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AP1623 Datasheet(PDF) 3 Page - Anachip Corp

Part # AP1623
Description  PWM Control Step-Down Switching Regulator-Converter
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Manufacturer  ANACHIP [Anachip Corp]
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AP1623 Datasheet(HTML) 3 Page - Anachip Corp

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AP1623
PWM Control Step-Down Switching Regulator-Controllers
Anachip Corp.
www.anachip.com.tw
Rev. 0.1 Feb 10, 2004
3/6
Electrical Characteristics (VIN = 5V, T
a=25°C, unless otherwise specified)
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
VOUT(E) Output voltage
*1
-
VOUT(S)
×0.976
VOUT(S)
VOUT(S)
×1.024
V
VIN
Input voltage
AP1623 Series
2.5
--
16
V
ISW
Switch Current
Duty = 50%
3
--
--
A
ISS1
Current consumption 1
VOUT=VOUT(S) ×1.2
--
35
60
µA
ISSS
Current consumption during power off
VON/OFF =0V
--
--
0.5
µA
∆VOUT1 Line regulation
VIN=VOUT(S) ×1.2 to ×1.4
*2
--
30
60
mV
∆VOUT2 Load regulation
Load current=10µA to IOUT(See
below) ×1.25
--
30
60
mV
∆VOUT
/∆Ta
Output voltage temperature coefficient Ta= -40°C to 85°C
--
±VOUT(S)
×5E-5
--
V/°C
VOUT(S)2.5V
153
180
207
fOSC
Oscillation frequency
Measure
waveform at
SW pin
VOUT(S)2.4V
144
180
216
KHz
VSH
Evaluate oscillation at SW pin
1.8
--
--
VSL
Power-Off pin input voltage
Evaluate oscillation stop at SW
pin
--
--
0.3
V
ISH
--
-0.1
--
0.1
µA
ISL
Power-Off pin input leakage current
--
-0.1
--
0.1
µA
TSS
Soft-Start time
--
4.0
8.0
16.0
ms
EFFI
Efficiency
VIN = 5V, VOUT = 2.5V IOUT = 1A
--
93
--
%
Conditions:
The recommended components are connected to the IC, unless otherwise indicated. VIN=VOUT(S) ×1.2[V],
IOUT=120[mA] (VIN=2.5V, if VOUT(S) 2.0V.)
Peripheral components:
Coil
: Sumida Electric Co., Ltd. CD54 (47µH).
Diode
: Matsushita Electronics Corporation MA720(Schottky type).
Capacitor
: Matsushita Electronics Corporation TE (16V, 22µF tantalum type).
The power-off pin is connected to VIN.
Notes:
The output voltage indicated above represents a typical output voltage set up. These specifications apply in
common to AP1623, unless otherwise noted.
*1 VOUT(S) Specified output voltage value.
VOUT(E) Actual output voltage value.
*2 VIN=2.5V to 2.94V, if VOUT(S) 2.0V.


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