Voltage Regulators - Switching Regulators

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RP604 Buck-Boost DC-DC Converters

Nisshinbo RP604 Buck-Boost DC-DC Converters feature a minimum supply current and high efficiency at low loads. The series operates at a low operating quiescent current (0.3µA), making it ideal for wearable devices, applications for the Internet of Things (IoT), and wireless communications modules requiring a low level of current consumption to extend battery life. The converters provide up to 300mA in buck mode. In boost mode, the output current is less and related to the input voltage level. In order to reduce valuable circuit board space, the RP604 converters require only three external components. These devices are offered in compact WLCSP-20-P2 and DFN(PLP)2730-12 packages for design flexibility.

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Part #

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

RP604Z301A-E2-T
Nisshinbo
1: $2.97
3,734In Stock

Mfr. Part No.
RP604Z301A-E2-T

Mouser Part No
848-RP604Z301A-E2-F

Nisshinbo

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

Learn More

Datasheet

3,734In Stock

Cut Tape

$2.97

$2.20

$2.00

$1.79

View

Reel

$1.43

Min.: 1
Mult.: 1

: 5,000

SMD/SMT

WLCSP-20

Buck-Boost

3 V

300 mA

1 Output

300 nA

- 40 C

+ 85 C

RP604Z

Reel, Cut Tape

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

RP604K281A-TR
Nisshinbo
1: $2.82
901In Stock

Mfr. Part No.
RP604K281A-TR

Mouser Part No
848-RP604K281A-TR

Nisshinbo

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

Learn More

Datasheet

901In Stock

Cut Tape

$2.82

$2.09

$1.90

$1.70

View

Reel

$1.36

Min.: 1
Mult.: 1

: 5,000

SMD/SMT

DFN-2730-12

Buck-Boost

2.8 V

300 mA

1 Output

300 nA

- 40 C

+ 85 C

RP604K

Reel, Cut Tape

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

RP604Z411B-E2-T
Nisshinbo
1: $2.97
68In Stock

Mfr. Part No.
RP604Z411B-E2-T

Mouser Part No
848-RP604Z411BE2F

Nisshinbo

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

Learn More

Datasheet

68In Stock

Cut Tape

$2.97

$2.20

$2.00

$1.79

View

Reel

$1.43

Min.: 1
Mult.: 1

: 5,000

SMD/SMT

WLCSP-20

Buck-Boost

4.1 V

300 mA

1 Output

300 nA

- 40 C

+ 85 C

RP604Z

Reel, Cut Tape

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

RP604Z431B-E2-T
Nisshinbo
1: $2.97
87In Stock

Mfr. Part No.
RP604Z431B-E2-T

Mouser Part No
848-RP604Z431B-E2-F

Nisshinbo

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

Learn More

Datasheet

87In Stock

Cut Tape

$2.97

$2.20

$2.00

$1.79

View

Reel

$1.53

Min.: 1
Mult.: 1

: 5,000

SMD/SMT

WLCSP-20

Buck-Boost

4.3 V

300 mA

1 Output

300 nA

- 40 C

+ 85 C

RP604Z

Reel, Cut Tape

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

RP604Z501B-E2-T
Nisshinbo
1: $2.92
54In Stock

Mfr. Part No.
RP604Z501B-E2-T

Mouser Part No
848-RP604Z501B-E2-F

Nisshinbo

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

Learn More

Datasheet

54In Stock

Cut Tape

$2.92

$2.17

$1.97

$1.77

View

Reel

$1.46

Min.: 1
Mult.: 1

: 5,000

SMD/SMT

WLCSP-20

Buck-Boost

5 V

300 mA

1 Output

300 nA

- 40 C

+ 85 C

RP604Z

Reel, Cut Tape

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

RP604K301A-TR
Nisshinbo
1: $2.82
4,975Expected 24/8/2026

Mfr. Part No.
RP604K301A-TR

Mouser Part No
848-RP604K301A-TR

Nisshinbo

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

Learn More

Datasheet

4,975Expected 24/8/2026

Cut Tape

$2.82

$2.09

$1.90

$1.74

$1.38

Reel

$1.38

Min.: 1
Mult.: 1

: 5,000

SMD/SMT

DFN-2730-12

Buck-Boost

3 V

300 mA

1 Output

300 nA

- 40 C

+ 85 C

RP604K

Reel, Cut Tape

Switching Voltage Regulators (IQ =0.3 uA)

RP604K331A-TR
Nisshinbo
1: $2.78
5,000Expected 28/8/2026

Mfr. Part No.
RP604K331A-TR

Mouser Part No
848-RP604K331A-TR

Nisshinbo

Switching Voltage Regulators (IQ =0.3 uA)

Learn More

Datasheet

5,000Expected 28/8/2026

Cut Tape

$2.78

$2.06

$1.88

$1.68

View

Reel

$1.35

Min.: 1
Mult.: 1

: 5,000

SMD/SMT

DFN-2730-12

Buck-Boost

3.3 V

300 mA

1 Output

300 nA

- 40 C

+ 85 C

RP604K

Reel, Cut Tape

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

RP604K261A-TR
Nisshinbo
5,000: $1.38
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
RP604K261A-TR

