Data Sheet

8

Rev. 1.0, 2013-06-19

TLF50251EL

General Product Characteristics

4.2

Functional Range

Note: Within the functional range the IC operates as described in the circuit description. The electrical

characteristics are specified within the conditions given in the related electrical characteristics table.

4.3

Thermal Resistance

Pos.

Parameter

Symbol

Limit Values

Unit

Conditions

Min.

Max.

4.2.1

Supply voltage

V

S

4.75

45

V

–

4.2.2

Buck inductor

L

BU

3.3

22

µH

–

4.2.3

Buck capacitor

C

BU1

10

50

µF

–

4.2.4

Buck capacitor ESR

ESR

BU1

0.015

0.100

Ω

1) See section ““Application Information” on Page 26” for loop compensation requirements and refer to Application Note

for dimensioning the output filter.

4.2.5

Junction temperature

T

j

-40

150

°C–

Pos.

Parameter

Symbol

Limit Values

Unit

Conditions

Min.

Typ.

Max.

4.3.1

1) Not subject to production test, specified by design.

R

thJC

–10

–

K/W

–

4.3.2

Junction to ambient1) 2)

2) Specified

R

area at natural convection on FR4 board.

R

thJA

–47

–

K/W

2s2p

4.3.3

R

thJA

–

54

–

K/W

4.3.4

R

thJA

–

64

–

K/W