Data Sheet

6

Rev. 1.02, 2010-02-23

IFX91041

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

Output Voltage adjust range

V

CC

0.60

16

V

IFX91041EJV

4.2.3

Buck inductor

L

BU

18

56

µH

–

4.2.4

Buck capacitor

C

BU1

33

120

µF

–

4.2.5

Buck capacitor ESR

ESR

BU1

–0.3

Ω

1) See section ““Application Information” on Page 12” for loop compensation requirements.

4.2.6

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

––

12

K/W

–

4.3.2

Junction to ambient1)

R

thJA

–52

–

K/W

2)

2) According to Jedec JESD52-1,-5,-7 at natural convection on 2s2p FR4 PCB for 1W power dissipation. PCB

under the exposed pad.