AP1605 ANACHIP [Anachip Corp], AP1605 Datasheet - Page 3

• Manufacturer Part Number: AP1605
• Description: PWM/PFM Dual-mode Step-Down Switching Regulator
• Manufacturer: ANACHIP [Anachip Corp]

PWM/PFM Dual-mode Step-Down Switching Regulator
（1） Normal Application
Anachip Corp.
www.anachip.com.tw
MAXDTY Maximum Duty Ratio
PFMDTY PFM Duty Ratio
Symbol
∆V
∆V
V
EFFI
F
V
V
V
I
V
I
I
UVLO
I
I
SSS
SW
OSC
CEH
REF
SS
CEL
SH
Electrical Characteristics
SL
Typical Application Circuit
OUT1
OUT2
IN
Input Voltage
Internal Reference Voltage
UVLO Voltage
Switch Current
Current Consumption
POWER
Current Consumption
During Power Off
Line Regulation
Load Regulation
Oscillation Frequency
CE Pin “High” Voltage
CE Pin “Low” Voltage
Power-Off Pin Input
Leakage Current
Efficiency
Parameter
ON
C
R
100K
VCC
VCC
R
CE
C
0.1uF
CE
CE
PV
V
CC
CC
AP1605 Series
Voltage required to maintain
V
V
V
2.5V~7V @ I
0.1A~3A(SOP-8L),
0.1A~1.5A(TSSOP-8L)
Evaluate oscillation stop at SW
pin
--
--
V
Duty = 50%
Evaluate oscillation at SW pin
OUT
OUT
ON/OFF
IN
(V
= 5V, V
=2.5V
AP1605
IN
=0V
= 5V, T
V
Vo
SS
Conditions
OUT
=
OUT
Vref
3/6
= 2.5V I
a
=25
=0.1A
SOP-8L
TSSOP-8L
×
(1
°C
+
, unless otherwise specified)
R
R
OUT
A
B
SW
)
FB
= 1A
1.1625
D1
Min.
0.65
-0.1
-0.1
100
220
2.5
1.5
15
--
--
--
--
--
--
--
3
C
C
=~200K
R
R
A
B
Typ.
300
1.2
0.2
25
35
93
--
--
--
--
--
--
--
--
--
--
1
Rev. 1.1 Jan 18, 2005
AP1605
OUT
+
-
1.2375
Max.
100
380
2.2
0.5
1.5
0.2
0.1
0.1
35
--
--
--
--
--
7
2
*Vcc
Unit
KHz
µA
µA
µA
µA
%
%
%
%
%
V
V
V
A