TS39154 Datasheet, PDF (2/7 Pages) Taiwan Semiconductor Company, Ltd – 1.5A Ultra Low LDO with Enable

TS39154
1.5A Ultra Low LDO with Enable
Electrical Characteristics
V_IN = V_OUT + 1V, V_IN =2.5V for fixed reference output voltage, Venable= 2.25V, Ta = 25^oC, unless otherwise specified.
Parameter
Conditions
Min
Typ
Max
Unit
Reference Output Voltage
Reference Output Voltage
(Note 7)
Line Regulation
I_L=10mA
10mA ≤ I_L ≤ 1.5A,
2.5V ≤ V_IN ≤ 8V
0.980|Vo|
1.020|Vo|
1.24
V
0.970|Vo| (VREF) 1.030|Vo|
I_L=10mA, Vo+1V ≤ V_IN ≤ 16V
--
0.05
0.5
%
Load Regulation
V_IN =Vout+1V, 10mA≤I_L≤1.5A
--
Output Voltage Temp. Coefficient
--
0.2
1.0
%
40
100
ppm/ ^oC
Adjust Pin Bias Current
--
40
120
nA
Adjust Pin Bias Current Temp.
Coefficient (Note 8)
--
0.1
--
nA/ ^oC
Dropout Voltage (Note 5)
Δ V_OUT = -1%
I_L=100mA
I_L=750mA
I_L=1.5A
--
100
250
--
275
350
mV
--
400
700
Quiescent Current (Note 6)
V_IN= V_OUT +1V
I_L=100mA
I_L=750mA
I_L=1.5A
--
5
18
--
7
20
mA
--
25
--
Current Limited
Input Logic Voltage
V_OUT=0, V_IN =V_OUT+1V
Low (OFF)
High (ON)
1.8
2.0
--
A
--
--
0.8
V
2.25
--
--
Enable Pin Input Current
V_EN =2.25V
V_EN =0.8V
--
--
75
uA
--
--
4
Thermal Performance
Condition
Symbol
Typ
Unit
Thermal Resistance Junction to Case
Rθ_JC
10
o_C/W
Thermal Resistance Junction to Ambient
Rθ_JA
100
o_C/W
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: The device is not guaranteed to operate outside its operating rating.
Note 3: Devices are ESD sensitive. Handling precautions recommended.
Note 4: The maximum allowable power dissipation is a function of the maximum junction temperature, T_J, the junction
to ambient thermal resistance, Ó¨_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 Ө_JA can be reduced by using a heat sink, Pd_(max) = (T_J(max) – Ta) / Ө_JA.
Note 5: Dropout voltage is defined as the input to output differential at which the output voltage drops -1% below its
nominal value measured at 1V differential.
Note 6: 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, I_GND = I_IN - I_OUT for fix output voltage, , I_GND = I_IN - I_OUT +10mA for fix
reference output voltage in full load regulation.
Note 7: V_REF ≤ V_OUT ≤ (V_IN – 1V), 2.25V ≤ V_IN ≤ 16V, 10mA ≤ I_L ≤ 1.0A.
Note 8: Output voltage temperature coefficient is ΔV_OUT (worse cast) / (T_J(max) – T_J(MIN)) where is T_J(max) +125^oC and
T_J(MIN) is 0^oC.
Note 9: For adjustable device and fixed device with V_OUT > 2.25V.
2/7
Version: D08