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Power Management ICs

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (HKD) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package/Case	Output Voltage
LDO Voltage Regulators 250 mA ultra-low noise LDO LDLN025M33R STMicroelectronics 1: HK$3.12 9,582In Stock	Mfr. Part No. LDLN025M33R Mouser Part No 511-LDLN025M33R	STMicroelectronics	LDO Voltage Regulators 250 mA ultra-low noise LDO Learn More about STMicroelectronics stm ldln025 ldos	Datasheet	9,582In Stock	Cut Tape HK$3.12 HK$2.12 HK$1.89 HK$1.63 Reel HK$1.26 View HK$1.50 HK$1.43 HK$1.37 HK$1.22 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	3.3 V
LDO Voltage Regulators 400 mA, 38 V low-dropout regulator, with 45uAA quiescent current LDO40LPU50RY STMicroelectronics 1: HK$14.47 3,095In Stock 18,000On Order	Mfr. Part No. LDO40LPU50RY Mouser Part No 511-LDO40LPU50RY	STMicroelectronics	LDO Voltage Regulators 400 mA, 38 V low-dropout regulator, with 45uAA quiescent current Learn More about STMicroelectronics stm ldo40l low dropout regulator	Datasheet	3,095In Stock 18,000On Order	Cut Tape HK$14.47 HK$10.69 HK$9.70 HK$8.63 View Reel HK$7.80 HK$8.10 HK$7.80 HK$7.80 MouseReel Available	Min.: 1 Mult.: 1 Max.: 900 : 3,000	SMD/SMT	DFN-6	5 V
LDO Voltage Regulators 400 mA, 38 V low-dropout regulator, with 45uAA quiescent current LDO40LPURY STMicroelectronics 1: HK$14.96 15,949In Stock 12,000On Order	Mfr. Part No. LDO40LPURY Mouser Part No 511-LDO40LPURY	STMicroelectronics	LDO Voltage Regulators 400 mA, 38 V low-dropout regulator, with 45uAA quiescent current Learn More about STMicroelectronics stm ldo40l low dropout regulator	Datasheet	15,949In Stock 12,000On Order On Order Ship Dates Mfr. No: LDO40LPURY Stock: 15,949 Can Dispatch Immediately On Order: 3,000 Expected 25/1/2027 9,000 Expected 13/4/2027 Factory Lead Time: 30 Weeks	Cut Tape HK$14.96 HK$11.01 HK$10.03 HK$8.88 Reel HK$7.47 View HK$8.38 HK$8.03 HK$8.01 HK$7.12 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	Adjustable
LDO Voltage Regulators 3.3 Volt 300mA LDS3985M33R STMicroelectronics 1: HK$7.15 6,748In Stock 3,000Expected 30/4/2027	Mfr. Part No. LDS3985M33R Mouser Part No 511-LDS3985M33R	STMicroelectronics	LDO Voltage Regulators 3.3 Volt 300mA Learn More about STMicroelectronics stm standard products	Datasheet	6,748In Stock 3,000Expected 30/4/2027	Cut Tape HK$7.15 HK$5.22 HK$5.10 HK$4.51 HK$4.21 Reel HK$4.21 MouseReel Available	Min.: 1 Mult.: 1 Max.: 420 : 3,000	SMD/SMT	TSOT-23-5	3.3 V
LDO Voltage Regulators 3.3V 100mA Positive LE33CD-TR STMicroelectronics 1: HK$8.55 8,861In Stock 5,000Expected 10/5/2027	Mfr. Part No. LE33CD-TR Mouser Part No 511-LE33CD-TR	STMicroelectronics	LDO Voltage Regulators 3.3V 100mA Positive Learn More about STMicroelectronics stm standard products	Datasheet	8,861In Stock 5,000Expected 10/5/2027	Cut Tape HK$8.55 HK$6.22 HK$5.64 HK$4.92 Reel HK$4.14 View HK$4.64 HK$4.47 HK$4.36 HK$4.05 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOIC-8	3.3 V
