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 (TWD) 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 ACTIVE DISCHARGE
Datasheet
8,603In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 620
: 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
onsemi LDO Voltage Regulators LDO 450MA ACTIVE DISCHARGE
Datasheet
1,456In Stock
5,000Expected 10/26/2026
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT XDFN-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 LDO Reg, Ultra-Low Noise High PSRR 2.5V
Datasheet
5,268In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 580
: 3,000

SMD/SMT SOT-23-5 2.5 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 48 dB Fixed - 40 C + 125 C 190 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators LDO Reg, Ultra-Low Noise High PSRR 2.8V
Datasheet
3,227In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 350
: 3,000

SMD/SMT SOT-23-5 2.8 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 48 dB Fixed - 40 C + 125 C 260 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators LDO Reg, Ultra-Low Noise High PSRR 3.5V
Datasheet
3,281In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 280
: 3,000

SMD/SMT SOT-23-5 3.5 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 48 dB Fixed 150 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators LDO Reg, Ultra-Low Noise High PSRR 5.0V
Datasheet
3,321In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 280
: 3,000

SMD/SMT SOT-23-5 5 V 450 mA 1 Output Positive 18 uA 1.9 V 5.5 V 48 dB Fixed - 40 C + 125 C 105 mV NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators CSP LDO 450MA NON-ACTIVE
Datasheet
6,518In 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 NON-ACTIVE
Datasheet
5,161In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 NON-ACTIVE
Datasheet
4,366In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

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 450MA NON-ACTIVE DISCHARGE
Datasheet
351In Stock
10,000Expected 11/17/2026
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT XDFN-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 450MA NON-ACTIVE DISCHARGE
Datasheet
2,564In 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 NON-ACTIVE DISCHARGE
Datasheet
2,287In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT XDFN-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
3,461In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

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 NCP161AFCTC280T2G
onsemi LDO Voltage Regulators CSP LDO 450MA 2.8V ACTIVE DISCHARGE
Datasheet
9,990In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

NCP161 Reel, Cut Tape, MouseReel
onsemi LDO Voltage Regulators CSP LDO 450MA NON-ACTIVE
Datasheet
11In 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 ACTIVE DIS
Datasheet
320,000Factory Stock Available
More Info Available
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

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 NON-ACTIVE
Datasheet
355,000Factory Stock Available
More Info Available
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT WLCSP-4 4.5 V 450 mA 1 Output 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 NON-ACTIVE
Datasheet
Non-Stocked Lead-Time 31 Weeks
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