AP7344 Datasheet, PDF (4/15 Pages) Diodes Incorporated – DUAL 300mA HIGH PSRR LOW NOISE LDO WITH ENABLE

AP7344
Electrical Characteristics (@TA = +25°C, VIN = VOUT+1V (VOUT > 1.5V), VIN = 2.5V (VOUT ≤ 1.5V), IOUT = 1mA, CIN = COUT = 1.0µF,
unless otherwise specified.)
Input Voltage
Parameter
Output Voltage Accuracy (Note 11)
Conditions
Min
Typ
Max
Unit
TA = -40°C to +85°C
1.7
–
5.25
V
TA = +25°C
VIN = (VOUT-Nom+1.0V) to
-1
–
1
5.25V,
%
IOUT = 1mA to 300mA ^{TA = -40°C to +85°C}
-1.5
–
1.5
Line Regulation (∆VOUT/∆VIN/VOUT)
VIN = (VOUT-Nom+1.0V) to 5.25V, IOUT = 1.0mA
–
0.02
0.1
%/V
Load Regulation (∆VOUT/∆IOUT)
Quiescent Current (Note 6)
VIN = VOUT-Nom+1.0V, IOUT = 1mA to 300mA
–
Set EN1 High, Set EN2 Low, or Set EN2 High,
–
Set EN1 Low, No Load
Set EN1/EN2 High, No Load
–
15
30
mV
50
70
µA
100
140
µA
ISTANDBY
Set EN1/EN2 Low, No Load
–
0.1
1.0
µA
Output Current
–
300
–
–
mA
Fold-back Short Current (Note 7)
PSRR (Note 8)
Output Noise Voltage (Notes 8 & 9)
VOUT short to ground
VIN = (VOUT+1V) VDC +
0.2Vp-pAC,
f = 1kHz
VOUT ≥1.8V, IOUT = 30mA
BW = 10Hz to 100kHz, IOUT = 30mA
–
55
–
mA
–
75
–
dB
–
60
–
µVrms
VOUT ≤ 1.2V
–
0.48
0.59
1.2V < VOUT ≤ 1.4V
–
0.39
0.50
1.4V < VOUT ≤ 1.7V
–
0.35
0.44
Dropout Voltage (Note 5)
IOUT = 300mA
1.7V < VOUT ≤ 2.1V
–
0.30
0.39
V
2.1V < VOUT ≤ 2.5V
–
0.26
0.34
2.5V < VOUT ≤ 3.0V
–
0.25
0.30
3.0V < VOUT ≤ 3.6V
–
0.22
0.29
Output Voltage Temperature Coefficient
IOUT = 30mA, TA = -40°C to +85°C
–
±30
–
ppm/°C
EN Input Low Voltage
–
0
–
0.5
V
EN Input High Voltage
–
1.3
–
5.25
V
EN Input Leakage
On Resistance of N-channel for Auto-
discharge (Note 10)
VEN = 0V, VIN = 5.0V or VEN = 5.0V, VIN = 0V
-1.0
–
1.0
µA
VIN = 4.0V, VEN = 0V _{D Version, Chanel 1 & 2}
–
50
–
Ω
(Disabled)
Notes:
5. Dropout voltage is the voltage difference between the input and the output at which the output voltage drops 2% below its nominal value.
6. Quiescent current is defined here is the difference in current between the input and the output.
7. Short circuit current is measured with VOUT pulled to GND.
8. This specification is guaranteed by design.
9. To make sure lowest environment noise minimizes the influence on noise measurement.
10. AP7344 has 2 options for output, built-in discharge and non-discharge
11. Potential multiple grades based on following output voltage accuracy.
AP7344
Document number: DS37368 Rev. 1 - 2
4 of 15
www.diodes.com
January 2015
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