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AS1324 Arkusz danych(PDF) 4 Page - ams AG

Numer części AS1324
Szczegółowy opis  1.5MHz, 600mA, DC/DC Step-Down Regulator
PDF  20 Pages
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Producent  AMSCO [ams AG]
Strona internetowa  http://www.ams.com
Logo AMSCO - ams AG

AS1324 Arkusz danych(HTML) 4 Page - ams AG

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www.austriamicrosystems.com
Revision 1.03
4 - 20
AS1324
Data Sheet - E l e c t r i c a l C h a r a c t e r i s t i c s
6 Electrical Characteristics
VIN = EN = 3.6V, VOUT < VIN - 0.5V, TAMB = -40 to +85°C, typ. values @ TAMB = +25ºC (unless otherwise specified).
Table 4. Electrical Characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VIN
Input Voltage Range
2.7
5.5
V
IQ
Quiescent Current
Powersave Mode; VFB = 0.62V or VOUT =
103%, IOUT = 0mA, TAMB = +25ºC
30
35
µA
ISHDN
Shutdown Current
Shutdown Mode; VEN = 0V, TAMB = +25ºC
0.1
1
Regulation
VFB
Regulated Feedback
Voltage
1
1. The device is tested in a proprietary test mode where VFB is connected to the output of the error amplifier.
AS1324, IOUT = 100mA
0.585
0.6
0.615
V
ΔVFB
Reference Voltage
Line Regulation
VIN = 2.7V to 5.5V
0.1
1
%/V
IVFB
Feedback Current
TAMB = +25ºC
-30
30
nA
VOUT
Regulated Output
Voltage
AS1324-AD, IOUT = 100mA
2
2. Please see Feedback Resistor Selection on page 13 for resistor values.
VFB
V
AS1324-12, IOUT = 100mA
1.164
1.20
1.236
AS1324-15, IOUT = 100mA
1.455
1.50
1.545
AS1324-18, IOUT = 100mA
1.746
1.80
1.854
ΔVOUT
Output Voltage
Line Regulation
VIN = 2.7 to 5.5V
0.1
1
%/V
VLOADREG
Output Voltage
Load Regulation
IOUT = 0 to 100mA
0.02
%/mA
DC-DC Switches
IPK
Peak Inductor Current
VIN = 3V, VFB = 0.5V or VOUT = 90%,
TAMB = 25ºC
0.5
0.75
1
A
RPFET
P-Channel FET RDS(ON)
ILSW = 100mA
0.4
Ω
RNFET
N-Channel FET RDS(ON)
ILSW = -100mA
0.35
Ω
ILSW
SW Leakage
VEN = 0V, VSW = 0V or 5V
±0.01
±1
µA
Control Inputs
VEN
EN Threshold
0.3
1
1.5
V
IEN
EN Leakage Current
±0.01
±1
µA
Oscillator
fOSC
Oscillator Frequency
VFB = 0.6V or VOUT = 100%
1.2
1.5
1.8
MHz
VFB = 0V or VOUT = 0V, TAMB = 25ºC
115
kHz



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