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TLE4275GV33ATMA1

P1-P3P4-P6P7-P9P10-P12
Datasheet 4 Rev. 1.2, 2015-12-18
TLE 4275 V33
Electrical Characteristics
2.2 Functional Range
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.
2.3 Thermal Resistance
Pos. Parameter Symbol Limit Values Unit Conditions / Remarks
Min. Max.
2.2.1 Input Voltage
V
I
4.4 42 V V
Q
= V
I
- V
dr
1)
1) For details on max. output current vs. input voltage see Table 1: Electrical Characteristics Voltage Regulator
2.2.2 Junction Temperature T
j
-40 150 °C–
2.2.3 Output Capacitor
C
Q
22 – µF –
2)
2) The minimum output capacitance requirement is applicable for a worst case capacitance tolerance of 30%
2.2.4 ESR
CQ
–3Ω –
Pos. Parameter Symbol Typ.
Value
Unit Conditions
Package P-TO252-5:
2.3.1 Junction – Ambient
PG-TO252-5-11
R
th,j-a
144 K/W Footprint only
1)
1) EIA/JESD 52_2, FR4, 80 × 80 × 1.5 mm; 35μ Cu, 5μ Sn; horizontal position; zero airflow.
Not subject to production test; specified by design.
2.3.2 78 K/W 300 mm
2
PCB heatsink area
1)
2.3.3 55 K/W 600 mm
2
PCB heatsink area
1)
2.3.4 Junction – Case PG-TO252-5-11 R
th,j-c
1.8 K/W
Package P-TO263-5:
2.3.1 Junction – Ambient
PG-TO263-5-1
R
th,j-a
79 K/W Footprint only
1)
2.3.2 53 K/W 300 mm
2
PCB heatsink area
1)
2.3.3 39 K/W 600 mm
2
PCB heatsink area
1)
2.3.4 Junction – Case PG-TO263-5-1 R
th,j-c
1.3 K/W
TLE 4275 V33
Block Description and Electrical Characteristics
Datasheet 5 Rev. 1.2, 2015-12-18
3 Block Description and Electrical Characteristics
3.1 Voltage Regulator
The output voltage V
Q
is controlled by comparing a portion of it to an internal reference and driving a PNP pass
transistor accordingly. The control loop stability depends on the output capacitor
C
Q
, the load current, the chip
temperature and the poles/zeros introduced by the integrated circuit. To ensure stable operation, the output
capacitor’s capacitance and its equivalent series resistor ESR requirements given in the table “Operating Range”
have to be maintained. For details see also the typical performance graph “Output Capacitor Series Resistor
ESR
CQ
vs. Output Current I
Q
”. Also, the output capacitor shall be sized to buffer load transients.
An input capacitor
C
I
is strongly recommended to buffer line influences. Connect the capacitors close to the IC
terminals.
Protection circuitry prevent the IC as well as the application from destruction in case of catastrophic events. These
safeguards contain output current limitation, reverse polarity protection as well as thermal shutdown in case of
overtemperature.
In order to avoid excessive power dissipation that could never be handled by the pass element and the package,
the maximum output current is decreased at input voltages above
V
I
=22V.
The thermal shutdown circuit prevents the IC from immediate destruction under fault conditions (e.g. output
continuously short-circuited) by switching off the power stage. After the chip has cooled down, the regulator
restarts. This leads to an oscillatory behaviour of the output voltage until the fault is removed. However, junction
temperatures above 150 °C are outside the maximum ratings and therefore significantly reduce the IC lifetime.
The TLE 4275 V33 allows a negative supply voltage. However, several small currents are flowing into the IC
increasing its junction temperature. This has to be considered for the thermal design, respecting that the thermal
protection circuit is not operating during reverse polarity conditions For details see typical performance graphs.
Figure 3 Block Diagram Voltage Regulator Circuit
Bandgap
Reference
GND
QI
BlockDiagram_VoltageRegulator.vsd
Saturation Control
Current Limitation
Temperature
Shutdown
C
Q
ESR
C
}
LOAD
Supply
C
I
Regulated Output Voltage
Datasheet 6 Rev. 1.2, 2015-12-18
TLE 4275 V33
Block Description and Electrical Characteristics
3.2 Current Consumption
Table 1 Electrical Characteristics Voltage Regulator
V
I
= 13.5 V; -40 °C ≤ T
j
≤ 150 °C (unless otherwise specified)
Pos. Parameter Symbol Limit Values Unit Remark / Test Condition
Min. Typ. Max.
3.1.1 Output Voltage
V
Q
3.23 3.3 3.37 V 1 mA ≤ I
Q
≤ 400 mA;
5 V ≤
V
I
≤ 28 V
3.1.1 3.23 3.3 3.37 V 1 mA ≤
I
Q
≤ 300 mA;
4.4 V ≤
V
I
≤ 28 V
3.1.2 3.23 3.3 3.37 V 1 mA ≤
I
Q
≤ 200 mA;
4.4 V ≤
V
I
≤ 40 V
3.1.3 Load Regulation
steady-state
d
V
Q,load
-30 -15 – mV I
Q
= 5 mA to 400 mA;
V
I
= 6 V
3.1.4 Line Regulation
steady-state
d
V
Q,line
–515mVV
I
= 8 V to 32 V;
I
Q
= 5 mA
3.1.5 Power Supply Ripple
Rejection
PSRR
–60–dBf
ripple
= 100 Hz;
V
ripple
= 0.5 Vpp
1)
1) Parameter not subject to production test; specified by design.
3.1.6 Output Current Limitation I
Q,max
401 – 1000 mA V
Q
= 3.0 V
3.1.7 Overtemperature Shutdown
Threshold
T
j,sd
151 – 200 °C T
j
increasing
1)
3.1.8 Overtemperature Shutdown
Threshold Hysteresis
T
j,hy
–25–K
Table 2 Electrical Characteristics Current Consumption
V
I
= 13.5 V; -40 °C ≤ T
j
≤ 150 °C (unless otherwise specified)
Pos. Parameter Symbol Limit Values Unit Conditions
Min. Typ. Max.
3.2.1 Current Consumption
I
q
= I
Q
- I
I
I
q
– 180 220 µA I
Q
= 1 mA;
T
j
= 25 °C
3.2.2 – 180 240 µA
I
Q
= 1 mA;
T
j
≤ 85 °C
3.2.3 – 8 12 mA
I
Q
= 250 mA
3.2.4 – 20 30 mA
I
Q
= 400 mA
P1-P3P4-P6P7-P9P10-P12

TLE4275GV33ATMA1

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Infineon Technologies
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LDO Voltage Regulators LINEAR VLTGE REG
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