LDO Voltage Regulators – Mouser South Africa

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Ultralow Dropout LDOs

STMicroelectronics Ultra Low Dropout LDOs are a wide range of low and medium-power LDO regulators with ultralow dropout and fast transient response. These ultralow LDOs simplify the design of high-efficiency, cost-effective linear power management (from 50mA to 3A of continuous load current). This makes them ideal for DSPs, MCUs, and FPGAs.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package/Case	Output Voltage	Output Current	Number of Outputs	Polarity	Quiescent Current	PSRR / Ripple Rejection - Typ	Output Type	Minimum Operating Temperature	Maximum Operating Temperature	Dropout Voltage	Qualification	Series	Packaging
LDO Voltage Regulators 300mA low Q LDO 1.9 to 5.5V 100mV LDK130C33R STMicroelectronics 1: $0.40 1,315In Stock	Mfr. Part No. LDK130C33R Mouser Part No 511-LDK130C33R	STMicroelectronics	LDO Voltage Regulators 300mA low Q LDO 1.9 to 5.5V 100mV Learn More about STMicroelectronics stm ldk130c regulator	Datasheet	1,315In Stock	Cut Tape $0.40 $0.279 $0.248 $0.214 Reel $0.167 View $0.198 $0.188 $0.18 $0.159 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-323-5	3.3 V	300 mA	1 Output	Positive	30 uA	55 dB	Fixed	- 40 C	+ 125 C	100 mV		LDK130	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 300mA current very low noise LDO LDK130M10R STMicroelectronics 1: $0.461 1,549In Stock 6,000Expected 2027/05/28	Mfr. Part No. LDK130M10R Mouser Part No 511-LDK130M10R	STMicroelectronics	LDO Voltage Regulators 300mA current very low noise LDO Learn More about STMicroelectronics stm ldk130m regulator	Datasheet	1,549In Stock 6,000Expected 2027/05/28	Cut Tape $0.461 $0.32 $0.285 $0.283 Reel $0.166 View $0.27 $0.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	1 V	300 mA	1 Output	Positive	30 uA	55 dB	Fixed	- 40 C	+ 125 C	100 mV	AEC-Q100	LDK130	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 300mA Low Quiescent Crnt low noise LDO LDK130M12R STMicroelectronics 1: $0.40 8,191In Stock	Mfr. Part No. LDK130M12R Mouser Part No 511-LDK130M12R	STMicroelectronics	LDO Voltage Regulators 300mA Low Quiescent Crnt low noise LDO Learn More about STMicroelectronics stm ldk130m regulator	Datasheet	8,191In Stock	Cut Tape $0.40 $0.276 $0.247 $0.213 Reel $0.167 View $0.197 $0.187 $0.179 $0.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	1.2 V	300 mA	1 Output	Positive	30 uA		Fixed	- 40 C	+ 125 C	100 mV	AEC-Q100	LDK130	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 300mA Low Quiescent Crnt low noise LDO LDK130M18R STMicroelectronics 1: $0.39 8,255In Stock	Mfr. Part No. LDK130M18R Mouser Part No 511-LDK130M18R	STMicroelectronics	LDO Voltage Regulators 300mA Low Quiescent Crnt low noise LDO Learn More about STMicroelectronics stm ldk130m regulator	Datasheet	8,255In Stock	Cut Tape $0.39 $0.276 $0.247 $0.213 Reel $0.16 View $0.197 $0.187 $0.179 $0.159 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	1.8 V	300 mA	1 Output	Positive	30 uA		Fixed	- 40 C	+ 125 C	100 mV	AEC-Q100	LDK130	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 300 mA low quiescent current very low noise LDO (automotive for SOT23-5L package LDK130M18RY STMicroelectronics 1: $0.811 489In Stock 6,000Expected 2027/02/19	Mfr. Part No. LDK130M18RY