RP122K LDO Regulators

Nisshinbo RP122K LDO Regulators provide low output noise, high ripple rejection, and fast performance characteristics achieved by low supply current. These regulators save space by adopting a 4-pin small package without a noise bypass capacitor. Nisshinbo RP122K LDO regulators provide a long duration of operation for battery-powered equipment by a low supply current of 9.5µA. The regulators operate at an input voltage range from 1.7V to 5.25V and at a temperature range from -40°C to +85°C.

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Description Datasheet Availability Pricing (SGD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Mounting Style
Package/Case
Output Voltage
Output Current
Number of Outputs
Polarity
Input Voltage - Min
Input Voltage - Max
PSRR / Ripple Rejection - Typ
Output Type
Minimum Operating Temperature
Maximum Operating Temperature
Dropout Voltage
Series
Packaging
Nisshinbo LDO Voltage Regulators 400 mA Low Noise and Low Supply Current LDO Regulator
Datasheet
6,651In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 10,000

SMD/SMT DFN-1010-4 2.8 V 400 mA 1 Output Positive 1.9 V 5.5 V 90 dB Fixed - 40 C + 85 C 170 mV RP122K Reel, Cut Tape, MouseReel
Nisshinbo LDO Voltage Regulators 400 mA Low Noise and Low Supply Current LDO Regulator
Datasheet
9,144In Stock
Min.: 1
Mult.: 1
Reel: 10,000

SMD/SMT DFN(PLP)1010-4 4.6 V 400 mA 1 Output Positive 1.9 V 5.5 V 90 dB Fixed - 40 C + 85 C 140 mV RP122K Reel, Cut Tape
Nisshinbo LDO Voltage Regulators 400 mA Low Noise and Low Supply Current LDO Regulator
Datasheet
9,793In Stock
Min.: 1
Mult.: 1
Reel: 10,000

SMD/SMT DFN-1010-4 1.2 V 400 mA 1 Output Positive 1.9 V 5.5 V 90 dB Fixed - 40 C + 85 C RP122K Reel, Cut Tape
Nisshinbo LDO Voltage Regulators 400 mA Low Noise and Low Supply Current LDO Regulator
Datasheet
9,785In Stock
Min.: 1
Mult.: 1
Reel: 10,000

SMD/SMT DFN(PLP)1010-4 3 V 400 mA 1 Output Positive 1.9 V 5.5 V 90 dB Fixed - 40 C + 85 C 170 mV RP122K Reel, Cut Tape
Nisshinbo LDO Voltage Regulators 400 mA Low Noise and Low Supply Current LDO Regulator
Datasheet
2,057In Stock
Min.: 1
Mult.: 1
Reel: 10,000

SMD/SMT DFN(PLP)1010-4 2.5 V 400 mA 1 Output Positive 1.9 V 5.5 V 90 dB Fixed - 40 C + 85 C 180 mV RP122K Reel, Cut Tape
Nisshinbo LDO Voltage Regulators 400 mA Low Noise and Low Supply Current LDO Regulator
Datasheet
1,414In Stock
10,000Expected 3/4/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 10,000

SMD/SMT DFN-1010-4 3.3 V 400 mA 1 Output Positive 1.9 V 5.5 V 90 dB Fixed - 40 C + 85 C 155 mV RP122K Reel, Cut Tape, MouseReel
Nisshinbo LDO Voltage Regulators 400 mA Low Noise and Low Supply Current LDO Regulator
Datasheet
49In Stock
Min.: 1
Mult.: 1
Reel: 10,000

SMD/SMT DFN(PLP)1010-4 1.2 V 400 mA 1 Output Positive 1.9 V 5.5 V 90 dB Fixed - 40 C + 85 C RP122K Reel, Cut Tape
Nisshinbo LDO Voltage Regulators 400 mA Low Noise and Low Supply Current LDO Regulator
Datasheet
44In Stock
Min.: 1
Mult.: 1
Reel: 10,000

