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RP131x Series

1A LOW VOLTAGE REGULATOR

Outline

The RP131x Series are voltage-regulators with a built-in low ON-resistance transistor and output current is 1A capability. These ICs are capable of the low input voltage (Min.1.6V) and also the minimum output voltage can be set from 0.8V. (The output voltage is fixed in the IC.)

Each of these ICs consists of a voltage reference unit, an error amplifier, resister net for setting output voltage, a current limit circuits for over-current and thermal-shutdown circuits.

A standby mode with ultra low supply current can be realized with the chip enable function.

Since the packages for these ICs are DFN(PLP)1820-6, SOT-89-5 and HSOP-6J with high power dissipation,high density mounting of the ICs on boards is possible.

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Features

Output Current

Min.1A

Supply Current

Typ. 65µA

Standby Current

Typ. 0.15μA

Input Voltage Range

1.6V to 6.5V

Output Voltage

Stepwise setting with a step of 0.1V in the range of
0.8V to 5.0V

High Output Voltage Accuracy

±1.0%

Dropout Voltage

Typ. 0.5V (VOUT=2.8V, IOUT=1A)

Ripple Rejection

Typ.70dB (f = 1kHz, VOUT = 2.8V)

Output Voltage Accuracy

±1.0%

Temperature-Drift Coefficient of Output Voltage

Typ. ±100ppm/°C

Line Regulation

Typ. 0.05%/V

Load Regulation

Typ. 20mV at IOUT=300mA, Typ. 80mV at IOUT=1A

Packages

HSOP-6J, SOT-89-5, DFN(PLP)1820-6

Built-in Inrush current limit circuit

Typ. 500 mA

Built-in Fold-Back Protection Circuit

Typ. 250mA (Current at short mode)

Built-in Thermal Shutdown Circuit

Thermal Shutdown Temperature ; Typ. 165°C
Released Temperature ; Typ. 135°C

Built-in Auto Discharge Function

D version

Ceramic capacitors are recommended to be used with this IC

2.2μF or more (VOUT <= 3.6V)
4.7μF or more (VOUT > 3.6V)

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Applications

	Power source for battery-powered equipment
	Power source for electrical applications such as cameras VCRs and camcorders.
	Power source for portable communication equipment such as Lap top computers

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Documents Download

Data Sheet (PDF)	Package Info. (PDF)	Mark Info. (PDF)	Quality Assurance Data (PDF)
RP131x Series EA-174-080405(730KB)	HSOP-6J	RP131S	Reliability
	SOT-89-5	RP131H	Reliability
	DFN(PLP)1820-6	RP131K	Reliability