LDO Voltage Regulators 3.3V 100mA Positive LE33CZ-TR STMicroelectronics 1: HK$8.88 6,603In Stock 10,000Expected 28/12/2026	Mfr. Part No. LE33CZ-TR Mouser Part No 511-LE33CZ-TR	STMicroelectronics	LDO Voltage Regulators 3.3V 100mA Positive Learn More about STMicroelectronics stm standard products	Datasheet	6,603In Stock 10,000Expected 28/12/2026	Cut Tape HK$8.88 HK$6.42 HK$5.80 HK$5.12 Reel HK$4.16 View HK$4.79 HK$4.59 HK$4.48 HK$4.07	Min.: 1 Mult.: 1 : 2,000	Through Hole	TO-92-3	3.3 V
LDO Voltage Regulators 5.0V 100mA Positive LE50ABZ-AP STMicroelectronics 1: HK$8.38 3,220In Stock	Mfr. Part No. LE50ABZ-AP Mouser Part No 511-LE50ABZ-AP	STMicroelectronics	LDO Voltage Regulators 5.0V 100mA Positive Learn More about STMicroelectronics stm standard products	Datasheet	3,220In Stock	HK$8.38 HK$6.42 HK$5.80 HK$5.12 Reel HK$4.12 View HK$4.79 HK$4.59 HK$4.57 HK$4.04	Min.: 1 Mult.: 1 : 2,000	Through Hole	TO-92-3	5 V
LDO Voltage Regulators 12V 0.5A Positive LF120CDT-TR STMicroelectronics 1: HK$10.69 2,426In Stock	Mfr. Part No. LF120CDT-TR Mouser Part No 511-LF120CDT-TR	STMicroelectronics	LDO Voltage Regulators 12V 0.5A Positive Learn More about STMicroelectronics stm standard products	Datasheet	2,426In Stock	Cut Tape HK$10.69 HK$7.71 HK$6.98 HK$6.17 Reel HK$5.13 View HK$5.80 HK$5.56 HK$5.40 HK$5.01 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	TO-252-3	12 V
LDO Voltage Regulators 3.3V 0.5A Positive LF33ABDT-TR STMicroelectronics 1: HK$10.52 8,753In Stock 10,000Expected 2/8/2027	Mfr. Part No. LF33ABDT-TR Mouser Part No 511-LF33ABDT-TR	STMicroelectronics	LDO Voltage Regulators 3.3V 0.5A Positive Learn More about STMicroelectronics stm standard products	Datasheet	8,753In Stock 10,000Expected 2/8/2027	Cut Tape HK$10.52 HK$7.75 HK$6.95 HK$6.44 View Reel HK$5.50 HK$6.03 HK$5.80 HK$5.61 HK$5.50 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	TO-252-3	3.3 V
LDO Voltage Regulators 3.3V 500mA Positive LF33CV STMicroelectronics 1: HK$13.81 2,166In Stock 2,000Expected 31/5/2027	Mfr. Part No. LF33CV Mouser Part No 511-LF33CV	STMicroelectronics	LDO Voltage Regulators 3.3V 500mA Positive Learn More about STMicroelectronics stm standard products	Datasheet	2,166In Stock 2,000Expected 31/5/2027	HK$13.81 HK$9.95 HK$9.04 HK$7.96 View HK$7.46 HK$7.15 HK$6.34 HK$5.77 HK$5.41	Min.: 1 Mult.: 1	Through Hole	TO-220-3	3.3 V
LDO Voltage Regulators 5.0V 0.5A Positive LF50ABDT-TR STMicroelectronics 1: HK$8.96 5,657In Stock	Mfr. Part No. LF50ABDT-TR Mouser Part No 511-LF50ABDT-TR	STMicroelectronics	LDO Voltage Regulators 5.0V 0.5A Positive Learn More about STMicroelectronics stm standard products	Datasheet	5,657In Stock	Cut Tape HK$8.96 HK$6.51 HK$5.86 HK$5.15 Reel HK$4.26 View HK$4.82 HK$4.61 HK$4.46 HK$4.15 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	TO-252-3	5 V
LDO Voltage Regulators Single Gauge REG 0.45V 500mA 500uA LF50CV STMicroelectronics 1: HK$12.33 5,248In Stock	Mfr. Part No. LF50CV Mouser Part No 511-LF50CV	STMicroelectronics	LDO Voltage Regulators Single Gauge REG 0.45V 500mA 500uA Learn More about STMicroelectronics stm standard products	Datasheet	5,248In Stock	HK$12.33 HK$8.96 HK$7.82 HK$7.15 View HK$6.71 HK$6.44 HK$5.93 HK$5.77 HK$5.63	Min.: 1 Mult.: 1	Through Hole	TO-220-3	5 V