Mouser Part No 511-LDK130M18RY	STMicroelectronics	LDO Voltage Regulators 300 mA low quiescent current very low noise LDO (automotive for SOT23-5L package Learn More about STMicroelectronics stm ldk130m regulator	Datasheet	489In Stock 6,000Expected 2027/02/19	Cut Tape $0.811 $0.576 $0.518 $0.463 View Reel $0.215 $0.433 $0.413 $0.39 $0.215 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	1.8 V	300 mA	1 Output	Positive	30 uA	55 dB	Fixed	- 40 C	+ 125 C	100 mV	AEC-Q100	LDK130	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 300 mA low quiescent current very low noise LDO automotive LDK130M25R STMicroelectronics 1: $0.42 3,722In Stock	Mfr. Part No. LDK130M25R Mouser Part No 511-LDK130M25R	STMicroelectronics	LDO Voltage Regulators 300 mA low quiescent current very low noise LDO automotive Learn More about STMicroelectronics stm ldk130m regulator	Datasheet	3,722In Stock	Cut Tape $0.42 $0.287 $0.256 $0.22 Reel $0.174 View $0.204 $0.194 $0.185 $0.169 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	2.5 V	300 mA	1 Output	Positive	30 uA		Fixed	- 40 C	+ 125 C	100 mV	AEC-Q100	LDK130	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 300 mA low quiescent current very low noise LDO (automotive for SOT23-5L package LDK130M28RY STMicroelectronics 1: $0.52 1,024In Stock	Mfr. Part No. LDK130M28RY Mouser Part No 511-LDK130M28RY	STMicroelectronics	LDO Voltage Regulators 300 mA low quiescent current very low noise LDO (automotive for SOT23-5L package Learn More about STMicroelectronics stm ldk130m regulator	Datasheet	1,024In Stock	Cut Tape $0.52 $0.357 $0.317 $0.274 Reel $0.214 View $0.254 $0.241 $0.231 $0.195 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	2.8 V	300 mA	1 Output	Positive	30 uA	55 dB	Fixed	- 40 C	+ 125 C	200 mV	AEC-Q100	LDK130	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 300 mA low quiescent current very low noise LDO (automotive for SOT23-5L package LDK130M29R STMicroelectronics 1: $0.42 2,206In Stock	Mfr. Part No. LDK130M29R Mouser Part No 511-LDK130M29R	STMicroelectronics	LDO Voltage Regulators 300 mA low quiescent current very low noise LDO (automotive for SOT23-5L package Learn More about STMicroelectronics stm ldk130m regulator	Datasheet	2,206In Stock	Cut Tape $0.42 $0.29 $0.258 $0.223 Reel $0.167 View $0.206 $0.197 $0.188 $0.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	2.9 V	300 mA	1 Output	Positive	30 uA	55 dB	Fixed	- 40 C	+ 125 C	100 mV	AEC-Q100	LDK130	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 300mA Low Quiescent Crnt low noise LDO LDK130M32R STMicroelectronics 1: $0.40 2,489In Stock 6,000Expected 2026/10/26	Mfr. Part No. LDK130M32R Mouser Part No 511-LDK130M32R	STMicroelectronics	LDO Voltage Regulators 300mA Low Quiescent Crnt low noise LDO Learn More about STMicroelectronics stm ldk130m regulator	Datasheet	2,489In Stock 6,000Expected 2026/10/26	Cut Tape $0.40 $0.279 $0.248 $0.214 Reel $0.16 View $0.198 $0.188 $0.18 $0.157 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	3.2 V	300 mA	1 Output	Positive	30 uA		Fixed	- 40 C	+ 125 C	100 mV	AEC-Q100	LDK130	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 300 mA low quiescent current very low noise LDO (automotive for SOT23-5L package LDK130M33RY STMicroelectronics 1: $0.49 2,916In Stock 6,000Expected 2027/09/13	Mfr. Part