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RP115 Series

Low Voltage 500mA/1A LDO Regulator

  • Consumer
  • Industrial
  • Automotive
  • PLP
  • AEC-Q100
  • RoHS

The RP115 Series are CMOS-based LDO regulators featuring 500mA/1A output.

In the RP115L (DFN1216-8, DFN2020-8B), there are two preset inrush current limit and guaranteed maximum output current values and alternative by the logic of LCON pin.

When LCON pin is set "H", the maximum IOUT=1A and IRUSH=500mA, while LCON pin is set "L", the maximum IOUT=500mA and IRUSH=300mA. (As for the RP115H (SOT-89-5), the preset inrush current limit and output current value is fixed at the maximum IOUT=1A and IRUSH=500mA.)

By this function, for example, in case the RP115L is turned on with setting LCON at "L" (the preset IRUSH=300mA) and after the start up sequence, by making LCON pin at "H" (IOUT=1A), then inrush current can be suppressed less only at start-up.

RP115 supports low voltage, featuring input voltage from 1.4V and output voltage from 0.7V. Due to a built-in Nch. transistor with low on-resistance, RP115 provides a low dropout voltage. Ripple rejection is 75dB and noise is low.

In addition to a fold-back protection circuit built into conventional regulators, RP115 contains a thermal shutdown circuit, an inrush current limit circuit, a constant slope circuit, and a reverse protection circuit.

In addition to SOT-89-5, RP115 is offered in a 1.6mm×1.2mm square DFN1216-8 package for consumer and industrial applications and a DFN2020-8B package for automotive application.

Specs & Datasheets

  Consumer Industrial Automotive
Input Voltage Range 1.4 V to 5.25 V (6.0 V)
Operating Temperature Range -40°C to 85°C (125°C) -40°C to 105°C (150°C) -40°C to 105°C (150°C)
Supply Current Typ. 110 µA
Standby Current Typ. 0.5 µA
Output Voltage Range 0.7 V to 4.3 V (0.1 V step) 0.9 V, 1.0 V, 1.2 V, 1.5 V, 1.75 V, 1.8 V, 2.5 V, 2.8 V, 3.0 V, 3.3 V, 3.4 V 0.9 V, 1.0 V, 1.1 V, 1.2 V, 1.25 V, 1.5 V, 1.75 V, 1.8 V, 2.5 V, 2.8 V, 3.0 V, 3.3 V, 3.4 V, 3.9 V
Output Voltage Accuracy ±1.0% (Ta = 25℃, VSET ≥ 1.75V)
Output Voltage Temperature Coefficient Typ. ±30 ppm/°C (VSET ≥ 1.75 V) Typ. ±30 ppm/°C (VSET ≥ 1.75 V)
Typ. ±100 ppm/°C (VSET < 1.75 V)
Typ. ±30 ppm/°C (VSET ≥ 1.75 V)
Typ. ±100 ppm/°C (VSET < 1.75 V)
Dropout Voltage Typ. 0.195 V (RP115L: IOUT = 1.0 A, VSET = 1.2 V)
Typ. 0.235 V (RP115H: IOUT = 1.0 A, VSET = 1.2 V)
Ripple Rejection Typ. 80 dB (f = 1 kHz, VSET ≤ 1.8 V)
Typ. 75 dB (f = 1 kHz, VSET > 1.8 V)
Package DFN1216-8, SOT-89-5 DFN1216-8, SOT-89-5 DFN2020-8B, SOT-89-5

Download Datasheet

Protections / Functions

Functional Description

TSD Reverse Current Limit ISC Inrush Constant Slope ECO mode Auto Discharge External Driver

Technical Documents

Typical Application

Typical Application

CIN, COUT: 1.0 µF or more

RP115H181x Dropout Voltage vs. Output Current

RP115H181x Dropout Voltage vs. Output Current

RP115L181x Dropout Voltage vs. Output Current

RP115L181x Dropout Voltage vs. Output Current

Quality & Packages

Product Name Compatibility Package Marking Reliability
  • gradeConsumerC
  • plpP
DFN1216-8 RP115L RP115L
  • gradeConsumerC
  • plpP
SOT-89-5 RP115H RP115H-FE
  • gradeIndustrialI
  • plpP
DFN1216-8 RP115L RP115L-Y
  • gradeIndustrialI
  • plpP
SOT-89-5 RP115H RP115H-YE
  • gradeAutomotiveA
  • aecQ1001
  • plpP
DFN2020-8B RP115Lxx2 RP115L-A
  • gradeAutomotiveA
  • aecQ1001
  • plpP
SOT-89-5 RP115H RP115H-AE

Refer to the datasheets for the details on the product.
The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
Please contact us or our distributors for unpublished reliability information.

Sample / Buy

Functional Description

TSD Thermal Shutdown Function
Reverse Current Protection Reverse Current Protection
Current Limit Overcurrent Protection
ISC Short Current Protection
Inrush Current Limit Inrush Current Protection
Constant Slope Constant Slope Function
ECO mode ECO Function
Auto Discharge Auto Discharge Function
External Driver External Output Driver Transistor

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