LDO Voltage Regulators 6.0V 0.5A Positive LF60CDT-TR STMicroelectronics 1: HK$10.28 9,745In Stock	Mfr. Part No. LF60CDT-TR Mouser Part No 511-LF60CDT-TR	STMicroelectronics	LDO Voltage Regulators 6.0V 0.5A Positive Learn More about STMicroelectronics stm standard products	Datasheet	9,745In Stock	Cut Tape HK$10.28 HK$7.60 HK$6.93 HK$6.20 Reel HK$5.47 View HK$5.84 HK$5.67 HK$5.65 HK$5.41 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	TO-252-3	6 V
LDO Voltage Regulators 8.0V 0.5A Positive LF80CDT-TR STMicroelectronics 1: HK$11.18 3,029In Stock	Mfr. Part No. LF80CDT-TR Mouser Part No 511-LF80CDT-TR	STMicroelectronics	LDO Voltage Regulators 8.0V 0.5A Positive Learn More about STMicroelectronics stm standard products	Datasheet	3,029In Stock	Cut Tape HK$11.18 HK$8.12 HK$7.37 HK$6.53 Reel HK$5.37 View HK$6.12 HK$5.99 HK$5.73 HK$5.26 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	TO-252-3	8 V
LDO Voltage Regulators 3.3V 200mA Linear LK112SM33TR STMicroelectronics 1: HK$8.22 3,828In Stock	Mfr. Part No. LK112SM33TR Mouser Part No 511-LK112SM33	STMicroelectronics	LDO Voltage Regulators 3.3V 200mA Linear Learn More about STMicroelectronics stm standard products	Datasheet	3,828In Stock	Cut Tape HK$8.22 HK$5.92 HK$5.34 HK$4.71 Reel HK$3.78 View HK$4.41 HK$4.22 HK$4.09 HK$3.70 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	3.3 V
LDO Voltage Regulators 5V 100mA Linear LK112SM50TR STMicroelectronics 1: HK$8.55 4,454In Stock	Mfr. Part No. LK112SM50TR Mouser Part No 511-LK112SM50	STMicroelectronics	LDO Voltage Regulators 5V 100mA Linear Learn More about STMicroelectronics stm standard products	Datasheet	4,454In Stock	Cut Tape HK$8.55 HK$6.10 HK$5.50 HK$4.84 Reel HK$3.96 View HK$4.53 HK$4.34 HK$4.22 HK$3.71 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	5 V
Linear Voltage Regulators 1.2-37V Adj Positive LM217LD13TR STMicroelectronics 1: HK$4.19 12,056In Stock 10,000Expected 1/3/2027	Mfr. Part No. LM217LD13TR Mouser Part No 511-LM217LD13TR	STMicroelectronics	Linear Voltage Regulators 1.2-37V Adj Positive Learn More about STMicroelectronics stm standard products	Datasheet	12,056In Stock 10,000Expected 1/3/2027	Cut Tape HK$4.19 HK$2.93 HK$2.64 HK$2.28 Reel HK$1.69 View HK$2.11 HK$2.01 HK$1.92 HK$1.65 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOIC-8	1.2 V to 37 V
Linear Voltage Regulators 1.2-37V Adj Positive LM217MDT-TR STMicroelectronics 1: HK$4.27 8,130In Stock 7,500Expected 2/9/2027	Mfr. Part No. LM217MDT-TR Mouser Part No 511-LM217MDT-TR	STMicroelectronics	Linear Voltage Regulators 1.2-37V Adj Positive Learn More about STMicroelectronics stm standard products	Datasheet	8,130In Stock 7,500Expected 2/9/2027	Cut Tape HK$4.27 HK$3.07 HK$2.79 HK$2.45 Reel HK$1.90 View HK$2.27 HK$2.17 HK$2.08 HK$1.87 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	TO-252	1.2 V to 37 V
Linear Voltage Regulators 1.2V to 37V ADJ Reg 1.5A 40V Dual Gauge LM217T-DG STMicroelectronics 1: HK$11.01 3,408In Stock	Mfr. Part No. LM217T-DG Mouser Part No 511-LM217T-DG	STMicroelectronics	Linear Voltage Regulators 1.2V to 37V ADJ Reg 1.5A 40V Dual Gauge Learn More about STMicroelectronics stm standard products	Datasheet	3,408In Stock	HK$11.01 HK$8.03 HK$6.81 HK$6.44 View HK$6.04 HK$5.80 HK$5.03 HK$5.02	Min.: 1 Mult.: 1	Through Hole	TO-220-3	1.2 V to 37 V
