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TLE4253

Low Dropout Voltage Tracking Regulator

Infineon Technologies 

TLE4253

Electrical Characteristics

Table 1 Electrical Characteristics Tracking Regulator

VI = 13.5 V; VADJ/EN ≥ 2.0 V; VFB = VQ; -40 °C ≤ Tj ≤ 150 °C;

all voltages with respect to ground (unless otherwise specified).

Pos. Parameter

Symbol

Limit Values

Unit Test Condition

5.1.7

5.1.8

Dropout Voltage

Vdr = VI - VQ

Output Current Limitation

Vdr

IQ,max

5.1.9 Reverse Current

IQ

5.1.10 Reverse Current

II

at Negative Input Voltage

Feedback Input FB:

Min. Typ. Max.

–

280 600 mV

IQ = 200 mA 2)

251 400 600 mA VQ = (VADJ - 0.1 V);

VADJ/EN = 5 V

-10 -5.5 –

mA VI = 0 V;

VQ = 16 V;

VADJ/EN = 5 V

-5

-2

–

mA VI = -16 V;

VQ = 0 V;

VADJ/EN = 5 V

5.1.11 Feedback Input Biasing

IFB

Current

0.1 0.5 µA VFB = 5 V

Overtemperature Protection:

5.1.12 Junction Temperature

Equilibrium

Tj,eq

151 –

200 °C Tj increasing due to power

dissipation generated by the

IC1)

1) Parameter not subject to production test; specified by design.

2) Measured when the output voltage VQ has dropped 100 mV from its nominal value.

Data Sheet

8

Rev. 1.2, 2009-11-09

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