No. LDK130M33RY Mouser Part No 511-LDK130M33RY	STMicroelectronics	LDO Voltage Regulators 300 mA low quiescent current very low noise LDO (automotive for SOT23-5L package Learn More about STMicroelectronics stm ldk130m regulator	Datasheet	2,916In Stock 6,000Expected 2027/09/13	Cut Tape $0.49 $0.345 $0.308 $0.267 Reel $0.214 View $0.249 $0.237 $0.227 $0.202 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	3.3 V	300 mA	1 Output	Positive	30 uA	55 dB	Fixed	- 40 C	+ 125 C	100 mV	AEC-Q100	LDK130	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 300mA current very low noise LDO LDK130PU-R STMicroelectronics 1: $0.40 3,978In Stock	Mfr. Part No. LDK130PU-R Mouser Part No 511-LDK130PU-R	STMicroelectronics	LDO Voltage Regulators 300mA current very low noise LDO Learn More about STMicroelectronics stm ldk130p regulator	Datasheet	3,978In Stock	Cut Tape $0.40 $0.279 $0.248 $0.214 Reel $0.173 View $0.198 $0.188 $0.18 $0.164 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	Adjustable	300 mA	1 Output	Positive	30 uA	55 dB	Adjustable	- 40 C	+ 125 C	100 mV		LDK130	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 200 mA low quiescent current and low noise LDO LDK220C-R STMicroelectronics 1: $0.42 63In Stock 6,000Expected 2027/05/28	Mfr. Part No. LDK220C-R Mouser Part No 511-LDK220C-R	STMicroelectronics	LDO Voltage Regulators 200 mA low quiescent current and low noise LDO Learn More about STMicroelectronics stm ldk220 regulator	Datasheet	63In Stock 6,000Expected 2027/05/28	Cut Tape $0.42 $0.294 $0.262 $0.222 View Reel $0.176 $0.208 $0.19 $0.183 $0.176 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-323-5	Adjustable	200 mA	1 Output	Positive	60 uA	45 dB	Adjustable	- 40 C	+ 125 C	200 mV		LDK220	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 200 mA low quiescent current and low noise LDO LDK220C50R STMicroelectronics 1: $0.39 4,092In Stock 27,000On Order	Mfr. Part No. LDK220C50R Mouser Part No 511-LDK220C50R	STMicroelectronics	LDO Voltage Regulators 200 mA low quiescent current and low noise LDO Learn More about STMicroelectronics stm ldk220 regulator	Datasheet	4,092In Stock 27,000On Order On Order Ship Dates Mfr. No: LDK220C50R Stock: 4,092 Can Dispatch Immediately On Order: 9,000 Expected 2027/05/28 18,000 Expected 2027/06/04 Factory Lead Time: 30 Weeks	Cut Tape $0.39 $0.27 $0.241 $0.208 View Reel $0.174 $0.195 $0.187 $0.18 $0.174 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-323-5	5 V	200 mA	1 Output	Positive	55 uA		Fixed	- 40 C	+ 125 C	100 mV		LDK220	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 200 mA low quiescent current and low noise LDO LDK220M25R STMicroelectronics 1: $0.44 382In Stock	Mfr. Part No. LDK220M25R Mouser Part No 511-LDK220M25R	STMicroelectronics	LDO Voltage Regulators 200 mA low quiescent current and low noise LDO Learn More about STMicroelectronics stm ldk220 regulator	Datasheet	382In Stock	Cut Tape $0.44 $0.304 $0.271 $0.254 View Reel $0.181 $0.206 $0.20 $0.181 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	2.5 V	200 mA	1 Output	Positive	60 uA	50 dB	Fixed	- 40 C	+ 125 C	200 mV		LDK220	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 200 mA low quiescent current and low noise LDO LDK220M27R STMicroelectronics 1: $0.39 1,402In Stock 6,000Expected 2027/05/28	Mfr. Part No. LDK220M27R Mouser