TLE4250-2 Datasheet, PDF (3/17 Pages) Infineon Technologies AG – Low Dropout Voltage Tracking Regulator

TLE4250-2
2
Block Diagram
Block Diagram
Supply
C_I
I
ADJ/EN Internal
Supply
TLE 4250-2
Saturation Control Temp.
Current Limitation Protection
Voltage
divider
optional
Reference
ADJ/EN
B lockDiagram.vsd
GND
Figure 1 Block Diagram and Simplified Typical Application
3
Pin Configuration
3.1
Pin Assignment
Regulated
Q
Output Voltage
C_Q
off-board
load
ADJ/EN
1
GND
2
5
GND
I
3
4
Q
Pi no ut.v s d
Figure 2 Pin Configuration Package PG-SCT595-5
3.2
Pin Definitions and Functions
Pin Symbol Function
1 ADJ/EN Adjust / Enable.
Connect the reference to this pin. A low signal disables the IC; a high signal switches it on.
The reference voltage can be connected directly or by a voltage divider for lower output voltages.
For compensating line influences, a capacitor close to the IC pins is recommended.
2 GND
Ground Reference.
Internally connected to Pin 5. Connect to heatsink area.
3I
Input.
IC supply. For compensating line influences, a capacitor close to the IC pins is recommended.
4Q
Tracker Output.
Block to GND with a capacitor close to the IC terminals, respecting capacitance and ESR
requirements given in the table “Functional Range”.
5 GND
Ground Reference.
Internally connected to Pin 2. Connect to heatsink area.
Data sheet
3
Rev. 1.0, 2007-07-24