Data Sheet

6

Rev. 1.1, 2014-07-03

TLE42644

General Product Characteristics

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

characteristics are specified within the conditions given in the Electrical Characteristics table.

4.3

Thermal Resistance

Note: This thermal data was generated in accordance with JEDEC JESD51 standards. For more information, go

to www.jedec.org.

Output Capacitor’s

Requirements for Stability

ESR(C

––

2

Ω

1)

P_4.2.3

Junction temperature

T

j

-40

–

150

°C

–

P_4.2.4

1) relevant ESR value at

Table 3

Thermal Resistance

Parameter

Symbol

Values

Unit

Note / Test Condition

Number

Min.

Typ.

Max.

TLE42644G (PG-SOT223-4)

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

R

thJC

–

17

–

K/W

measured to heat slug

P_4.3.1

Junction to Ambient1)

R

thJA

–

54

–

K/W

2) Specified

R

(Chip+Package) was simulated on a 76.2 x 114.3 x 1.5 mm³ board with 2 inner copper layers (2 x 70µm Cu, 2 x 35µm Cu).

Where applicable a thermal via array under the exposed pad contacted the first inner copper layer.

P_4.3.2

Junction to Ambient1)

R

thJA

–

139

–

K/W

FR4 1s0p board, footprint

3) Specified

R

P_4.3.3

Junction to Ambient1)

R

thJA

–

73

–

K/W

FR4 1s0p board,

300 mm² heatsink area3)

P_4.3.4

Junction to Ambient1)

R

thJA

–

64

–

K/W

FR4 1s0p board,

600 mm² heatsink area3)

P_4.3.5

Table 2

Functional Range (cont’d)

Parameter

Symbol

Values

Unit

Note /

Test Condition

Number

Min.

Typ.

Max.