R1191x SERIES

300mA LDO REGULATOR with the Reverse Current Protection

NO.EA-229-111026

1

OUTLINE

R1191x Series are a low supply current voltage regulator with high output voltage accuracy. The maximum

operating voltage is 16V. These ICs can switch to the fast mode and the low power mode by the low power / fast

mode changer pin (ECO pin) without changing the output voltage value.

Each of these ICs consists of a voltage reference unit, an error amplifier, a resistor-net for voltage setting, a

short current limit circuit, a thermal shutdown circuit and a chip enable circuit.

Moreover, the R1191x Series has the reverse current protection function, which protects the reverse current

back-up circuit.

Since the packages for these ICs are SOT-89-5, SOT-23-5 and DFN1616-6, therefore high density mounting

of the ICs on boards is possible.

FEATURES

• Supply Current ..................................................... Typ. 50μA (Fast Mode),

Typ. 6.0

μA (Low Power Mode)

• Standby Mode ...................................................... Typ. 0.3μA

• Reverse Current................................................... Max. 0.1μA

• Output Current ..................................................... Min. 300mA

• Input Voltage Range ............................................ 3.5V to 16.0V

• Output Voltage Range.......................................... 2.0V to 15.0V (0.1V steps)

• Output Voltage Accuracy...................................... ±1.5% (Fast Mode)

±2.5% (Low Power Mode)

• Temperature-Drift Coefficient of Output Voltage .. Typ. ±80ppm/°C

• Line Regulation .................................................... Typ. 0.02%/V (Fast Mode)

• Packages ............................................................ DFN1616-6, SOT-23-5, SOT-89-5

• Built-in fold-back protection circuit ....................... Typ. 50mA (Current at short mode)

• Built-in Thermal Shutdown Circuit........................ Shutdown Temperature at 150°C

APPLICATIONS

• Power source for digital home appliances

• Power source for audio visual equipment