L99VR01STR datasheet(7/47 Pages) STMICROELECTRONICS

部件名	L99VR01STR

功能描述	Automotive low dropout linear voltage regulator with configurable output voltage having 200 mA current capability

PDF	47 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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2.2

Thermal data

2.2.1

Thermal resistance

Table 3. Operation junction temperature

Item

Symbol

Parameter

Value

Unit

PowerSSO-12

SO-8

A.001

Rthj-case

Junction to case thermal

resistance

8.5

°C/W

A.057

Rthj-lead

Junction to lead thermal

resistance (1)

54.5

°C/W

A.002

Rthj-amb

Junction to ambient thermal

resistance

27.4

°C/W

1. Measured on Vs

Note:

the values quoted are for PCB 77 mm x 86 mm x 1.6 mm, FR4, four layers; Cu thickness 0.070 mm (outer

layers) . Cu thickness 0.035 mm (inner layers), Thermal vias separation 1.2 mm, Thermal via diameter 0.3 mm

+/- 0.08 mm, Cu thickness on vias 0.025 mm.

2.2.2

Thermal protection

Table 4. Temperature threshold

Item

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

A.003

Tprot_s(1)

Thermal protection temperature

L99VR01S

150

180

°C

A.004

Tprot_j(1)

Thermal protection temperature

L99VR01J

175

200

°C

A.005

Tprot_hyst

Thermal protection hysteresis

°C

A.006

Operating

junction

temperature

SO-8

-40

150

°C

Power-SSO-12

-40

175

A.007

Tstg

Storage temperature

Tstg

150

°C

1. Thermal protection is guaranteed by design and characterization.

L99VR01

Thermal data

DS13649 - Rev 3

page 7/47

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