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RP105 Series
Low Voltage 400mA Voltage Regulator (LDO Regulator) with dual input pin

Product Specifications

The RP105 Series are CMOS-based LDO regulators featuring 400mA output with dual input pin. The input voltage can correspond from 0.9V by the inputting voltage into VBIAS. The UVLO function will lock out the internal circuit, if the input voltage is less than the UVLO voltage. Due to a built-in Nch. transistor with low on-resistance of 0.4Ω (at VSET=0.8V), RP105 provides a low dropout voltage.

RP105 also has an excellent line transient response. In addition to SOT-23-5 package, 1.2mm square DFN(PLP)1212-6 package and DFN1212-5 package are also available.

FEATURES

Input Voltage Range (VBIAS) 2.4 V to 5.25 V (VSET < 0.8 V) (Absolute maximum rating: 6.0 V)
VSET + 1.6 V to 5.25 V (VSET ≥ 0.8 V)
Input Voltage Range (VIN) RP105xxxxB/D: 0.9 V to VBIAS (VSET < 0.8 V), VSET + 0.1 V to VBIAS (VSET ≥ 0.8 V)
RP105xxxxE/F: 0.9 V to VBIAS
Supply Current Typ. 28 µA
Standby Current Typ. 0.1 µA
Ripple Rejection Typ. 80 dB (f = 1 kHz, VIN Ripple)
Typ. 50 dB (f = 1 kHz, VBIAS Ripple)
Output Voltage Range 0.6 V to 1.5 V (0.1 V step)
Output Voltage Accuracy Typ. ±15 mV (Ta = 25°C)
Temperature-Drift Coefficient of Output Voltage Typ. ±50 ppm/°C
Dropout Voltage DFN1212-5: Typ. 105 mV
(IOUT = 400 mA, VSET = 1.5 V, VBIAS = 3.6 V)
Line Regulation Typ. 0.02%/V
Packages DFN(PLP)1212-6, SOT-23-5, DFN1212-5
Built-in Fold Back Protection Circuit Typ. 120 mA (Current at short mode)
Ceramic capacitors are recommended CBIAS = CIN = 1.0 µF or more, COUT = 2.2 µF or more

APPLICATION INFORMATION

TYPICAL CHARACTERISTICS

RP105x151x Dropout Voltage vs. Output Current

PIN DESCRIPTION

DFN(PLP)1212-61.2 mm × 1.2 mm

DFN(PLP)1212-6

1 VBIAS
2 GND
3 CE
4 VIN
5 NC
6 VOUT
DFN1212-51.2 mm × 1.2 mm

DFN1212-5

1 VOUT
2 VBIAS
3 CE
4 VIN
5 GND
SOT-23-52.9 mm × 2.8 mm

SOT-23-5

1 VIN
2 GND
3 CE
4 VBIAS
5 VOUT

RP105 Series for Consumer

APPLICATIONS

  • Power source for portable communication equipment
  • Power source for electrical appliances such as cameras, VCRs and camcorders
  • Power source for battery-powered equipment

SELECTION GUIDE

The output voltage, the UVLO circuit, the auto-discharge function, and the package for the device are user-selectable options.

Product Name   Package Quantity per Reel
RP105Kxx1#-TR Consumter DFN(PLP)1212-6 5,000
RP105Lxx1#-TR Consumter DFN1212-5 5,000
RP105Nxx1#-TR-FE Consumter SOT-23-5 3,000
  • xx … The set output voltage (VSET) can be designated within the range of 0.6 V (06) to 1.5 V (15) in 0.1 V step.
    If the set output voltage (VSET) is designated in 0.01 V step, indicate the product name as follows.
    1.05 V: RP105x10x#5-TR
  • # … CE pin polarity and auto-discharge function of the product can be defined as follows.
    B: "H" active, auto-discharge function is not included, UVLO is included
    D: "H" active, auto-discharge function is included, UVLO is included
    E: "H" active, auto-discharge function is not included, UVLO is not included
    F: "H" active, auto-discharge function is included, UVLO is not included

* Auto-discharge function quickly lowers the output voltage to 0 V, when the chip enable signal is switched from the active mode to the standby mode, by releasing the electrical charge accumulated in the external capacitor.

DOCUMENT/CONTACT

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Technical Support

Package *1 Marking Reliability *2
DFN(PLP)1212-6 RP105K RP105K
DFN1212-5 RP105L RP105L
SOT-23-5 RP105N RP105N (-FE)

*1: The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and land pattern (foot pattern).
*2: Reliability file includes a reliability test report and a reflow profile.

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