RP131 Datasheet, PDF (1/36 Pages) RICOH electronics devices division – Output Current Min. 1A

RP131x SERIES
LOW ON RESISTANCE / LOW VOLTAGE 1A LDO
NO.EA-174-160426
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, a resistor net for setting output voltage,
a chip enable circuit, current limit circuits for over-current and short, and a thermal-shutdown circuit.
A standby mode with ultra low supply current can be realized with the chip enable function.
The packages for these ICs are DFN1616-6B and DFN(PLP)1820-6 which are suitable for high density mounting
of the ICs on boards. SOT-89-5, HSOP-6J and TO-252-5-P2 with high power dissipation are also available.
FEATURES
• Output Current ............................................................ Min. 1A
• Supply Current ............................................................. Typ. 65μA
• Standby Current ......................................................... Typ. 0.15μA
• Input Voltage Range ................................................... 1.6V to 6.5V
• Output Voltage Range .................................................. 0.8V to 5.5V (0.1V steps)
(For other voltages, please refer to MARK INFORMATIONS.)
• 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 ............................................................... DFN1616-6B, DFN(PLP)1820-6, SOT-89-5, HSOP-6J,
TO-252-5-P2
• Built-in Inrush current limit circuit ............................... Typ. 500mA
• 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)
APPLICATIONS
• Power source for battery-powered equipment.
• Power source for portable communication equipment.
• Power source for electrical appliances such as cameras, VCRs and camcorders.
• Power source for Notebook PC.
• Power source for home appliances.
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