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PDF TLE4252G Data sheet ( Hoja de datos )
| Número de pieza | TLE4252G | |
| Descripción | Low Dropout Tracking Regulator | |
| Fabricantes | Infineon Technologies AG | |
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Low Dropout Tracking Regulator
TLE 4252 G
Features
• Output tracking tolerance to reference ≤ ±0.2%
• Output voltage adjust down to 1.5 V
• 250 mA output current capability
• Enable function
• Very low current consumption in OFF mode
• Wide operation range: up to 40 V
• Wide temperature range: -40 °C ≤ Tj ≤ 150 °C
• Output protected against short circuit
to GND and Battery
• Overtemperature protection
• Reverse polarity proof
• Green Product (RoHS compliant)
• AEC Qualified
Short Functional Description
The TLE 4252 is a monolithic integrated low-dropout voltage tracking regulator in a
PG-TO263-5 package. It is designed to supply off-board systems, e.g. sensors in engine
management systems under the severe conditions of automotive applications.
Therefore, the device is equipped with additional protection functions against reverse
polarity and short circuit to GND and battery.
With supply voltages up to 40 V, the output voltage follows a reference voltage with high
accuracy. The reference voltage can be applied directly to the adjust input or by an
external resistor divider. The minimum reference voltage at the component’s pin is 1.5 V.
The output is able to drive loads up to 250 mA following e.g. the 5 V output of a main
voltage regulator as reference.
The TLE 4252 tracking regulator can be switched into stand-by mode to reduce the
current consumption to less than 2µA. This feature makes the IC suitable for low power
battery applications.
This product is also available in a PG-TO252-5 package. See datasheet “TLE 4252 D”.
Type
TLE 4252 G
Data Sheet
Package
PG-TO263-5
1
Marking
TLE4252G
Rev. 1.0, 2008-05-09
1 page  
TLE 4252 G
Table 3
Functional Range
Parameter
Symbol
Limit Values Unit Remarks
Min. Typ. Max.
In- and Output Voltage
Supply voltage
VI
Enable input voltage VEN
Adjust input voltage VADJ
Error amplifier
CMR
common mode range
Output Capacitor
3.5 –
0–
1.5 –
1.5 –
40 V
40 V
40 V
VI - V
0.5
VI > VADJ + Vdr
–
–
VQ ≤ VADJ + ∆VQ with
VFB = VQ
Output Capacitor’s CQ
10 – – µF –
Requirement
ESR(CQ) – – 5 Ω 1)
Temperature
Junction temperature Tj
-40 –
150 °C –
1) Relevant ESR value at f = 10 kHz. Not subject to production test; specified by design.
Note: Within the functional range the IC operates as described in the circuit description.
The electrical characteristics are specified within the conditions given in the
related electrical characteristics table.
.
Table 4
Thermal Resistance PG-TO263-5 1)
Parameter
Symbol
Limit Values Unit Remarks
Junction to case
Junction to ambient
RthJC
RthJA
Min.
–
–
–
Typ.
4.7
24
35
Max.
6 K/W –
– K/W 2s2p PCB 2)
– K/W PCB heat sink area
600 mm2 3)
– 44 – K/W PCB heat sink area
300 mm2 3)
1) Not subject to production test; specified by design.
2) Specified RthJA value is according to Jedec JESD51-2,-5,-7 at natural convection on FR4 2s2p board; The
Product (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 tab contacted the first inner copper
layer.
3) Specified RthJA value is according to Jedec JESD 51-3 at natural convection on FR4 1s0p board; The Product
(Chip+Package) was simulated on a 76.2 x 114.3 x 1.5 mm3 board with 1 copper layer (1 x 70 µm Cu).
Data Sheet
5 Rev. 1.0, 2008-05-09
5 Page 
TLE 4252 G
Revision History
Version Date
Changes
Rev. 1.0 2008-05-09 Final datasheet TLE 4252 G.
Corrected swaped numbers at Table 4 "Thermal Resistance
PG-TO263-5" on Page 5 (value for 300mm2 vs. 600mm2).
Rev. 0.9 2008-04-22 Initial Preliminary Datasheet of TLE 4252 G (PG-TO263-5).
Data Sheet
11 Rev. 1.0, 2008-05-09
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet TLE4252G.PDF ] | |
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