NCP161 High PSRR LDO Regulators

onsemi NCP161 High PSRR LDO Regulators are linear regulators capable of supplying 450mA output currents. The NCP161 is designed to meet the requirements of RF and analog circuits. The devices offer low noise, high PSRR, low quiescent current, and very good load/line transient performance. The device is designed to work with a 1µF input and a 1µF ceramic output capacitor. The onsemi NCP161 are available in two thickness ultrasmall 0.35P, 0.65x0.65mm Chip Scale Package (CSP) and XDFN-4 0.65P, 1mm x 1mm.

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Description Datasheet Availability Pricing (USD) 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
Quiescent Current
Input Voltage - Min
Input Voltage - Max
PSRR / Ripple Rejection - Typ
Output Type
Minimum Operating Temperature
Maximum Operating Temperature
Dropout Voltage
Series
Packaging
onsemi LDO Voltage Regulators 450MA CMOS LDO AD
Datasheet
141,139In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 650
: 5,000

SMD/SMT XDFN-4 3.3 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 98 dB Fixed - 55 C + 150 C 150 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators 450MA CMOS LDO HZ
Datasheet
20,413In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT XDFN-4 3.3 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 98 dB Fixed - 55 C + 150 C 150 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators 450 mA Active Discharge
Datasheet
4,164In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT XDFN-4 1.85 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 98 dB Fixed - 40 C + 125 C 290 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators LDO Reg, Ultra-Low Noise High PSRR 3.0V
Datasheet
5,011In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 300
: 3,000

SMD/SMT SOT-23-5 3 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 48 dB Fixed - 40 C + 125 C 240 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators CSP LDO 450MA ACTIVE DIS
Datasheet
17,418In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 940
: 10,000

SMD/SMT WLCSP-4 1.8 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 98 dB Fixed - 55 C + 150 C 300 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators CSP LDO 450MA ACTIVE DIS
Datasheet
9,900Expected 04/08/2026
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

SMD/SMT WLCSP-4 5.14 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 98 dB Fixed - 40 C + 125 C 150 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators CSP LDO 450MA ACTIVE DIS
Datasheet
8,797In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT WLCSP-4 3.5 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 98 dB Fixed - 55 C + 150 C 150 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators CSP LDO 450MA NON-ACTIVE
Datasheet
9,873In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT WLCSP-4 2.5 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 98 dB Fixed - 55 C + 150 C 190 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators CSP LDO 450MA ACTIVE DIS
Datasheet
17,703In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 820
: 10,000

SMD/SMT WLCSP-4 3.3 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 98 dB Fixed - 55 C + 150 C 150 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators LDO Reg, Ultra-Low Noise High PSRR 1.8V
Datasheet
34,352In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 550
: 3,000

SMD/SMT SOT-23-5 1.8 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 48 dB Fixed - 40 C + 125 C 365 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators LDO Reg, Ultra-Low Noise High PSRR 3.3V
Datasheet
41,504In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 440
: 3,000

SMD/SMT SOT-23-5 3.3 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 48 dB Fixed - 40 C + 125 C 225 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators CSP LDO 450MA ACTIVE DIS
Datasheet
8,170In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT WLCSP-4 1.8 V 450 mA 1 Output 18 uA 1.9 V 5.5 V 98 dB Fixed - 55 C + 150 C 300 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators CSP LDO 450MA ACTIVE DIS
Datasheet
3,745In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT WLCSP-4 2.5 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 98 dB Fixed - 55 C + 150 C 190 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators CSP LDO 450MA ACTIVE DIS
Datasheet
4,441In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT WLCSP-4 2.8 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 98 dB Fixed - 55 C + 150 C 175 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators CSP LDO 450MA ACTIVE DIS
Datasheet
166In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT WLCSP-4 2.85 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 98 dB Fixed - 55 C + 150 C 170 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators CSP LDO 450MA ACTIVE DIS
Datasheet
5,755In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT WLCSP-4 3 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 98 dB Fixed - 55 C + 150 C 165 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators CSP LDO 450MA ACTIVE
Datasheet
3,494In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT WLCSP-4 3.2 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 98 dB Fixed - 40 C + 125 C 150 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators CSP LDO 450MA ACTIVE DIS
Datasheet
3,826In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT WLCSP-4 3.3 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 98 dB Fixed - 55 C + 150 C 150 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators CSP LDO 450MA ACTIVE DIS
Datasheet
4,978In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT WLCSP-4 4.5 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 98 dB Fixed - 55 C + 150 C 120 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators CSP LDO 450MA ACTIVE DIS
Datasheet
3,276In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT WLCSP-4 5 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 98 dB Fixed - 55 C + 150 C 105 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators CSP LDO 450MA ACTIVE DIS
Datasheet
6,280In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

SMD/SMT WLCSP-4 2.8 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 98 dB Fixed - 55 C + 150 C 175 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators CSP LDO 450MA ACTIVE DIS
Datasheet
9,787In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

SMD/SMT WLCSP-4 3 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 98 dB Fixed - 55 C + 150 C 165 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators 450MA ACTIVE DISCHARGE
Datasheet
398In Stock
5,000Expected 04/08/2026
MouseReel Available
Min.: 1
Mult.: 1
Max.: 650
: 5,000

SMD/SMT XDFN-4 1.8 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 98 dB Fixed - 55 C + 150 C 300 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators 450MA ACTIVE DISCHARGE
Datasheet
534In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT XDFN-4 2.8 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 98 dB Fixed - 55 C + 150 C 175 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators 450MA ACTIVE DISCHARGE
Datasheet
8,603In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 650
: 5,000

SMD/SMT XDFN-4 3 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 98 dB Fixed - 55 C + 150 C 165 mV NCP161 Reel, Cut Tape, MouseReel