TS4274_13 Datasheet, PDF (2/6 Pages) Taiwan Semiconductor Company, Ltd – 5V/400mA Fixed Voltage Ultra Low Dropout Voltage Regulator

TS4274
5V/400mA Fixed Voltage
Ultra Low Dropout Voltage Regulator
Electrical Characteristics ( V_IN=V_OUT+1V, I_L=5mA, C_O=10uF, T_A=25^oC, unless otherwise noted)
Parameter
Conditions
Min
Typ
Max
Unit
Output Voltage
2.40
2.5
2.60
5mA ≤ I_L ≤ 500mA,
3.17
3.3
3.43
V
Vo+1V ≤ V_IN ≤ 26V
4.80
5.0
5.20
Input Supply Voltage
Output Voltage Temperature Coefficient
--
--
26
V
--
50
150
ppm/ ^oC
Line Regulation
Vo+1V ≤ V_IN ≤ 26V
--
0.05
0.5
%
Load Regulation
5mA ≤ I_L ≤ 400mA
--
0.2
2.0
%
I_L=100mA
--
100
200
Dropout Voltage (Note 4)
I_L=250mA
--
300
400
mV
I_L=400mA
--
500
600
I_L=100uA
--
200
300
uA
Quiescent Current (Note 5)
I_L=250mA
--
10
15
mA
I_L=400mA
--
25
35
mA
Short Circuit Current (Note 6)
V_OUT=0
--
600
900
mA
Output Noise,
10Hz to 100KHz, I_L=10mA
C_L=2.2uF
C_L=3.3uF
C_L=33uF
--
500
--
--
350
--
uVrms
--
120
--
Power Supply Ripple Rejection
F=100Hz, Vr=0.5Vss
--
60
--
dB
Note 1: Absolute Maximum Rating is limits beyond which damage to the device may occur. For guaranteed
specifications and test conditions see the electrical characteristics.
Note 2: Maximum positive supply voltage of 35V must be limited duration (<100mS) and duty cycle (<1%).
Note 3: The maximum allowable power dissipation is a function of the maximum junction temperature, T_J, the
junction to ambient thermal resistance, θ_JA, and the ambient temperature, Ta. Exceeding the maximum
allowable power dissipation will cause excessive die temperature, and the regulator will go into thermal
shutdown. The effective value of θ_JA can be reduced by using a heatsink.
Note 3: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its
nominal value measured at 1V differential.
Note 4: Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of
the ground pin current and output load current.
Note 5: Output current will decrease with increasing temperature, but it will be not dropped below 400mA at the
maximum specified temperature.
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Version: B13