SMD/SMT DFN(PLP)1010-4 2.5 V 400 mA 1 Output Positive 1.9 V 5.5 V 90 dB Fixed - 40 C + 85 C 180 mV RP122K Reel, Cut Tape
Nisshinbo LDO Voltage Regulators 400 mA Low Noise and Low Supply Current LDO Regulator
Datasheet
99In Stock
Min.: 1
Mult.: 1
Reel: 10,000

SMD/SMT DFN(PLP)1010-4 2.8 V 400 mA 1 Output Positive 1.9 V 5.5 V 90 dB Fixed - 40 C + 85 C 170 mV RP122K Reel, Cut Tape
Nisshinbo LDO Voltage Regulators 400 mA Low Noise and Low Supply Current LDO Regulator
Datasheet
98In Stock
Min.: 1
Mult.: 1
Reel: 10,000

SMD/SMT DFN(PLP)1010-4 2.85 V 400 mA 1 Output Positive 1.9 V 5.5 V 90 dB Fixed - 40 C + 85 C 170 mV RP122K Reel, Cut Tape
Nisshinbo LDO Voltage Regulators 400 mA Low Noise and Low Supply Current LDO Regulator
Datasheet
49In Stock
Min.: 1
Mult.: 1
Reel: 10,000

SMD/SMT DFN(PLP)1010-4 3.1 V 400 mA 1 Output Positive 1.9 V 5.5 V 90 dB Fixed - 40 C + 85 C 170 mV RP122K Reel, Cut Tape
Nisshinbo LDO Voltage Regulators 400 mA Low Noise and Low Supply Current LDO Regulator
Datasheet
67In Stock
Min.: 1
Mult.: 1
Reel: 10,000

SMD/SMT DFN(PLP)1010-4 3.3 V 400 mA 1 Output Positive 1.9 V 5.5 V 90 dB Fixed - 40 C + 85 C 155 mV RP122K Reel, Cut Tape
Nisshinbo LDO Voltage Regulators 400 mA Low Noise and Low Supply Current LDO Regulator
Datasheet
1In Stock
Min.: 1
Mult.: 1
Reel: 10,000

SMD/SMT DFN-1010-4 2.9 V 400 mA 1 Output Positive 1.9 V 5.5 V 90 dB Fixed - 40 C + 85 C 170 mV RP122K Reel, Cut Tape
Nisshinbo LDO Voltage Regulators 400 mA Low Noise and Low Supply Current LDO Regulator
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 10,000
Mult.: 10,000
Reel: 10,000

SMD/SMT DFN(PLP)1010-4 1.8 V 400 mA 1 Output Positive 1.9 V 5.5 V 90 dB Fixed - 40 C + 85 C 240 mV RP122K Reel
Nisshinbo LDO Voltage Regulators 400 mA Low Noise and Low Supply Current LDO Regulator
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 10,000
Mult.: 10,000
Reel: 10,000

SMD/SMT DFN-1010-4 3.1 V 400 mA 1 Output Positive 1.9 V 5.5 V 90 dB Fixed - 40 C + 85 C 170 mV RP122K Reel
Nisshinbo LDO Voltage Regulators 400 mA Low Noise and Low Supply Current LDO Regulator
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 10,000
Mult.: 10,000
Reel: 10,000

SMD/SMT DFN(PLP)1010-4 3.5 V 400 mA 1 Output Positive 1.9 V 5.5 V 90 dB Fixed - 40 C + 85 C 155 mV RP122K Reel
Nisshinbo LDO Voltage Regulators 400 mA Low Noise and Low Supply Current LDO Regulator
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 10,000
Mult.: 10,000
Reel: 10,000

SMD/SMT DFN(PLP)1010-4 4.1 V 400 mA 1 Output Positive 1.9 V 5.5 V 90 dB Fixed - 40 C + 85 C 140 mV RP122K Reel
Nisshinbo LDO Voltage Regulators 400 mA Low Noise and Low Supply Current LDO Regulator
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 10,000
Mult.: 10,000
Reel: 10,000

SMD/SMT DFN(PLP)1010-4 4.5 V 400 mA 1 Output Positive 1.9 V 5.5 V 90 dB Fixed - 40 C + 85 C 140 mV RP122K Reel