Mouser Part No
848-RP604K261A-TR

Nisshinbo

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.38

Min.: 5,000
Mult.: 5,000

: 5,000

SMD/SMT

DFN-2730-12

Buck-Boost

2.6 V

300 mA

1 Output

300 nA

- 40 C

+ 85 C

RP604K

Reel

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

RP604K331B-TR
Nisshinbo
5,000: $1.38
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
RP604K331B-TR

Mouser Part No
848-RP604K331BTR

Nisshinbo

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.38

Min.: 5,000
Mult.: 5,000

: 5,000

SMD/SMT

DFN-2730-12

Buck-Boost

3.3 V

300 mA

1 Output

300 nA

- 40 C

+ 85 C

RP604K

Reel

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

RP604K361A-TR
Nisshinbo
5,000: $1.38
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
RP604K361A-TR

Mouser Part No
848-RP604K361ATR

Nisshinbo

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.38

Min.: 5,000
Mult.: 5,000

: 5,000

SMD/SMT

DFN-2730-12

Buck-Boost

3.6 V

300 mA

1 Output

300 nA

- 40 C

+ 85 C

RP604K

Reel

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

RP604K361B-TR
Nisshinbo
1: $2.82
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
RP604K361B-TR

Mouser Part No
848-RP604K361B-TR

Nisshinbo

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Cut Tape

$2.82

$2.09

$1.90

$1.74

$1.37

Reel

$1.34

Min.: 1
Mult.: 1

: 5,000

SMD/SMT

DFN-2730-12

Buck-Boost

3.6 V

300 mA

1 Output

300 nA

- 40 C

+ 85 C

RP604K

Reel, Cut Tape

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

RP604K501A-TR
Nisshinbo
5,000: $1.35
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
RP604K501A-TR

Mouser Part No
848-RP604K501A-TR

Nisshinbo

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.35

Min.: 5,000
Mult.: 5,000

: 5,000

SMD/SMT

DFN-2730-12

Buck-Boost

5 V

300 mA

1 Output

300 nA

- 40 C

+ 85 C

RP604K

Reel

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

RP604Z231B-E2-T
Nisshinbo
5,000: $1.53
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
RP604Z231B-E2-T

Mouser Part No
848-RP604Z231B-E2-F

Nisshinbo

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

Learn More

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

$1.53

Min.: 5,000
Mult.: 5,000

: 5,000

SMD/SMT

WLCSP-20

Buck-Boost

2.3 V

300 mA

1 Output

300 nA

- 40 C

+ 85 C

RP604Z

Reel

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

RP604Z251B-E2-T
Nisshinbo
5,000: $1.53
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
RP604Z251B-E2-T

Mouser Part No
848-RP604Z251B-E2-F

Nisshinbo

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

Learn More

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

$1.53

Min.: 5,000
Mult.: 5,000

: 5,000

SMD/SMT

WLCSP-20

Buck-Boost

2.5 V

300 mA

1 Output

300 nA

- 40 C

+ 85 C

RP604Z

Reel

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

RP604Z281B-E2-T
Nisshinbo
5,000: $1.53
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
RP604Z281B-E2-T

Mouser Part No
848-RP604Z281BE2F

Nisshinbo

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

Learn More

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

$1.53

Min.: 5,000
Mult.: 5,000

: 5,000

SMD/SMT

WLCSP-20

Buck-Boost

2.8 V

300 mA

1 Output

300 nA

- 40 C

+ 85 C

RP604Z

Reel

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

RP604Z331B-E2-T
Nisshinbo
5,000: $1.53
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
RP604Z331B-E2-T

Mouser Part No
848-RP604Z331BE2F

Nisshinbo

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

Learn More

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

$1.53

Min.: 5,000
Mult.: 5,000

: 5,000

SMD/SMT

WLCSP-20

Buck-Boost

3.3 V

300 mA

1 Output

300 nA

- 40 C

+ 85 C

RP604Z

Reel

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

RP604Z341B-E2-T
Nisshinbo
5,000: $1.43
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
RP604Z341B-E2-T

Mouser Part No
848-RP604Z341B-E2-F

Nisshinbo

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

Learn More

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

$1.43

Min.: 5,000
Mult.: 5,000

: 5,000

SMD/SMT

WLCSP-20

Buck-Boost

3.4 V

300 mA

1 Output

300 nA

- 40 C

+ 85 C

RP604Z

Reel

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

RP604Z501B-E2-F
Nisshinbo
5,000: $1.40
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
RP604Z501B-E2-F

Mouser Part No
513-RP604Z501B-E2-F

Nisshinbo

Switching Voltage Regulators Ultra-low Quiescent Current (IQ = 0.3 uA), 300 mA, Buck-Boost DC/DC Converter

Learn More

Datasheet

Non-Stocked Lead-Time 16 Weeks

Cut Tape

$1.40

Min.: 5,000
Mult.: 5,000

SMD/SMT

WLCSP-20

Buck-Boost

5 V

300 mA

1 Output

300 nA

- 40 C

+ 85 C

RP604Z

Reel

RP604 Buck-Boost DC-DC Converters

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