TLE4276-V50 ,5 V Low-Drop Voltage RegulatorFeatures• 5 V, 8.5 V, 10 V or variable output voltage• Output voltage tolerance £– 4%• 400 mA curre ..
TLE4276V85 ,Low-Drop Voltage RegulatorFeatures• 5 V, 8.5 V, 10 V or variable output voltage Output voltage tolerance
TLE4276-V50
5 V Low-Drop Voltage Regulator
Infineon
technologies
Low-Drop Voltage Regulator
Features
. 5 V, 8.5 V, 10 V or variable output voltage
- Output voltage tolerance s i 4%
. 400 mA current capability
. Low-drop voltage
- Inhibit input
. Very low current consumption
. Short-circuit-proof
- Reverse polarity proof
. Suitable for use in automotive electronics
TLE 4276
Ordering Code
Package
TLE 4276 V50
Q67000-A9262
P-T0220-5-3
TLE 4276 V85
Q67000-A9263
P-T0220-5-3
TLE 4276 V10
Q67000-A9264
P-T0220-5-3
TLE 4276 S V50
Q67000-A9267
P-T0220-5-43
TLE 4276 S V85
Q67000-A9269
P-T0220-5-43
TLE 4276 S V10
Q67000-A9271
P-TO220-5-43
TLE 4276 V
Q67000-A9265
P-TO220-5-3
TLE 4276 SV
Q67000-A9273
P-TO220-5-43
TLE 4276 G V50
Q67006-A9266
P-TO220-5-122
TLE 4276 G V85
Q67006-A9268
P-TO220-5-122
TLE 4276 G V10
Q67006-A9270
P-T0220-5-122
TLE 4276 GV
Q67006-A9272
P-TO220-5-122
P-TO 220-5-122
(TO-220 AB/5, Option E3122)
TLE 4276 D V50
Q67006-A9358
P-T0252-5-1
TLE 4276 DV
Q67006-A9361
P-TO252-5-1
SMD = Surface Mounted Device
V New type
Data Sheet Version 2
P-T0252-5-1
tl1f,i,yt,ty, TLE 4276
ac no ogles/
Functional Description
The TLE 4276 is a low-drop voltage regulator in a T0220 package. The IC regulates an
input voltage up to 40 V to VQrated = 5.0 V (V50), 8.5 V (V85), 10 V (V10) and adjustable
voltage (V). The maximum output current is 400 mA. The IC can be switched off via the
inhibit input, which causes the current consumption to drop below 10 pp. The IC is short-
circuit-proof and incorporates temperature protection that disables it at over-temperor
Dimensioning Information on External Components
The input capacitor CI is necessary for compensating line influences. Using a resistor of
approx. 1 Q in series with cl, the oscillating of input inductivity and input capacitance can
be damped. The output capacitor Ca is necessary for the stability of the regulation circuit.
Stability is guaranteed at values Cl, 2 22 " and an ESR of s 3 Q within the operating
temperature range.
Circuit Description
The control amplifier compares a reference voltage 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 oversaturation of the power element. The
IC also incorporates a number of internal circuits for protection against:
q Overload
. Overtemperature
. Reverse polarity
Data Sheet Version 2 2 2000-02-14
