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 (HUF) 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 4/3/2026
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