TS39154CP4RO datasheet(2/7 Pages) TSC

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TS39154

1.5A Ultra Low LDO with Enable

2/7

Version: D08

Electrical Characteristics

VIN = VOUT + 1V, VIN =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

IL=10mA

0.980|Vo|

1.020|Vo|

Reference Output Voltage

(Note 7)

10mA ≤ IL ≤ 1.5A,

2.5V ≤ VIN ≤ 8V

0.970|Vo|

1.24

(VREF)

1.030|Vo|

Line Regulation

IL=10mA, Vo+1V ≤ VIN ≤ 16V

0.05

0.5

Load Regulation

VIN =Vout+1V, 10mA≤IL≤1.5A

0.2

1.0

Output Voltage Temp. Coefficient

100

ppm/

Adjust Pin Bias Current

120

Adjust Pin Bias Current Temp.

Coefficient (Note 8)

0.1

nA/

Dropout Voltage (Note 5)

Δ VOUT = -1%

IL=100mA

IL=750mA

IL=1.5A

100

275

400

250

350

700

Quiescent Current (Note 6)

VIN= VOUT +1V

IL=100mA

IL=750mA

IL=1.5A

Current Limited

VOUT=0, VIN =VOUT+1V

1.8

2.0

Low (OFF)

0.8

Input Logic Voltage

High (ON)

2.25

VEN =2.25V

Enable Pin Input Current

VEN =0.8V

Thermal Performance

Condition

Symbol

Typ

Unit

Thermal Resistance Junction to Case

RθJC

oC/W

Thermal Resistance Junction to Ambient

RθJA

100

oC/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, TJ, the junction

to ambient thermal resistance, ӨJA, 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 ӨJA can be reduced by using a heat sink, Pd(max) = (TJ(max) – Ta) / ӨJA.

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, IGND = IIN - IOUT for fix output voltage, , IGND = IIN - IOUT +10mA for fix

reference output voltage in full load regulation.

Note 7: VREF ≤ VOUT ≤ (VIN – 1V), 2.25V ≤ VIN ≤ 16V, 10mA ≤ IL ≤ 1.0A.

Note 8: Output voltage temperature coefficient is ΔVOUT (worse cast) / (TJ(max) – TJ(MIN)) where is TJ(max) +125

oC and

TJ(MIN) is 0

oC.

Note 9: For adjustable device and fixed device with VOUT > 2.25V.

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