NCP173 LDO Regulators

onsemi NCP173 LDO Regulators are CMOS low dropout devices designed for portable battery-powered applications that need ultra-low quiescent current and long operating life. These regulators support 150mA of output current, operate from a 2.2V to 5.5V input range, and feature a typical 500nA quiescent current to help extend battery runtime in space-constrained designs.

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Description Datasheet Availability Pricing (CLP) 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 150MA LDO ULTRA LOW IQ ACT DISCHARGE VOUT=1.5V
Datasheet
3.500In Stock
Min.: 1
Mult.: 1
: 5.000

SMD/SMT XDFN-4 1.5 V 150 mA 1 Output Positive 500 nA 2.2 V 5.5 V 62 dB Fixed - 55 C + 150 C NCP173 Reel, Cut Tape
onsemi LDO Voltage Regulators 150MA LDO ULTRA LOW IQ ACT DISCHARGE VOUT=1.8V
Datasheet
3.500In Stock
Min.: 1
Mult.: 1
: 5.000

SMD/SMT XDFN-4 1.8 V 150 mA 1 Output Positive 500 nA 2.2 V 5.5 V 62 dB Fixed - 55 C + 150 C 360 mV NCP173 Reel, Cut Tape
onsemi LDO Voltage Regulators 150MA LDO ULTRA LOW IQ ACT DISCHARGE VOUT=2.8V
Datasheet
3.500In Stock
Min.: 1
Mult.: 1
: 5.000

SMD/SMT XDFN-4 2.8 V 150 mA 1 Output Positive 500 nA 2.2 V 5.5 V 62 dB Fixed - 55 C + 150 C 220 mV NCP173 Reel, Cut Tape
onsemi LDO Voltage Regulators 150MA LDO ULTRA LOW IQ ACT DISCHARGE VOUT=2.8V
Datasheet
3.500In Stock
Min.: 1
Mult.: 1
: 5.000

SMD/SMT XDFN-4 2.8 V 150 mA 1 Output Positive 500 nA 2.2 V 5.5 V 62 dB Fixed - 55 C + 150 C 280 mV NCP173 Reel, Cut Tape
onsemi LDO Voltage Regulators 150MA LDO ULTRA LOW IQ ACT DISCHARGE VOUT=2.85V
Datasheet
3.500In Stock
Min.: 1
Mult.: 1
: 5.000

SMD/SMT XDFN-4 2.85 V 150 mA 1 Output Positive 500 nA 2.2 V 5.5 V 62 dB Fixed - 55 C + 150 C NCP173 Reel, Cut Tape
onsemi LDO Voltage Regulators 150MA LDO ULTRA LOW IQ ACT DISCHARGE VOUT=3.0V
Datasheet
3.500In Stock
Min.: 1
Mult.: 1
: 5.000

SMD/SMT XDFN-4 3 V 150 mA 1 Output Positive 500 nA 2.2 V 5.5 V 62 dB Fixed - 55 C + 150 C 200 mV NCP173 Reel, Cut Tape
onsemi LDO Voltage Regulators 150MA LDO ULTRA LOW IQ ACT DISCHARGE VOUT=3.0V
Datasheet
3.500In Stock
Min.: 1
Mult.: 1
: 5.000

SMD/SMT XDFN-4 3 V 150 mA 1 Output Positive 500 nA 2.2 V 5.5 V 62 dB Fixed - 55 C + 150 C 200 mV NCP173 Reel, Cut Tape
onsemi LDO Voltage Regulators 150MA LDO ULTRA LOW IQ ACT DISCHARGE VOUT=3.3V
Datasheet
3.500In Stock
Min.: 1
Mult.: 1
: 5.000

SMD/SMT XDFN-4 3.3 V 150 mA 1 Output Positive 500 nA 2.2 V 5.5 V 62 dB Fixed - 55 C + 150 C 190 mV NCP173 Reel, Cut Tape
onsemi LDO Voltage Regulators 150MA LDO ULTRA LOW IQ ACT DISCHARGE VOUT=3.3V
Datasheet
3.500In Stock
Min.: 1
Mult.: 1
: 5.000

SMD/SMT XDFN-4 3.3 V 150 mA 1 Output Positive 500 nA 2.2 V 5.5 V 62 dB Fixed - 55 C + 150 C 190 mV NCP173 Reel, Cut Tape
onsemi LDO Voltage Regulators 150MA LDO ULTRA LOW IQ ACT DISCHARGE VOUT=1.35V
Datasheet
5.000Expected 9/1/2026
Min.: 1
Mult.: 1
: 5.000

SMD/SMT XDFN-4 1.35 V 150 mA 1 Output Positive 500 nA 2.2 V 5.5 V 62 dB Fixed - 55 C + 150 C NCP173 Reel, Cut Tape
onsemi LDO Voltage Regulators 150MA LDO ULTRA LOW IQ HIGH OHMIC STATE VOUT=1.35V
Datasheet
5.000Expected 9/18/2026
Min.: 1
Mult.: 1
: 5.000

