LDO Voltage Regulators – Mouser Mexico

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LDQ40 250mA Low-Dropout (LDO) Voltage Regulator

STMicroelectronics LDQ40 250mA Low-Dropout (LDO) Voltage Regulator is a high-accuracy voltage regulator that provides 250mA of current. It is available in a SOT23 5L, DFN 2x2 6L package to maximize space saving. The device is stabilized with a small ceramic capacitor on the output. The low drop, low quiescent current, and short-circuit protection make the LDQ40 suitable for low-power battery-operated applications.

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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 250 mA low dropout LDO LDQ40PU33R STMicroelectronics 1: $1.25 5,349In Stock New Product	Mfr. Part # LDQ40PU33R Mouser Part # 511-LDQ40PU33R New Product	STMicroelectronics	LDO Voltage Regulators 250 mA low dropout LDO Learn More about STMicroelectronics st ldq40 ldo voltage regulator	Datasheet	5,349In Stock	Cut Tape $1.25 $0.896 $0.807 $0.711 Reel $0.584 View $0.664 $0.637 $0.618 $0.571	Min.: 1 Mult.: 1 : 3,000		DFN-6	3.3 V	250 mA	1 Output	Positive	200 uA	60 dB	Fixed	- 40 C	+ 150 C	500 mV		LDQ40	Reel, Cut Tape
LDO Voltage Regulators 250 mA low dropout LDO LDQ40PU50R STMicroelectronics 1: $1.25 820In Stock New Product	Mfr. Part # LDQ40PU50R Mouser Part # 511-LDQ40PU50R New Product	STMicroelectronics	LDO Voltage Regulators 250 mA low dropout LDO Learn More about STMicroelectronics st ldq40 ldo voltage regulator	Datasheet	820In Stock	Cut Tape $1.25 $0.896 $0.807 $0.711 Reel $0.576 View $0.664 $0.637 $0.618 $0.567	Min.: 1 Mult.: 1 : 3,000		DFN-6	5 V	250 mA	1 Output	Positive	200 uA	60 dB	Fixed	- 40 C	+ 150 C	500 mV		LDQ40	Reel, Cut Tape
LDO Voltage Regulators 250 mA low dropout LDO LDQ40PU25RY STMicroelectronics 1: $1.38 2,989In Stock	Mfr. Part # LDQ40PU25RY Mouser Part # 511-LDQ40PU25RY	STMicroelectronics	LDO Voltage Regulators 250 mA low dropout LDO Learn More about STMicroelectronics st ldq40 ldo voltage regulator	Datasheet	2,989In Stock	Cut Tape $1.38 $0.995 $0.898 $0.793 Reel $0.645 View $0.742 $0.711 $0.693 $0.632 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	5 V	250 mA	1 Output	Positive	90 uA	55 dB	Fixed	- 40 C	+ 150 C	500 mV	AEC-Q100	LDQ40	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 250 mA Low dropout LDO LDQ40PUR STMicroelectronics 1: $1.25 4,376In Stock	Mfr. Part # LDQ40PUR Mouser Part # 511-LDQ40PUR	STMicroelectronics	LDO Voltage Regulators 250 mA Low dropout LDO Learn More about STMicroelectronics st ldq40 ldo voltage regulator	Datasheet	4,376In Stock	Cut Tape $1.25 $0.897 $0.809 $0.711 Reel $0.597 View $0.666 $0.637 $0.618 $0.571 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6		200 mA	1 Output	Positive	2 uA	65 dB	Adjustable	- 40 C	+ 150 C	700 mV	AEC-Q100	LDQ40	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 250 mA low dropout LDO LDQ40PU18RY STMicroelectronics 1: $1.33 2,416In Stock 3,000Expected 5/28/2027	Mfr. Part # LDQ40PU18RY Mouser Part # 511-LDQ40PU18RY	STMicroelectronics	LDO Voltage Regulators 250 mA low dropout LDO Learn More about STMicroelectronics st ldq40 ldo voltage regulator	Datasheet	2,416In Stock 3,000Expected 5/28/2027	Cut Tape $1.33 $0.962 $0.871 $0.793 Reel $0.64 View $0.742 $0.711 $0.693 $0.631 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	5 V	250 mA	1 Output	Positive	90 uA	55 dB	Fixed	- 40 C	+ 150 C	500 mV	AEC-Q100	LDQ40	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 250 mA low dropout LDO LDQ40PU33RY STMicroelectronics 1: $1.38 1,708In Stock 6,000On Order	Mfr. Part # LDQ40PU33RY Mouser Part # 511-LDQ40PU33RY	STMicroelectronics	LDO Voltage Regulators 250 mA low dropout LDO Learn More about STMicroelectronics st ldq40 ldo voltage regulator	Datasheet	1,708In Stock 6,000On Order On Order Ship Dates Mfr. #: LDQ40PU33RY Stock: 1,708 Can Ship Immediately On Order: 3,000 Expected 12/7/2026 3,000 Expected 12/28/2026 Factory Lead-Time: 30 Weeks	Cut Tape $1.38 $0.995 $0.898 $0.793 Reel $0.645 View $0.742 $0.711 $0.693 $0.634	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	3.3 V	250 mA	1 Output	Positive	500 uA	55 dB	Fixed	- 40 C	+ 150 C	500 mV	AEC-Q100	LDQ40	Reel, Cut Tape
LDO Voltage Regulators 250 mA low dropout LDO LDQ40PU50RY STMicroelectronics 1: $1.29 2,855In Stock	Mfr. Part # LDQ40PU50RY Mouser Part # 511-LDQ40PU50RY	STMicroelectronics	LDO Voltage Regulators 250 mA low dropout LDO Learn More about STMicroelectronics st ldq40 ldo voltage regulator	Datasheet	2,855In Stock	Cut Tape $1.29 $0.943 $0.858 $0.766 Reel $0.668 View $0.742 $0.711 $0.706 $0.625 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	5 V	250 mA	1 Output	Positive	90 uA	55 dB	Fixed	- 40 C	+ 150 C	500 mV	AEC-Q100	LDQ40	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 250 mA Low dropout LDO LDQ40PURY STMicroelectronics 1: $1.38 2,230In Stock	Mfr. Part # LDQ40PURY Mouser Part # 511-LDQ40PURY	STMicroelectronics	LDO Voltage Regulators 250 mA Low dropout LDO Learn More about STMicroelectronics st ldq40 ldo voltage regulator	Datasheet	2,230In Stock	Cut Tape $1.38 $0.995 $0.898 $0.793 Reel $0.645 View $0.742 $0.711 $0.686 $0.633 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6		200 mA	1 Output	Positive	2 uA	65 dB	Adjustable	- 40 C	+ 150 C	700 mV	AEC-Q100	LDQ40	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 250 mA low dropout LDO LDQ40MRY STMicroelectronics 3,000: $0.589 Non-Stocked New Product	Mfr. Part # LDQ40MRY Mouser Part # 511-LDQ40MRY New Product	STMicroelectronics	LDO Voltage Regulators 250 mA low dropout LDO Learn More about STMicroelectronics st ldq40 ldo voltage regulator	Datasheet	Non-Stocked	Reel $0.589 $0.573	Min.: 3,000 Mult.: 3,000 : 3,000														LDQ40	Reel

LDQ40 250mA Low-Dropout (LDO) Voltage Regulator

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LDQ40 250mA Low-Dropout (LDO) Voltage Regulator

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