FAN1539MPX データシートの表示（PDF） - Fairchild Semiconductor
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FAN1539MPX Datasheet PDF : 15 Pages
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Electrical Characteristics—FAN1540D18X
Unless otherwise specified, VIN = 3.135V to 3.465V, Tj = 25°C, IMAX = 1.3A. Boldface limits apply over operating
junction temperature range of 0°C ≤ TJ ≤ 125°C.
Test Conditions
Test Limits
Parameter
Output Voltage
Line Regulation
Load Regulation
Dropout Voltage
(Note 6)
Symbol
VOUT
REG(LINE)
REG(LOAD)
VD
VIN
3.15V ≤ VIN ≤ 3.465V
3.135V ≤ VIN ≤ 3.465V
3.3V
IOUT
5mA ≤ IOUT ≤ IMAX
5mA ≤ IOUT ≤ IMAX
5mA ≤ IOUT ≤ IMAX
IOUT = IMAX
Min. Typ.
1.755 1.800
3
20
0.9
Max.
1.845
10
40
1.2
Units
V
mV
mV
V
Current Limit
Min. Output
Current for
regulation
(∆VOUT ≤ 3%)
Temperature
Stability
IS
IOMIN
TS
3.3V
IOUT = 5mA
2.5
A
0
mA
0.3
%
RMS Output
VN
Noise (Note 7)
IOUT = IMAX
0.003
%VOUT
Ripple Rejection
RA
3.3V
IOUT = 500mA
40
dB
Ratio (Note 8)
Transient
Response
Change of VOUT
with step load
change (Note 9)
∆--∆---V-I--O-O---U-U--T--T-
3.3V
1mA to IMAX
tr ≥ 1µS
IMAX to 1mA
tf ≥ 1µS
2.0
10
(undershoot %
or overshoot
of VOUT)
Transient
Response
Change of VOUT
with application of
VIN (Note 9)
-∆--∆--V--V--O---I-UN----T-
0 to 1.8V Step Input
tr ≥ 1µS
10% to 90%
1mA ≤ IOUT ≤ IMAX
3.0
10
%
(undershoot
or overshoot
of VOUT)
Transient
Response
Short circuit
Removal
Response
(Note 9)
-∆--∆--V--V--O--I--UN----T-
@IOUT =
short
3.3V
IOUT = short
to
IOUT = 10mA
3.0
10
%
(overshoot
or under-
shoot of VO)
Quiescent Current
Quiescent Current
Thermal Shutdown
Thermal Hysteresis
IGND
IGND
TjSD
THYST
3.3V
3.3V
IOUT = 0mA
2mA ≤ IOUT ≤ IMAX
1.0
2.0
mA
1.0
2.0
mA
160
°C
10
°C
Notes:
6 Dropout voltage is defined as the input to output differential voltage at which the output voltage drops 1% below the
nominal value measured at VIN = 3.3V.
7. Measured within 10Hz to 10kHz bandwidth.
8. Measured at DC, specified at 120 Hz.
9. CIN = 22µF, COUT = 10µF. Both capacitors are low ESR X7R type.
6
FAN1539/FAN1540 Rev. 1.1.1
www.fairchildsemi.com
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