TLE4274(2004) 데이터 시트보기 (PDF) - Infineon Technologies

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TLE4274
(Rev.:2004)

Voltage Regulator

Infineon Technologies 

TLE 4274 / 3.3V;2.5V

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 includes a number of internal circuits for protection against:

• Overload

• Overtemperature

• Reverse polarity

P-SOT223-4-1

Ι1

GND 2 4 GND

Q3

AEP02282

P-TO252-3-1 (D-PAK)

GND

1

3

Ι

Q

AEP02561

Figure 1 Pin Configuration (top view)

Table 1

Pin No.

1

2, 4

3

Pin Definitions and Functions

Symbol Function

I

Input; block to ground directly at the IC with a ceramic capacitor.

GND

Ground; P-TO252-3-1: internally connected to heatsink

Q

Output; block to ground with capacitor CQ ≥ 10 µF, ESR ≤ 2.5 Ω

Data Sheet

2

Rev. 2.1, 2004-01-01

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