TLE4253

Pin Configuration

Data Sheet

4

Rev. 1.2, 2009-11-09

3

Pin Configuration

3.1

Pin Assignment

Figure 2

Pin Configuration and Block Diagram

3.2

Pin Definitions and Functions

Pin

Symbol

Function

1Q

Tracker Output.

Block to GND with a capacitor close to the IC terminals, respecting capacitance and ESR

requirements given in the table “Functional Range”.

2, 3, 6, 7

GND

Ground reference (version TLE4253GS only).

Interconnect the pins on PCB. Connect to heatsink area.

6GND

Ground (version TLE4253E only).

Connect to exposed pad.

2, 3, 7

n. c.

Not connected (version TLE4253E only).

Connect to GND externally.

4FB

Feedback input for tracker.

Non inverting input of the internal error amplifier to control the output voltage.

Connect this pin directly to the output pin in order to obtain lower or equal output voltages

with respect to the reference voltage and connect a voltage divider for higher output

voltages than the reference (see application information).

5EN/ADJ

Adjust / Enable.

Connect the reference to this pin. The active high signal of the reference turns on the

device, with active low the tracker is disabled. The reference voltage can be connected

directly or by a voltage divider for lower output voltages (see application information).

8I

Input.

IC supply. For compensating line influences, a capacitor close to the IC terminals is

recommended.

–EP

Exposed pad (version TLE4253E only).

Attach the exposed pad on package bottom to the heatsink area on circuit board.

Connect to GND.

GND

GND

GND

FB

EN/ADJ

I

Q

4

3

2

1

TLE4253GS

GND

5

6

7

8

n. c.

n. c.

GND

FB

EN/ADJ

I

Q

4

3

2

1

TLE4253E

n. c.

5

6

7

8