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AP1605 Arkusz danych(PDF) 3 Page - Anachip Corp

Numer części AP1605
Szczegółowy opis  PWM/PFM Dual-mode Step-Down Switching Regulator
PDF  6 Pages
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Producent  ANACHIP [Anachip Corp]
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Logo ANACHIP - Anachip Corp

AP1605 Arkusz danych(HTML) 3 Page - Anachip Corp

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AP1605
PWM/PFM Dual-mode Step-Down Switching Regulator
Anachip Corp.
www.anachip.com.tw
Rev. 1.1 Jan 18, 2005
3/6
Electrical Characteristics (VIN = 5V, T
a=25°C, unless otherwise specified)
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
VIN
Input Voltage
AP1605 Series
2.5
--
7
V
VREF
Internal Reference Voltage
1.1625
1.2
1.2375
V
VUVLO
UVLO Voltage
Voltage required to maintain
VOUT
--
--
2.2
V
MAXDTY Maximum Duty Ratio
100
--
--
%
PFMDTY PFM Duty Ratio
15
25
35
%
SOP-8L
3
--
--
ISW
Switch Current
Duty = 50%
TSSOP-8L
1.5
--
--
A
ISS
Current Consumption
POWERON
VOUT=2.5V
--
35
100
µA
ISSS
Current Consumption
During Power Off
VON/OFF =0V
--
--
2
µA
∆VOUT1 Line Regulation
2.5V~7V @ IOUT=0.1A
--
0.2
0.5
%
∆VOUT2 Load Regulation
0.1A~3A(SOP-8L),
0.1A~1.5A(TSSOP-8L)
--
1
1.5
%
FOSC
Oscillation Frequency
220
300
380
KHz
VCEH
CE Pin “High” Voltage
Evaluate oscillation at SW pin
0.65
--
--
VCEL
CE Pin “Low” Voltage
Evaluate oscillation stop at SW
pin
--
--
0.2
*Vcc
ISH
--
-0.1
--
0.1
µA
ISL
Power-Off Pin Input
Leakage Current
--
-0.1
--
0.1
µA
EFFI
Efficiency
VIN = 5V, VOUT = 2.5V IOUT = 1A
--
93
--
%
Typical Application Circuit
（
1） Normal Application
+
-
CC
RA
RB
D1
OUT
VSS
FB
PVCC
SW
VCC
RVCC
CVCC
AP1605
=~200K
CE
R
CE
C
CE
)
R
R
(1
Vref
Vo
B
A
+
×
=
100K
0.1uF



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