Part No 511-LDK220M27R	STMicroelectronics	LDO Voltage Regulators 200 mA low quiescent current and low noise LDO Learn More about STMicroelectronics stm ldk220 regulator	Datasheet	1,402In Stock 6,000Expected 2027/05/28	Cut Tape $0.39 $0.267 $0.24 $0.207 Reel $0.164 View $0.191 $0.183 $0.174 $0.154 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	2.7 V	200 mA	1 Output	Positive	55 uA		Fixed	- 40 C	+ 125 C	100 mV		LDK220	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 200 mA low quiescent current and low noise LDO LDK220M33R STMicroelectronics 1: $0.39 913In Stock 9,000Expected 2027/04/02	Mfr. Part No. LDK220M33R Mouser Part No 511-LDK220M33R	STMicroelectronics	LDO Voltage Regulators 200 mA low quiescent current and low noise LDO Learn More about STMicroelectronics stm ldk220 regulator	Datasheet	913In Stock 9,000Expected 2027/04/02	Cut Tape $0.39 $0.27 $0.241 $0.208 View Reel $0.159 $0.192 $0.183 $0.176 $0.159 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	3.3 V	200 mA	1 Output	Positive	55 uA		Fixed	- 40 C	+ 125 C	100 mV		LDK220	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 200 mA low quiescent current and low noise LDO LDK220M40R STMicroelectronics 1: $0.39 7,963In Stock	Mfr. Part No. LDK220M40R Mouser Part No 511-LDK220M40R	STMicroelectronics	LDO Voltage Regulators 200 mA low quiescent current and low noise LDO Learn More about STMicroelectronics stm ldk220 regulator	Datasheet	7,963In Stock	Cut Tape $0.39 $0.267 $0.24 $0.207 Reel $0.162 View $0.191 $0.183 $0.174 $0.151 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	4 V	200 mA	1 Output	Positive	55 uA		Fixed	- 40 C	+ 125 C	100 mV		LDK220	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 200 mA low quiescent current and low noise LDO LDK220M50R STMicroelectronics 1: $0.39 5,977In Stock	Mfr. Part No. LDK220M50R Mouser Part No 511-LDK220M50R	STMicroelectronics	LDO Voltage Regulators 200 mA low quiescent current and low noise LDO Learn More about STMicroelectronics stm ldk220 regulator	Datasheet	5,977In Stock	Cut Tape $0.39 $0.269 $0.24 $0.207 Reel $0.164 View $0.192 $0.183 $0.176 $0.159 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	5 V	200 mA	1 Output	Positive	55 uA		Fixed	- 40 C	+ 125 C	100 mV		LDK220	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 200 mA low quiescent current and low noise LDO LDK220PU-R STMicroelectronics 1: $0.411 358In Stock	Mfr. Part No. LDK220PU-R Mouser Part No 511-LDK220PU-R	STMicroelectronics	LDO Voltage Regulators 200 mA low quiescent current and low noise LDO Learn More about STMicroelectronics stm ldk220 regulator	Datasheet	358In Stock	Cut Tape $0.411 $0.29 $0.259 $0.224 Reel $0.164 View $0.207 $0.197 $0.19 $0.148 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	Adjustable	200 mA	1 Output	Positive	60 uA		Adjustable	- 40 C	+ 125 C	100 mV		LDK220	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 200 mA low quiescent current and low noise LDO LDK220U33R STMicroelectronics 1: $0.33 6,561In Stock	Mfr. Part No. LDK220U33R Mouser Part No 511-LDK220U33R	STMicroelectronics	LDO Voltage Regulators 200 mA low quiescent current and low noise LDO Learn More about STMicroelectronics stm ldk220 regulator	Datasheet	6,561In Stock	Cut Tape $0.33 $0.233 $0.211 $0.185 Reel $0.154 View $0.174 $0.167 $0.16 $0.15 