RP132 Datasheet, PDF (1/47 Pages) RICOH electronics devices division – Output Current Min. 1A

RP132x SERIES
Low on Resistance / Low Voltage 1A LDO
NO.EA-265-160426
OUTLINE
The RP132x Series are voltage-regulators with a built-in low ON-resistance transistor and output current is 1A
capability. These ICs have two versions: fixed output voltage type and externally adjustable output voltage type.
The minimum output voltage can be set from 1.4V. Otherwise, the load regulation of RP132x has much improved
when compared with conventional regulators. It's Typ.5mV at IOUT=0.1mA to 1A.
Each of these ICs consists of a voltage reference unit, an error amplifier, a resistor net for setting output voltage,
current limit circuits to prevent over-current and a thermal-shutdown circuit. A standby mode with ultra low supply
current can be realized with the chip enable function. Additionally, E/F Version with delay pin for inrush current
limit time setting are also available.
The packages for these ICs are DFN(PLP)1820-6, SOT-89-5, HSOP-6J and TO-252-5-P2. DFN(PLP)1820-6 is
suitable for high density mounting of the ICs on boards. SOT-89-5, HSOP-6J and TO-252-5-P2 are supporting
high wattage.
FEATURES
• Output Current ............................................................ Min. 1A
• Supply Current ............................................................. Typ. 65μA
• Standby Current ......................................................... Typ. 0.15μA
• Input Voltage Range ................................................... 1.4V to 6.5V
• Output Voltage Range .................................................. Fixed Output Voltage Type: 0.8V to 5.5V (0.1V steps)
Adjustable Output Voltage Type: 0.8V to 5.5V
(For other voltages, please refer to MARK INFORMATIONS.)
• Dropout Voltage............................................................ Typ. 0.52V (VOUT=2.8V, IOUT=1A)
• Ripple Rejection ........................................................... Typ. 70dB (f=1kHz, VOUT=2.8V)
• Output Voltage Accuracy .............................................. ±1.0%
• Output Voltage Temperature-Drift Coefficient .............. Typ. ±60ppm/°C
• Line Regulation ............................................................ Typ. 0.052%/V
• Load Regulation ......................................................... Typ. 3mV at IOUT=300mA, Typ. 5mV at IOUT=1A
• Packages .................................................................... DFN(PLP)1820-6, SOT-89-5, HSOP-6J,TO-252-5-P2
• Inrush Current Limit Circuit ......................................... Typ. 500mA
B/D version: Inrush current limit time is 500μs.
E/F version: Inrush current limit time is adjustable.
• Fold-Back Protection Circuit ....................................... Typ. 250mA (Current at short mode)
• Thermal Shutdown Circuit .......................................... Thermal Shutdown Temperature: Typ. 165°C
Released Temperature: Typ. 95°C
• Auto Discharge Function ............................................ D, F 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 home appliances and Notebook PC.
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