TLE4470G Infineon Technologies, TLE4470G Datasheet - Page 2

• Manufacturer Part Number: TLE4470G
• Description: IC REGULATOR LDO DUAL PDSO-20
• Manufacturer: Infineon Technologies

Specifications of TLE4470G

• Regulator Topology: Positive Fixed and Adjustable
• Voltage - Output: 5V, Adjustable
• Voltage - Input: Up to 45V
• Voltage - Dropout (typical): 0.3V @ 100mA, 0.3V @ 200mA
• Number Of Regulators: 2
• Current - Output: 100mA (Max), 250mA (Max)
• Current - Limit (min): 180mA, 350mA
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: DSO-20
• Number Of Outputs: 2
• Polarity: Positive
• Input Voltage Max: 45 V
• Output Voltage: 5 V
• Output Type: Fixed
• Dropout Voltage (max): 0.5 V at 100 mA
• Output Current: 180 mA, 350 mA
• Line Regulation: 20 mV
• Load Regulation: 50 mV
• Voltage Regulation Accuracy: 2 %
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: SP000011856; TLE4470G; TLE4470GNT; TLE4470GT; TLE4470GTR

use of an external voltage divider the main output voltage can be set to
TLE 4470 G type (PG-DSO-20 package).
which is proportional to the output voltage
series PNP transistor via a buffer.
The main output voltage
For the TLE 4470 GS (PG-DSO-14 package) the output voltage is fixed to 5 V.
To save energy e.g. in battery powered body electronic applications, the main regulator
can be switched off via the disable input, which causes the current consumption to drop
to 180 A typical.
Two additional features of the TLE 4470 are an early warning comparator (can be used
e.g. to monitor the supply voltage
time. The TLE 4470 G (PG-DSO-20 package) has in addition an adjustable reset
switching threshold. This feature is useful with microprocessors which guarantee a safe
operation down to voltages below the internally set reset threshold of 4.65 V typical.
Two functions are included in the reset generator, a power-on-reset and an under-
voltage reset. The power-on-reset feature is necessary for a defined start of the
microprocessor when switching on the application. The reset signal is kept low for a
certain delay time after the output voltage
threshold. An external delay capacitor sets this delay time. The under voltage reset
circuit supervises the stand-by output voltage. In case
threshold the reset output is set LOW after a short reaction time. The reset LOW signal
is generated down to an output voltage
Figure 1
Data Sheet
GND
GND
GND
DIS
RQ
SQ
D
Pin Configuration (top view)
PG-DSO-14
1
2
3
4
5
6
7
14
13
12
10
11
V
9
8
Q2
AEP02152
is tracked to the accuracy of the stand-by output.
SI
GND
GND
GND
Q2
Q1
V
I
) and reset generator with an adjustable reset delay
V
Q1
V
V
V
2
Q2
of 1 V.
Q1
Q1
. A control amplifier drives the base of the
RADJ
is compared to the voltage at pin ADJ2,
of the regulator has surpassed the reset
GND
GND
GND
GND
DIS
RQ
SQ
Q1
D
V
1
2
3
4
5
6
7
8
9
10
Q1
PG-DSO-20
falls below the reset switching
20
19
18
17
16
15
14
13
12
11
Rev. 1.2, 2008-03-20
AEP02151
V
Q2
SI
GND
GND
GND
GND
Q2
Q2
ADJ2
1
2
TLE 4470
5 V for the