MPNHarborRFQ 0
R1273L031A-E2 representative package visual — not an exact-product photograph
Representative package visual — not an exact-product photographProduct referenceVendor-delivered DigiKey product/package image
Exact MPN18 sourced attributes1 source document

Nisshinbo Micro Devices Inc. · exact orderable part

R1273L031A-E2

IC REG BUCK ADJ QFN0505-32B

Function
Step-Down
Topology
Buck
Voltage - Input (Min)
4V
Voltage - Input (Max)
34V
Voltage - Output (Min/Fixed)
3.15V
Output Type
Adjustable
Frequency - Switching
250kHz ~ 1MHz
Synchronous Rectifier
Yes
Base Product Number
R1273
Original manufacturerCommercial terms confirmed per lot
ManufacturerNisshinbo Micro Devices Inc.
Package / case32-PowerVFQFN
Mounting typeSurface Mount
PackingTape & Reel (TR) Cut Tape (CT) Digi-Reel®

Technical parameters

Technical specifications

18 normalized values · 1 validated source

Report a data issue
ParameterValue
Base Product NumberR1273 [1]
Frequency - Switching250kHz ~ 1MHz [1]
FunctionStep-Down [1]
MfrNisshinbo Micro Devices Inc. [1]
Mounting TypeSurface Mount [1]
Number of Outputs1 [1]
Operating Temperature-40°C ~ 105°C (TA) [1]
Output ConfigurationPositive [1]
Output TypeAdjustable [1]
Product StatusActive [1]
SeriesR1273L [1]
Synchronous RectifierYes [1]
TopologyBuck [1]
Voltage - Input (Max)34V [1]
Voltage - Input (Min)4V [1]
Voltage - Output (Min/Fixed)3.15V [1]
Voltage - Output (Max)5.3V [1]
Package / Case32-PowerVFQFN [1]
Specification references[1]Nisshinbo Micro Devices Inc. R1273L031A-E2 vendor product record ↗

Catalog relationships

Keep family and exact MPN intent separate.

This page describes one orderable part. A family page helps select suffixes but never carries assumed stock or a price.

ManufacturerNisshinbo Micro Devices Inc.View brand page →CategoryVoltage Regulators - DC DC Switching RegulatorsView category page →

Related exact parts

Other published parts

Browse exact MPNs and compare their specifications. These links do not imply compatibility or interchangeability.

111-4188PBF111-4189PBF111-4190PBF21-004221-004321-0066PBF78ST235HC88SR112HDA5970AD
R1273L031A-E2 Nisshinbo Micro Devices Inc. Datasheet, Specs and RFQ | MPNHarbor