TS4264GCW50

5V/150mA Fixed-Voltage Ultra Low LDO

3/5

Version: B14

Application Information

In the TS4264GCW50 the output voltage is divided and compared to an internal reference of 2.5V typical. The

regulation loop controls the output to achieve an output voltage of 5V with an accuracy of

±3% at an input voltage

range of 5.5V~45V.

Circuit Description

The control amplifier compares a reference voltage, which is kept highly precise by resistance adjustment, to a

voltage that is proportional to the output voltage and drives the base of the series transistor via a buffer. Saturation

control, working as a function of load current, prevents any over-saturation of the power element. The IC is

additionally protected against overload, over temperature and reverse polarity

Typical Application Circuit

Dimensioning Information on External Components

Ω in series with

≥10µF and an ESR ≤ 4Ω

within the operating temperature range.

The application circuit shows additional electrolytic input capacitor of 470µF is added in order to buffer supply line

influences. This capacitor is recommended, if the device is sourced via long supply lines of several meters.

The TS4264GCW50 can supply up to 150mA. However for protection for high input voltage above 25V, the output

current is reduced (SOA protection).