Voltage Regulators - Switching Regulators

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RP605 Buck-Boost DC-DC Converters

Nisshinbo RP605 Buck-Boost DC-DC Converters feature an integrated battery monitor function and an ultra-low quiescent current. Optimized for low-power IoT applications, the Nisshinbo RP605 DC-DC Converters have a battery monitor pin, which makes it possible to construct a low-supply current and high-accuracy battery monitoring circuit with a small number of external components. This design enables a reduction in the size of IoT devices and reduces the supply current required. With a typical quiescent current of 0.4μA (DC-DC: 0.3µA, Battery monitor: 0.1μA), the RP605 can prolong battery life, contributing to the long operation of battery-powered IoT devices.

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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	Minimum Operating Temperature	Maximum Operating Temperature	Series	Packaging
Switching Voltage Regulators 3.3V 300mA Ultra Low Power Buck Boost RP605K333B-TR Nisshinbo 1: $2.14 3,211In Stock 5,000Expected 11/5/2026	Mfr. Part # RP605K333B-TR Mouser Part # 848-RP605K333B-TR	Nisshinbo	Switching Voltage Regulators 3.3V 300mA Ultra Low Power Buck Boost Learn More about Nisshinbo ricoh rp605 dcdc converters	Datasheet	3,211In Stock 5,000Expected 11/5/2026	Cut Tape $2.14 $1.58 $1.44 $1.33 $1.06 Reel $1.05	Min.: 1 Mult.: 1 : 5,000	SMD/SMT	DFN-12	3.3 V	300 mA	1 Output	- 40 C	+ 85 C	RP605K	Reel, Cut Tape
Switching Voltage Regulators 300mA Ultra-low Power Buck Boost DC/DC Converter with Battery Monitor RP605Z333B-E2-T Nisshinbo 1: $2.25 7,756In Stock	Mfr. Part # RP605Z333B-E2-T Mouser Part # 848-RP605Z333B-E2-F	Nisshinbo	Switching Voltage Regulators 300mA Ultra-low Power Buck Boost DC/DC Converter with Battery Monitor Learn More about Nisshinbo ricoh rp605 dcdc converters	Datasheet	7,756In Stock	Cut Tape $2.25 $1.66 $1.52 $1.36 View Reel $1.12 $1.28 $1.24 $1.20 $1.17 $1.12	Min.: 1 Mult.: 1 : 5,000	SMD/SMT	WLCSP-20	3.3 V	300 mA	1 Output	- 40 C	+ 85 C	RP605Z	Reel, Cut Tape
Switching Voltage Regulators 300mA Ultra-low Power Buck Boost DC/DC Converter with Battery Monitor RP605Z253B-E2-T Nisshinbo 1: $2.26 2,593In Stock	Mfr. Part # RP605Z253B-E2-T Mouser Part # 848-RP605Z253B-E2-F	Nisshinbo	Switching Voltage Regulators 300mA Ultra-low Power Buck Boost DC/DC Converter with Battery Monitor Learn More about Nisshinbo ricoh rp605 dcdc converters	Datasheet	2,593In Stock	Cut Tape $2.26 $1.67 $1.52 $1.36 View Reel $1.12 $1.28 $1.24 $1.20 $1.17 $1.12	Min.: 1 Mult.: 1 : 5,000	SMD/SMT	WLCSP-20	2.5 V	300 mA	1 Output	- 40 C	+ 85 C	RP605Z	Reel, Cut Tape
Switching Voltage Regulators 2.0V 300mA Ultra Low Power Buck Boost RP605K203B-TR Nisshinbo 1: $2.14 1,292In Stock	Mfr. Part # RP605K203B-TR Mouser Part # 848-RP605K203B-TR	Nisshinbo	Switching Voltage Regulators 2.0V 300mA Ultra Low Power Buck Boost Learn More about Nisshinbo ricoh rp605 dcdc converters	Datasheet	1,292In Stock	Cut Tape $2.14 $1.58 $1.44 $1.29 View Reel $1.04 $1.21 $1.17 $1.12 $1.05 $1.04	Min.: 1 Mult.: 1 : 5,000	SMD/SMT	DFN-12	2 V	300 mA	1 Output	- 40 C	+ 85 C	RP605K	Reel, Cut Tape
Switching Voltage Regulators 300mA Ultra-low Power Buck Boost DC/DC Converter with Battery Monitor RP605Z283B-E2-T Nisshinbo 1: $2.26 977In Stock	Mfr. Part # RP605Z283B-E2-T Mouser Part # 848-RP605Z283B-E2-F	Nisshinbo	Switching Voltage Regulators 300mA Ultra-low Power Buck Boost DC/DC Converter with Battery Monitor Learn More about Nisshinbo ricoh rp605 dcdc converters	Datasheet	977In Stock	Cut Tape $2.26 $1.67 $1.52 $1.36 View Reel $1.12 $1.28 $1.24 $1.20 $1.17 $1.12	Min.: 1 Mult.: 1 : 5,000	SMD/SMT	WLCSP-20	2.8 V	300 mA	1 Output	- 40 C	+ 85 C	RP605Z	Reel, Cut Tape
