Siemens TLE4266GSV10 Datasheet
TLE 4266
5-V Low-Drop Voltage Regulator
Features
● Output voltage tolerance ≤ ± 2%
● Very low current consumption
● Low-drop voltage
● Overtemperature protection
● Reverse polarity proof
● Wide temperature range
● Suitable for use in automotive electronics
● Inhibit
Type Ordering Code Package
P-SOT223-4-2
TLE 4266
Bipolar IC
TLE 4266 G Q67006-A9152 P-SOT223-4-2 (SMD)
TLE 4266 GSV10 Q67006-A9355 P-SOT223-4-2 (SMD)
▼
▼ New type
Functional Description
TLE 4266 G is a 5-V low-drop voltage regulator in a P-SOT2 23-4-2 SMD pa ck age . The
IC regulates an input voltage
in the range of 5.5 V < Vi < 45 V to V
i
= 5 V / 10 V.
Qrated
V
The maximum output current is m ore than 120 mA. The IC can be switched off via the
inhibit input, which causes the current consumption to drop below 10 µA. The IC is
shortcircuit-proof and incorporates temperature protection that disables the IC an
overtemperature.
Dimensioning Information on External Components
C
The input capacitor
approx. 1 Ω in series with
be clamped. The output capacitor
circuit. Stability is guaranteed at values
is necessary for compensating line influences. Using a resistor of
i
C
, the oscillating of input inductivity and input capacitance can
i
C
is necessary for the stability of the regulating
Q
C
≥ 10 µF and an ESR ≤ 10 Ω within the
Q
operating temperature range.
Semiconductor Group 1 1998-11-01
Pin Configuration
(top view)
TLE 4266
GND
4
Pin Definitions and Functions
Pin Symbol Function
1
V
I
Input voltage; block to ground directly at the IC with a ceramic
capacitor.
123
V
Ι
Inh
V
Q
AEP01734
2InhInhibit; low-active input.
3
V
Q
Output voltage; block to ground with a ≥ 10 µF capacitor.
4GNDGround
Semiconductor Group 2 1998-11-01
TLE 4266
Circuit Description
The control amplifier compares a reference voltage, which is kept highly accurate by
resistance adjustmen t, to a voltage that is proportiona l to the output volt age and drives
the base of the series transistor via a buffer. Saturation control as a function of the load
current prevents any oversaturation of the power element. The IC also incorporates a
number of internal circuits for protection against:
● Overload
● Overtemperature
● Reverse polarity
1
Adjustment
Temperature
Sensor
Bandgap
Reference
Saturation
Control and
Protection
Circuit
Control
Amplifier Buffer
Inhibit GND
AEB01725
3
OutputInput
42
Block Diagram
Semiconductor Group 3 1998-11-01
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