Package/Case:TO-71; Leaded Process Compatible:No; Current Rating:10mA; Mounting Type:Through Hole; Peak Reflow Compatible (260 C):No; Voltage Rating:-40V |
| 中文描述： | PWM / PFM切換雙模式升壓型DC / DC控制器 |
| 文件頁數(shù)： | 3/7頁 |
| 文件大?。?/td> | 172K |
| 代理商： | AP1624 |
AP1624
PWM/PFM Dual Mode Step-up DC/DC Controller
Electrical Characteristics
AP1624
（
V
IN
=3.3V, V
OUT
＝
5V, Load=300mA
）
Ta=25
o
C
Parameter
Symbol
FB Voltage
V
FB
Maximum Input Voltage
V
CC
No external components,
CE=V
IN
,
V
FB
=1.5V
No external components,
CE=V
IN
,
V
FB
=0V
No external components,
CE=0V,
V
FB
=0.5V
Oscillator Frequency
Fosc
MAXDTY V
CC
=5V, V
FB
=0V
PFM Duty Ratio
PFMDTY No load
Apply above 0.65Vcc (min.) to CE,
Operating mode
Apply under 0.2Vcc (min.) to CE,
Standby mode
EXT Source Current
I
SOURCE
V
CE
=V
IN
, V
FB
=0V, V
EXT
=V
CC
-0.4V
EXT Sink Current
I
SINK
CE
=V
IN
, V
FB
=2V, V
EXT
=0.4V
Efficiency
EFFI
Anachip Corp.
www.anachip.com.tw
Rev.1.1 Dec.23, 2004
3/7
Conditions
Min.
1.205
6
Typ.
1.23
-
Max.
1.255
-
Units
V
V
Supply Current 1
I
CC1
-
50
100
μ
A
Supply Current 2
I
CC2
-
100
200
μ
A
Stand-by Current
I
STB
-
3
-
μ
A
255
300
345
kHz
Maximum Duty Ratio
80
-
-
%
15
25
35
%
CE ”High” Voltage
V
CEH
0.65
-
-
*Vcc
CE ”Low” Voltage
V
CEL
-
-
0.20
*Vcc
-
-
-
40
70
90
-
-
-
mA
mA
%
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