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PDF TLE7272 Data sheet ( Hoja de datos )
| Número de pieza | TLE7272 | |
| Descripción | 5-V Low Drop Voltage Regulator | |
| Fabricantes | Infineon Technologies | |
| Logotipo |  |
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5-V Low Drop Voltage Regulator
TLE 7272
Features
ww•w.DOatuaStphueett4vUo.lntaetge 5 V ±2%
• Ultra low current consumption: typ. 25µA
• 300 mA current capability
• Inhibit input
• Reset
• Very low-drop voltage
• Short-circuit-proof
• Suitable for use in automotive electronics
P-TO252-5-1
Functional Description
The TLE 7272 is a monolithic integrated low-drop
voltage regulator for load currents up to 300 mA. An input
voltage up to 42 V is regulated to VQ,nom = 5.0 V with a
precision of ±2%. Due to its integrated reset circuitry
featuring power on timing and output voltage monitoring
the IC is well suited as µ-controller supply. The
P-TO263-5-1
sophisticated design allows to achieve stable operation
even with ceramic output capacitors down to 470 nF. The
device is designed for the harsh environment of automotive applications. Therefore it is
protected against overload, short circuit and overtemperature conditions. Of course the
TLE 7272 can be used also in all other applications, where a stabilized 5 V voltage is
required. Due to its ultra low stand-by current consumption of typ. 20 µA the TLE 7272
is dedicated for use in applications permanently connected to VBAT. In addition the IC can
be switched off via the Inhibit input reducing the current consumption to typ. 5 µA. An
integrated output sink current circuitry keeps the voltage at the Output pin Q below 5.5
V even when reverse currents are applied. Thus connected devices are protected from
overvoltage damage. For applications requiring extremely low noise levels the Infineon
voltage regulator family TLE 42XY and TLE 44XY is more suited than the TLE 7272. A
mV-range output noise on the TLE 7272 caused by the charge pump operation is
unavoidable due to the ultra low quiescent current concept.
Type
TLE 7272 D
TLE 7272 G
Ordering Code
Q67006-A9734
Q67006-A9735
Package
P-TO252-5
P-TO263-5
Data Sheet
1 Rev. 1.0a, 2005-02-08
1 page  
TLE 7272
Table 3
Operating Range
Parameter
Symbol Limit Values
Input voltage
Junction temperature
VI
Tj
Min.
5.5
-40
Max.
42
150
Unit Remarks
V–
°C –
Note: In the operating range, the functions given in the circuit description are fulfilled.
Table 4
Thermal Resistance
Parameter
Symbol Limit Values Unit Remarks
Min.
Max.
Junction case
Rthj-c
–
8
K/W –
Junction ambient
Rthj-a
–
80 K/W TO2521)
Junction ambient
Rthj-a
–
55 K/W TO2632)
1) Worst case, regarding peak temperature; zero airflow; mounted on a PCB FR4, 80 × 80 × 1.5 mm3, heat sink
area 300 mm2
2) Worst case, regarding peak temperature; zero airflow; mounted on a PCB FR4, 80 × 80 × 1.5 mm3, heat sink
area 300 mm2
Data Sheet
5 Rev. 1.0a, 2005-02-08
5 Page 
TLE 7272
Region of Stability
Output Voltage VQ Start-up behaviour
100
E
S
[
R
Ω
]C
Q
10
12 _ E S R -IQ .V S D
C Q = 1 0 n F ...1 0 µ F
Tj = 25 °C
V Q [V ]
5.0 5
IN H = O N
IQ = 5m A
1 4_ V I-
tim e _ s ta rtu p .v s d
1
S ta b le
R e g io n
0 .1
5.0 0
4.9 0
4.8 0
0 .01 0
50 100 150 200
IQ [m A ]
Power Supply Ripple Rejection PSRR
versus Frequency f
8 0 13_P S R R .V S D
PSRR
[d B ]
12345
t [m s]
Load Regulation dVQ versus Output
Current Change dIQ
0 1 8 a _ d V Q -d IQ _ V i6 V .v s d
∆[mVVQ] V I = 6 V
60
IQ = 30 m A
IQ = 0 .1 m A
-1 0
IQ = 100 m A
50
-1 5
40
V R IP P LE = 1 V
30
V IN = 1 3 .5 V
C Q = 1 0 µ F T a n ta lu m
Tj = 25 °C
10 100 1k
-2 0
-2 5
10k 100k
f [H z]
-30 0
T j = -40 °C
Tj = 25 °C
Tj = 150 °C
50 100 150 250
IQ [m A ]
Data Sheet
11 Rev. 1.0a, 2005-02-08
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet TLE7272.PDF ] | |
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