Switching Voltage Regulators 300mA Ultra-low Power Buck Boost DC/DC Converter with Battery Monitor RP605Z334A-E2-T Nisshinbo 1: $2.25 340In Stock	Mfr. Part # RP605Z334A-E2-T Mouser Part # 848-RP605Z334A-E2-F	Nisshinbo	Switching Voltage Regulators 300mA Ultra-low Power Buck Boost DC/DC Converter with Battery Monitor Learn More about Nisshinbo ricoh rp605 dcdc converters	Datasheet	340In Stock	Cut Tape $2.25 $1.67 $1.52 $1.36 View Reel $1.12 $1.28 $1.24 $1.22 $1.20 $1.12	Min.: 1 Mult.: 1 : 5,000	SMD/SMT	WLCSP-20	3.3 V	300 mA	1 Output	- 40 C	+ 85 C	RP605Z	Reel, Cut Tape
Switching Voltage Regulators 300mA Ultra-low Power Buck Boost DC/DC Converter with Battery Monitor RP605Z253B-E2-F Nisshinbo 5,000: $1.08 Non-Stocked Lead-Time 16 Weeks	Mfr. Part # RP605Z253B-E2-F Mouser Part # 513-RP605Z253B-E2-F	Nisshinbo	Switching Voltage Regulators 300mA Ultra-low Power Buck Boost DC/DC Converter with Battery Monitor Learn More about Nisshinbo ricoh rp605 dcdc converters	Datasheet	Non-Stocked Lead-Time 16 Weeks	Cut Tape $1.08	Min.: 5,000 Mult.: 5,000	SMD/SMT	WLCSP-20	2.5 V	300 mA	1 Output	- 40 C	+ 85 C	RP605Z	Reel
Switching Voltage Regulators 300mA Ultra-low Power Buck Boost DC/DC Converter with Battery Monitor RP605Z283B-E2-F Nisshinbo 5,000: $1.08 Non-Stocked Lead-Time 16 Weeks	Mfr. Part # RP605Z283B-E2-F Mouser Part # 513-RP605Z283B-E2-F	Nisshinbo	Switching Voltage Regulators 300mA Ultra-low Power Buck Boost DC/DC Converter with Battery Monitor Learn More about Nisshinbo ricoh rp605 dcdc converters	Datasheet	Non-Stocked Lead-Time 16 Weeks	Cut Tape $1.08	Min.: 5,000 Mult.: 5,000	SMD/SMT	WLCSP-20	2.8 V	300 mA	1 Output	- 40 C	+ 85 C	RP605Z	Reel
Switching Voltage Regulators 300mA Ultra-low Power Buck Boost DC/DC Converter with Battery Monitor RP605Z304A-E2-F Nisshinbo 5,000: $1.08 Non-Stocked Lead-Time 16 Weeks	Mfr. Part # RP605Z304A-E2-F Mouser Part # 513-RP605Z304A-E2-F	Nisshinbo	Switching Voltage Regulators 300mA Ultra-low Power Buck Boost DC/DC Converter with Battery Monitor Learn More about Nisshinbo ricoh rp605 dcdc converters	Datasheet	Non-Stocked Lead-Time 16 Weeks	Cut Tape $1.08	Min.: 5,000 Mult.: 5,000	SMD/SMT	WLCSP-20	3 V	300 mA	1 Output	- 40 C	+ 85 C	RP605Z	Reel
Switching Voltage Regulators 300mA Ultra-low Power Buck Boost DC/DC Converter with Battery Monitor RP605Z333B-E2-F Nisshinbo 1: $2.26 Non-Stocked Lead-Time 16 Weeks	Mfr. Part # RP605Z333B-E2-F Mouser Part # 513-RP605Z333B-E2-F	Nisshinbo	Switching Voltage Regulators 300mA Ultra-low Power Buck Boost DC/DC Converter with Battery Monitor Learn More about Nisshinbo ricoh rp605 dcdc converters	Datasheet	Non-Stocked Lead-Time 16 Weeks	Cut Tape $2.26 $1.67 $1.52 $1.11 $1.08	Min.: 1 Mult.: 1	SMD/SMT	WLCSP-20	3.3 V	300 mA	1 Output	- 40 C	+ 85 C	RP605Z	Reel
Switching Voltage Regulators 300mA Ultra-low Power Buck Boost DC/DC Converter with Battery Monitor RP605Z183B-E2-T Nisshinbo 5,000: $1.12 Non-Stocked Lead-Time 16 Weeks	Mfr. Part # RP605Z183B-E2-T Mouser Part # 848-RP605Z183B-E2-F	Nisshinbo	Switching Voltage Regulators 300mA Ultra-low Power Buck Boost DC/DC Converter with Battery Monitor Learn More about Nisshinbo ricoh rp605 dcdc converters	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel $1.12	Min.: 5,000 Mult.: 5,000 : 5,000	SMD/SMT	WLCSP-20	1.8 V	300 mA	1 Output	- 40 C	+ 85 C	RP605Z	Reel
Switching Voltage Regulators 300mA Ultra-low Power Buck Boost DC/DC Converter with Battery Monitor RP605Z304A-E2-T Nisshinbo 5,000: $1.09 Non-Stocked	Mfr. Part # RP605Z304A-E2-T Mouser Part # 848-RP605Z304A-E2-F	Nisshinbo	Switching Voltage Regulators 300mA Ultra-low Power Buck Boost DC/DC Converter with Battery Monitor Learn More about Nisshinbo ricoh rp605 dcdc converters	Datasheet	Non-Stocked	Reel $1.09	Min.: 5,000 Mult.: 5,000 : 5,000	SMD/SMT	WLCSP-20	3 V	300 mA	1 Output	- 40 C	+ 85 C	RP605Z	Reel

RP605 Buck-Boost DC-DC Converters

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