TS2937

500mA Ultra Low Dropout Voltage Regulator

2/10

Version: A07

Parameter

Conditions

Min

Typ

Max

Unit

Output Voltage

0.980|Vo|

1.020|Vo|

V

Output Voltage

0.970|Vo|

12 / 5.0 /

3.3 / 2.5 /

1.8

1.030|Vo|

V

Input Supply Voltage

--

--

26

V

Output Voltage Temperature Coefficient

--

50

150

ppm/

Line Regulation

--

0.05

0.5

%

Load Regulation

--

0.2

1.0

%

Dropout Voltage (Note 4)

--

--

--

100

400

600

300

500

700

mV

Quiescent Current (Note 5)

--

--

--

200

12

25

--

--

--

uA

mA

mA

Short Circuit Current (Note 6)

--

--

1.3

A

Output Noise,

--

--

--

500

350

120

--

--

--

uVrms

Thermal Performance

Condition

Package type

Typ

Unit

TO-220

60

TO-263

80

TO-252

150

Thermal Resistance

Junction to Ambient

SOT-223

170

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 60V must be limited duration (<100mS) and duty cycle (<1%).

Note 3: 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.

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 500mA at the

maximum specified temperature.