TSC TS39151, TS39152 Technical data

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TS39151/52

1.5A Ultra Low Dropout Positive Voltage Regulator

Low Dropout Voltage 0.4V (typ.)

Enable Input Control

Adjustable Output

Error Flag Detection

General Description

The TS39151/52 series are 1.5A ultra low dropout linear voltage regulators that provide low voltage, high current output

from an extremely small package. These regulator offers extremely low dropout (typically 400mV at 1.5A) and very low

ground current (typically 12mA at 1.5A).

The TS39151/52 series are fully protected against over current faults, reversed input polarity, reversed lead insertion,

over temperature operation, positive and negative transient voltage spikes, logic level enable control and error flag which

signals whenever the output falls out of regulation.

On the TS39151/52, the enable pin may be tied to Vin if it is not required for enable control. This series are offered in

5-pin TO-220, TO-263 package.

Features

 Dropout voltage typically 0.4V @Io=1.5A

 Output current up to 1.5A

 Low ground current

 Output voltage trimmed before assembly

 Extremely fast transient response

 Reversed leakage protection

 Reverse battery protection

 Error flag signals output out of regulation

 Internal current limit

 Thermal shutdown protection

Applications

 Battery power equipment

 LDO linear regulator for PC add-in cards

 PowerPC

power supplies

 Multimedia and PC processor supplies

Absolute Maximum Rating (Note 1)

Ordering Information

Part No. Operating Temp.

(Junction)

TS39151CZ5xx TO-220-5L TS39151CM5xx TO-263-5L

TS39152CZ5 TO-220-5L

TS39152CM5

Note: Where xx denotes voltage option, available are

5.0V, 3.3V, 2.5V and 1.8V.

-40 ~ +125 oC

Package

TO-263-5L

 High efficiency linear power supplies

 High efficiency post regulator for switching supply

 Low-voltage microcontrollers and digital logic

 SMPS post regulator

Supply Voltage Vin -20V ~ +20 V

Enable Voltage Ven +20 V

Storage Temperature Range T

Lead Soldering Temperature (260 oC) 5 S

ESD (Note 3)

-65 ~ +150

STG

TS39151/52 1-1 2004/09 rev. A

Operating Rating (Note 2)

Operation Input Voltage Vin (operate) +2.25 ~ +16 V

Operation Enable Voltage Ven (operate) +2.25 ~ +16 V

Power Dissipation (Note 4) PD Internally Limited W

Operating Junction Temperature Range TJ -40 ~ +125

Electrical Characteristics

Vin = Vout + 1V, Venable= 2.4V, Tj = 25

C, unless otherwise specified.

Parameter Conditions Min Typ Max Unit

Output Voltage IL=10mA 0.990|Vo| 1.010|Vo|

Output Voltage 10mA ≤ IL ≤ 1.5A,

0.980|Vo|

Vo+1V ≤ Vin ≤ 8V

Line Regulation IL=10mA, Vo+1V ≤Vin≤ 16V -- 0.05 0.5 %

Load Regulation Vin=Vout+1V,

10mA≤I

≤1.5A

-- 0.2 1.0 %

Output Voltage Temp. Coefficient -- 40 100 ppm/ oC

Dropout Voltage (Note 5) ∆Vout= -1% IL=100mA

=750mA

=1.5A

Quiescent Current (Note 6) Vin=Vout+1V IL=750mA

=1.5A

Current Limited Vout=0, Vin=Vout+1V -- 2.0 2.5 A

Minimum Load Current -- 7 10 mA

5.0/3.3

2.5/1.8

100

275

400

1.020|Vo|

200

600

Reference (TS39152)

Reference Voltage 0.980|Vo| 1.020|Vo|

Reference Voltage (Note 7) 0.970|Vo|

Adjust Pin Bias Current -- 40 120 nA

Reference Voltage Temp. Coefficient (Note 8) -- 20 -- ppm/ oC

Adjust Pin Bias Current Temp.

-- 0.1 -- nA/ oC

Coefficient

1.24

1.030|Vo| V

Flag Output (TS39151)

Output Leakage Current VOH=16V -- -- 2 uA

Output Low Voltage (Note 9) Vin=0.9 * Vout, IOL=250uA -- -- 400 mV

Upper Threshold Voltage % of Vout -- -- 99 %

Lower Threshold Voltage % of Vout 93 -- -- %

Hysteresis -- 1 -- %

Enable Input (TS39151 / 2)

Low (OFF) -- -- 0.8 Input Logic Voltage

High (ON) 2.25 -- --

Ven=2.25V -- -- 75 Enable Pin Input Current

Ven=0.8V -- -- 4

TS39151/52 2-2 2004/09 rev. A

Thermal Performance

Condition Package type Typ Unit

TO-220, TO-220-5L 2.0 Thermal Resistance

Junction to Case

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, θja, 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 θja can be reduced by using a heatsink, Pd

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, Iin = Ignd + Iout.

Note 7: Vref ≤ Vout ≤ (Vin – 1V), 2.25V ≤ Vin ≤ 16V, 10mA ≤ I

Note 8: Output voltage temperature coefficient is ∆Vout (worse cast) / (Tj

is 0 oC.

(min)

Note 9: For adjustable device and fiexed device with Vout > 2.25V.

TO-263, TO-263-5L 2.0

(max)

= (Tj

≤ 1.5A.

– Ta) / Θja.

(max)

- Tj

(min)

) where is Tj

(max)

C/W

+125 oC and

Block Diagram

* Flag network is fixed output versions only (TS39151)

** Adjustable output version only (TS39152)

TS39151/52 3-3 2004/09 rev. A

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