TLE4267 Infineon Technologies, TLE4267 Datasheet - Page 2

• Manufacturer Part Number: TLE4267
• Description: IC REGULATOR LDO 5V TO220-7
• Manufacturer: Infineon Technologies

Specifications of TLE4267

• Regulator Topology: Positive Fixed
• Voltage - Output: 5V
• Voltage - Input: 5.5 ~ 40 V
• Voltage - Dropout (typical): 0.3V @ 400mA
• Number Of Regulators: 1
• Current - Output: 400mA (Max)
• Current - Limit (min): 500mA
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Through Hole
• Package / Case: TO-220-7 (Bent and Staggered Leads)
• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 40 V
• Output Voltage: 5 V
• Output Type: Fixed
• Dropout Voltage (max): 0.6 V at 400 mA
• Output Current: 400 mA
• Load Regulation: 50 mV
• Voltage Regulation Accuracy: 2 %
• Maximum Operating Temperature: + 150 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: SP000012167; SP000306738; TLE4267NK

Application
The IC regulates an input voltage
voltage of
4.5 V). The reset delay can be set with an external capacitor. The device has two logic
inputs. A voltage of
Depending on the voltage on pin E6 the IC may be hold in active-state even if
to low level. This makes it simple to implement a self-holding circuit without external
components. When the device is turned off, the output voltage drops to 0 V and current
consumption tends towards 0 A.
Design Notes for External Components
The input capacitor
circuit consisting of lead inductance and input capacitance can be damped by a resistor
of approx. 1
regulating circuit. Stability is guaranteed at values of
the operating temperature range.
Circuit Description
The control amplifier compares a reference voltage, which is kept highly accurate by
resistance adjustment, to a voltage that is proportional to the output voltage and drives
the base of the series transistor via a buffer. Saturation control as a function of the load
current prevents any over-saturating of the power element.
The reset output RO is in high-state if the voltage on the delay capacitor
equal
greater than the reset threshold
discharge of the delay capacitor
reset output RO is set to low-level (see
range by dimensioning the capacitance of the external capacitor.
Data Sheet
V
UD
. The delay capacitance
V
Q
= 5.0 V. A reset signal is generated for an output voltage of
in series with
V
C
E2
I
is necessary for compensation of line influences. The resonant
> 4.0 V given to the E2-pin (e.g. by ignition) turns the device on.
C
I
. The output capacitor is necessary for the stability of the
C
V
V
D
C
I
RT
in the range of 5.5 V <
sets in and as soon as
D
. If the output voltage gets lower than
is charged with the current
Figure
2
6). The reset delay can be set within wide
22 F and an ESR of
V
V
I
CD
< 40 V to a nominal output
gets lower than
I
D
Rev. 2.5, 2007-03-20
for output voltages
C
V
D
Q
is greater or
TLE 4267
<
V
3
V
RT
V
E2
V
RT
within
a fast
LD
goes
(typ.
the