L4995 데이터 시트보기 (PDF) - STMicroelectronics

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L4995

5V, 500mA low drop voltage regulator

STMicroelectronics 

L4995

2.2

Electrical specifications

Thermal data

For details, please refer to Section 4.1: PowerSSO-12 thermal data and Section 4.2:

PowerSSO-24 thermal data.

mm

Table 4.

Thermal data(1)

Symbol

Parameter

Value

Unit

Rthj-case

Rthj-amb

Thermal resistance Junction to Case:

PowerSSO-12

PowerSSO-24

Thermal resistance Junction to Ambient:

PowerSSO-12

PowerSSO-24

5

°K/W

4

°K/W

52

°K/W

38

°K/W

1. The values quoted are for PCB 77mm x 86mm x 1.6mm, FR4, double layer; Copper thickness 0.070mm

Copper area 3cm2 Thermal Vias, Thermal vias separation 1.2 mm, Thermal via diameter 0.3 mm +/- 0.08

mm, Cu thickness on vias 0.025 mm.

2.3

Electrical characteristics

Values specified in this section are for Vs = 5.6V to 31V, Tj = -40 °C to +150 °C unless

otherwise stated.

Table 5. General

Pin Symbol

Parameter

Test condition Min. Typ. Max. Unit

Vo

Vo_ref Output voltage

Vo

Ishort Short circuit current

VS = 5.6 to 31V

Io = 0 to 500mA

VS = 13.5V (1)

4.9 5.00 5.1

V

550 800 1050 mA

Vo

VS, Vo

Vo

Ilim(2)

Vline

Vload

Output current limitation

Line regulation voltage

Load regulation voltage

VS = 13.5V (1)

VS = 5.6 to 31V

Io = 0 to 500mA

Io = 0 to 500mA

600 900 1250 mA

25 mV

25 mV

VS, Vo

Vdp(3) Drop voltage

Io = 400mA

270 500 mV

VS, Vo

VS, Vo

VS, Vo

VS, Vo

SVR

Iqs

Iqn_1

Iqn_50

Ripple rejection

fr = 100 Hz (4)

Current consumption with

regulator disabled

Current consumption

with regulator enabled

Current consumption

with regulator enabled

VS = 13.5V,

En = low

VS = 13.5V,

Io < 1mA,

VS = 13.5V,

Io = 50mA,

55

dB

3 10 µA

90 160 µA

290 400 µA

Doc ID 13103 Rev 13

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