SMD/SMT XDFN-4 3.6 V 150 mA 1 Output Positive 500 nA 2.2 V 5.5 V 62 dB Fixed - 55 C + 150 C NCP173 Reel, Cut Tape
onsemi LDO Voltage Regulators 150MA LDO ULTRA LOW IQ ACT DISCHARGE VOUT=2.5V
Datasheet
Non-Stocked Lead-Time 22 Weeks
Min.: 1
Mult.: 1
: 5.000

SMD/SMT XDFN-4 2.5 V 150 mA 1 Output Positive 500 nA 2.2 V 5.5 V 62 dB Fixed - 55 C + 150 C 250 mV NCP173 Reel, Cut Tape
onsemi LDO Voltage Regulators 150MA LDO ULTRA LOW IQ ACT DISCHARGE VOUT=3.6V
Datasheet
Non-Stocked Lead-Time 22 Weeks
Min.: 1
Mult.: 1
: 5.000

SMD/SMT XDFN-4 3.6 V 150 mA 1 Output Positive 500 nA 2.2 V 5.5 V 62 dB Fixed - 55 C + 150 C 180 mV NCP173 Reel, Cut Tape
onsemi LDO Voltage Regulators 150MA LDO ULTRA LOW IQ HIGH OHMIC STATE VOUT=1.5V
Datasheet
Non-Stocked Lead-Time 22 Weeks
Min.: 1
Mult.: 1
: 5.000

SMD/SMT XDFN-4 3.6 V 150 mA 1 Output Positive 500 nA 2.2 V 5.5 V 62 dB Fixed - 55 C + 150 C NCP173 Reel, Cut Tape
onsemi LDO Voltage Regulators 150MA LDO ULTRA LOW IQ HIGH OHMIC STATE VOUT=1.8V
Datasheet
Non-Stocked Lead-Time 23 Weeks
Min.: 1
Mult.: 1
: 5.000

SMD/SMT XDFN-4 1.8 V 150 mA 1 Output Positive 500 nA 2.2 V 5.5 V 62 dB Fixed - 55 C + 150 C 360 mV NCP173 Reel, Cut Tape
onsemi LDO Voltage Regulators 150MA LDO ULTRA LOW IQ HIGH OHMIC STATE VOUT=1.9V
Datasheet
Non-Stocked Lead-Time 22 Weeks
Min.: 1
Mult.: 1
: 5.000

SMD/SMT XDFN-4 1.9 V 150 mA 1 Output Positive 500 nA 2.2 V 5.5 V 62 dB Fixed - 55 C + 150 C 345 mV NCP173 Reel, Cut Tape
onsemi LDO Voltage Regulators 150MA LDO ULTRA LOW IQ HIGH OHMIC STATE VOUT=2.8V
Datasheet
Non-Stocked Lead-Time 22 Weeks
Min.: 1
Mult.: 1
: 5.000

SMD/SMT XDFN-4 2.8 V 150 mA 1 Output Positive 500 nA 2.2 V 5.5 V 62 dB Fixed - 55 C + 150 C 220 mV NCP173 Reel, Cut Tape
onsemi LDO Voltage Regulators 150MA LDO ULTRA LOW IQ HIGH OHMIC STATE VOUT=2.85V
Datasheet
Non-Stocked Lead-Time 22 Weeks
Min.: 1
Mult.: 1
: 5.000

SMD/SMT XDFN-4 2.85 V 150 mA 1 Output Positive 500 nA 2.2 V 5.5 V 62 dB Fixed - 55 C + 150 C NCP173 Reel, Cut Tape
onsemi LDO Voltage Regulators 150MA LDO ULTRA LOW IQ HIGH OHMIC STATE VOUT=3.0V
Datasheet
Non-Stocked Lead-Time 25 Weeks
Min.: 1
Mult.: 1
: 5.000

SMD/SMT XDFN-4 3 V 150 mA 1 Output Positive 500 nA 2.2 V 5.5 V 62 dB Fixed - 55 C + 150 C 200 mV NCP173 Reel, Cut Tape
onsemi LDO Voltage Regulators 150MA LDO ULTRA LOW IQ HIGH OHMIC STATE VOUT=3.1V
Datasheet
Non-Stocked Lead-Time 22 Weeks
Min.: 1
Mult.: 1
: 5.000

SMD/SMT XDFN-4 3.1 V 150 mA 1 Output Positive 500 nA 2.2 V 5.5 V 62 dB Fixed - 55 C + 150 C NCP173 Reel, Cut Tape
onsemi LDO Voltage Regulators 150MA LDO ULTRA LOW IQ HIGH OHMIC STATE VOUT=3.6V
Datasheet
Non-Stocked Lead-Time 22 Weeks
Min.: 1
Mult.: 1
: 5.000

SMD/SMT XDFN-4 3.6 V 150 mA 1 Output Positive 500 nA 2.2 V 5.5 V 62 dB Fixed - 55 C + 150 C 180 mV NCP173 Reel, Cut Tape