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L4995RJ Datasheet(PDF) 9 Page - STMicroelectronics

Part # L4995RJ
Description  5V, 500mA low drop voltage regulator
Download  35 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4995RJ Datasheet(HTML) 9 Page - STMicroelectronics

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L4995
Electrical specifications
Doc ID 13103 Rev 13
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 Vs = 5.6V to 31V, Tj = -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
Rthj-case
Thermal resistance Junction to Case:
PowerSSO-12
PowerSSO-24
5
4
°K/W
°K/W
Rthj-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
Vo
Vo_ref
Output voltage
VS = 5.6 to 31V
Io = 0 to 500mA
4.95.005.1
V
Vo
Ishort
Short circuit current
VS = 13.5V
(1)
550
800
1050
mA
Vo
Ilim
(2)
Output current limitation
VS = 13.5V
(1)
600
900
1250
mA
VS, Vo
Vline
Line regulation voltage
VS = 5.6 to 31V
Io = 0 to 500mA
25
mV
Vo
Vload
Load regulation voltage
Io = 0 to 500mA
25
mV
VS, Vo
Vdp
(3)
Drop voltage
Io = 400mA
270
500
mV
VS, Vo
SVR
Ripple rejection
fr = 100 Hz
(4)
55
dB
VS, Vo
Iqs
Current consumption with
regulator disabled
VS = 13.5V,
En = low
310
µA
VS, Vo
Iqn_1
Current consumption
with regulator enabled
VS = 13.5V,
Io < 1mA,
90
160
µA
VS, Vo
Iqn_50
Current consumption
with regulator enabled
VS = 13.5V,
Io = 50mA,
290
400
µA


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