Current & Power Monitors & Regulators 3-Term Adjust Currnt LM234DT STMicroelectronics 1: HK$13.32 10,938In Stock	Mfr. Part No. LM234DT Mouser Part No 511-LM234D	STMicroelectronics	Current & Power Monitors & Regulators 3-Term Adjust Currnt Learn More about STMicroelectronics stm standard products	Datasheet	10,938In Stock	Cut Tape HK$13.32 HK$9.86 HK$9.04 HK$8.04 View Reel HK$6.54 HK$7.56 HK$7.19 HK$7.13 HK$6.54 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOIC-8
LDO Voltage Regulators VL drop volt reg LM2931AD33R STMicroelectronics 1: HK$8.06 7,702In Stock	Mfr. Part No. LM2931AD33R Mouser Part No 511-LM2931AD33R	STMicroelectronics	LDO Voltage Regulators VL drop volt reg Learn More about STMicroelectronics stm standard products	Datasheet	7,702In Stock	Cut Tape HK$8.06 HK$5.92 HK$5.38 HK$4.78 Reel HK$4.02 View HK$4.50 HK$4.34 HK$4.23 HK$3.93 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOIC-8	3.3 V
LDO Voltage Regulators 5.0V 0.1A Very Low LM2931AZ50R STMicroelectronics 1: HK$9.04 9,745In Stock	Mfr. Part No. LM2931AZ50R Mouser Part No 511-LM2931AZ50R	STMicroelectronics	LDO Voltage Regulators 5.0V 0.1A Very Low Learn More about STMicroelectronics stm standard products	Datasheet	9,745In Stock	Cut Tape HK$9.04 HK$6.55 HK$5.92 HK$5.22 Reel HK$4.20 View HK$4.89 HK$4.69 HK$4.58 HK$4.10	Min.: 1 Mult.: 1 : 2,000	Through Hole	TO-92-3	5 V
Linear Voltage Regulators 1.2 V to 37 V adjustable voltage regulators LM317BT STMicroelectronics 1: HK$6.58 9,289In Stock 8,000Expected 25/1/2027	Mfr. Part No. LM317BT Mouser Part No 511-LM317BT	STMicroelectronics	Linear Voltage Regulators 1.2 V to 37 V adjustable voltage regulators	Datasheet	9,289In Stock 8,000Expected 25/1/2027	HK$6.58 HK$4.62 HK$4.14 HK$3.62 View HK$3.37 HK$3.22 HK$3.09 HK$2.95 HK$2.88	Min.: 1 Mult.: 1	Through Hole	TO-220-3	1.2 V to 37 V
Linear Voltage Regulators Low current 1.2 to 37 V adjustable voltage regulator LM317LD13TR STMicroelectronics 1: HK$2.71 46,116In Stock	Mfr. Part No. LM317LD13TR Mouser Part No 511-LM317LD13TR	STMicroelectronics	Linear Voltage Regulators Low current 1.2 to 37 V adjustable voltage regulator Learn More about STMicroelectronics stm standard products	Datasheet	46,116In Stock	Cut Tape HK$2.71 HK$1.87 HK$1.67 HK$1.43 Reel HK$1.10 View HK$1.33 HK$1.25 HK$1.17 HK$1.06 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOIC-8	1.2 V to 37 V
Linear Voltage Regulators 1.2-37V Adj Positive LM317P STMicroelectronics 1: HK$13.81 3,154In Stock 22,000On Order	Mfr. Part No. LM317P Mouser Part No 511-LM317P	STMicroelectronics	Linear Voltage Regulators 1.2-37V Adj Positive Learn More about STMicroelectronics stm standard products	Datasheet	3,154In Stock 22,000On Order On Order Ship Dates Mfr. No: LM317P Stock: 3,154 Can Dispatch Immediately On Order: 11,000 Expected 2/6/2027 11,000 Expected 1/11/2027 Factory Lead Time: 30 Weeks	HK$13.81 HK$10.11 HK$8.63 HK$8.16 View HK$7.68 HK$7.39 HK$7.14 HK$6.89 HK$5.84	Min.: 1 Mult.: 1	Through Hole	TO-220-3	1.2 V to 37 V