TS1537A/B/C

2-5

2003/12 rev. B

Electrical Characteristics

Ta = 25

Parameter

Conditions

Min

Typ

Max

Unit

TS1537A/B-Vout 1

4.8V

≤ Vin ≤ 7V, Io=10mA

3.267

3.3

3.366

V

TS1537A/C-Vout 2/1

4V

≤ Vin ≤ 7V, Io=10mA

2.475

2.5

2.550

Output

Voltage

TS1537B/C-Vout 2

4V

≤ Vin ≤ 7V, Io=10mA

1.782

1.8

1.836

V

Input Supply Voltage

--

--

10

V

Line Regulation

Vout+1.5V

≤ Vin ≤ 7V, Io=10mA

--

0.015

0.2

%

Vout 1

Vin=5V, 10mA

≤ Io ≤ 1A

Load

Regulation

(note 1,2)

Vout 2

Vin=4V, 10mA

≤ Io ≤ 1A

--

0.5

1.0

%

Dropout Voltage

Io=1A, ∆Vout=0.1%Vout

--

1.3

1.4

V

Minimum Load Current

0

--

8

10

mA

Thermal Regulation

Ta=25

--

0.008

0.04

uA

Current Limit

Vin - Vout=3V

1.1

--

--

A

Temperature Stability

Io=10mA

--

0.5

--

%

Ripple Rejection

F = 120Hz, Io=1A Cout=25uF,

Vin=Vout + 3V

--

60

70

dB

Thermal Performance

Condition

Package type

Typ

Unit

Thermal Resistance

Junction to Ambient

TO-263-5L

85

Note 1: See thermal regulation specification for changes in output voltage due to heating effects. Line and load regulation

are measured at a constant junction temperature by low duty cycle pulse testing. Load regulation is measured at

the output lead = 1/18” from the package.

Note 2: Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipation is

determined by the input / output voltage difference and the output current. Guaranteed maximum power

dissipation will not be available over the full input / output voltage range.

Note 3: Quiescent current is defined as the minimum output current required to maintain the regulation.