Datasheet

L4995 Electrical specifications
Doc ID 13103 Rev 14 9/35
2.2 Thermal data
For details, please refer to Section 4.1: PowerSSO-12 thermal data and Section 4.2:
PowerSSO-24 thermal data.
mm
2.3 Electrical characteristics
Values specified in this section are for V
s
= 5.6V to 31V, T
j
= -40 °C to +150 °C unless
otherwise stated.
Table 4. Thermal data
(1)
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.
Symbol Parameter Value Unit
R
thj-case
Thermal resistance Junction to Case:
PowerSSO-12
PowerSSO-24
5
4
°K/W
°K/W
R
thj-amb
Thermal resistance Junction to Ambient:
PowerSSO-12
PowerSSO-24
52
38
°K/W
°K/W
Table 5. General
Pin Symbol Parameter Test condition Min. Typ. Max. Unit
V
o
V
o_ref
Output voltage
V
S
= 5.6 to 31V
I
o
= 0 to 500mA
4.95.005.1 V
V
o
I
short
Short circuit current V
S
= 13.5V
(1)
550 800 1050 mA
V
o
I
lim
(2)
Output current limitation V
S
= 13.5V
(1)
600 900 1250 mA
V
S
, V
o
V
line
Line regulation voltage
V
S
= 5.6 to 31V
I
o
= 0 to 500mA
25 mV
V
o
V
load
Load regulation voltage I
o
= 0 to 500mA 25 mV
V
S
, V
o
V
dp
(3)
Drop voltage I
o
= 400mA 270 500 mV
V
S
, V
o
SVR Ripple rejection f
r
= 100 Hz
(4)
55 dB
V
S
, V
o
I
qs
Current consumption with
regulator disabled
V
S
= 13.5V,
E
n
= low
310 µA
V
S
, V
o
I
qn_1
Current consumption
with regulator enabled
V
S
= 13.5V,
I
o
< 1mA,
90 160 µA
V
S
, V
o
I
qn_50
Current consumption
with regulator enabled
V
S
= 13.5V,
I
o
= 50mA,
290 400 µA