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| FAN2564_11 Datasheet, PDF (5/13 Pages) Fairchild Semiconductor – 300mA Low VIN LDO for Digital Applications | |||
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Electrical Characteristics
VIN(3)=VOUT + 0.5V or 1.8V (whichever is higher). TA=-40°C to +85°C, test circuit is Figure 1, typical values are at
TA=25°C, ILOAD=1 mA, VEN=VIN, unless otherwise noted.
Symbol
Parameter
Conditions
Min. Typ. Max. Units
Power Supplies
VIN Input Voltage Range
IGND
ISD
V(EN)
Ground Current
Shutdown Supply Current
Enable High-level Input Voltage
Enable Low-level Input Voltage
ILOAD=0mA
ILOAD=300mA
VIN=3.6V, EN=GND
EN=GND
I(EN)
Enable Input Leakage Current
EN=VIN=3.6V
Regulation
IOUT Minimum Output Current
IOUT Maximum Output Current
VDO
Dropout Voltage(4)
âVOUT Output Voltage Accuracy
ILOAD=300mA
1.8V, 2.5V
1.2V, 1.3V, 1.5V
1.2V, 1.3V, 1.5V,
1.8V, 2.5V
Over Full VIN,
IOUT, at Room
Temperature
Over Full VIN,
IOUT, Tempera-
ture Range
âVOUTline Line Regulation
VIN=VOUT(NOM) + 0.5V to 3.6V,
IOUT=1mA
âVOUTload
ISCP
ISU
Load Regulation
Short-circuit Current Limit
Start-up Peak Current
IOUT=1mA to 300mA
EN Transition, LOW to HIGH
1.65
3.60 V
45 75
ïA
140 200 ïAï
0.01 1.00 ïA
0.95
V
0.4
0
2.5 4.0 ïAï
0
mA
300
mA
100 160 mV
-1.0
1.0
-1.5
1.5
%
-2.5
2.5
0.03 0.50 %/V
10 60 µV/mA
500 900 mA
500 900 mA
tON
Turn-on Time(5)
EN Transition, LOW to HIGH
100
µs
Startup Overshoot(5)
IOUT=1mA
0
%
TSD Thermal Shutdown
Rising Temperature
Hysteresis
+160
°C
+30
°C
PSRR
en
Power Supply Rejection Ratio(5) f=1kHz
Output Noise Voltage(5)
10Hz to 100kHz
60
dB
100
µVRMS
Timing Characteristics
Peak
âVOUTline
Peak
âVOUTload
Line Transient Response(5)
Load Transient Response(5)
600mV, tRISE=tFALL=30µs
1mA-300mA-1mA, tRISE=tFALL=1µs
±6
mV
±50
mV
Note:
3. VIN voltage tolerance +/- 5%.
4. Dropout voltage is the minimum input to output differential voltage needed to maintain VOUT to within 5% of no-
minal value. This parameter is only specified for output voltages greater than or equal to 1.8V.
5. This electrical specification is guaranteed by design.
© 2007 Fairchild Semiconductor Corporation
FAN2564 ⢠Rev. 1.0.2
5
www.fairchildsemi.com
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