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOT-89-3	3.3 V	200 mA	1 Output	Positive	60 uA	50 dB	Fixed	- 40 C	+ 125 C	200 mV		LDK220	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 200 mA low quiescent current and low noise LDO LDK220U50R STMicroelectronics 1: $0.39 5,973In Stock	Mfr. Part No. LDK220U50R Mouser Part No 511-LDK220U50R	STMicroelectronics	LDO Voltage Regulators 200 mA low quiescent current and low noise LDO Learn More about STMicroelectronics stm ldk220 regulator	Datasheet	5,973In Stock	Cut Tape $0.39 $0.267 $0.24 $0.207 $0.192 Reel $0.192 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOT-89-3	5 V	200 mA	1 Output	Positive	60 uA	50 dB	Fixed	- 40 C	+ 125 C	200 mV		LDK220	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 200 mA low quiescent current and high PSRR voltage regulator LDK320ADU120R STMicroelectronics 1: $0.44 5,919In Stock	Mfr. Part No. LDK320ADU120R Mouser Part No 511-LDK320ADU120R	STMicroelectronics	LDO Voltage Regulators 200 mA low quiescent current and high PSRR voltage regulator Learn More about STMicroelectronics stm ldk320 regulators	Datasheet	5,919In Stock	Cut Tape $0.44 $0.311 $0.277 $0.24 Reel $0.198 View $0.222 $0.212 $0.207 $0.192 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOT-89-3	12 V	200 mA	1 Output	Positive	60 uA	88 dB	Fixed	- 40 C	+ 125 C	200 mV		LDK320	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 200 mA low quiescent current and high PSRR voltage regulator LDK320AM30R STMicroelectronics 1: $0.45 38In Stock 6,000Expected 2026/11/09	Mfr. Part No. LDK320AM30R Mouser Part No 511-LDK320AM30R	STMicroelectronics	LDO Voltage Regulators 200 mA low quiescent current and high PSRR voltage regulator Learn More about STMicroelectronics stm ldk320 regulators	Datasheet	38In Stock 6,000Expected 2026/11/09	Cut Tape $0.45 $0.316 $0.283 $0.243 Reel $0.193 View $0.224 $0.213 $0.204 $0.187 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	3 V	200 mA	1 Output	Positive	70 uA	48 dB	Fixed	- 40 C	+ 125 C	100 mV		LDK320	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 200 mA low quiescent current and high PSRR voltage regulator LDK320AM33R STMicroelectronics 1: $0.49 7,120In Stock	Mfr. Part No. LDK320AM33R Mouser Part No 511-LDK320AM33R	STMicroelectronics	LDO Voltage Regulators 200 mA low quiescent current and high PSRR voltage regulator Learn More about STMicroelectronics stm ldk320 regulators	Datasheet	7,120In Stock	Cut Tape $0.49 $0.317 $0.283 $0.244 Reel $0.207 View $0.226 $0.214 $0.201 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	3.3 V	200 mA	1 Output	Positive	70 uA	48 dB	Fixed	- 40 C	+ 125 C	200 mV		LDK320	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 200 mA low quiescent current and high PSRR voltage regulator LDK320AM36R STMicroelectronics 1: $0.49 1,098In Stock 12,000On Order	Mfr. Part No. LDK320AM36R Mouser Part No 511-LDK320AM36R	STMicroelectronics	LDO Voltage Regulators 200 mA low quiescent current and high PSRR voltage regulator Learn More about STMicroelectronics stm ldk320 regulators	Datasheet	1,098In Stock 12,000On Order	Cut Tape $0.49 $0.341 $0.305 $0.264 Reel $0.19 View $0.244 $0.233 $0.223 $0.183 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	3.6 V	200 mA	1 Output	Positive	60 uA	88 dB	Fixed	- 40 C	+ 125 C	200 mV		LDK320	Reel, Cut Tape, MouseReel