ROHM BD9A300MUV | Demoboard BD9A300MUV | Würth Elektronik Reference Design Search

Overview

Topology	Buck Converter
Input voltage	2.7-5.5 V
Output 1	1.8 V / 3 A

Description

BD9A300MUV is a synchronous buck switching regulator with built-in low On-resistance power MOSFETs. It is capable of providing current up to 3A. The SLLM™ control provides excellent efficiency characteristics in light-load conditions which make the product ideal for equipment and devices that demand minimal standby power consumption. The oscillating frequency is high at 1MHz using a small value of inductance. It is a current mode control DC/DC converter and features high-speed transient response. Phase compensation can also be set easily.

Features

Synchronous Single DC/DC Converter
SLLM (Simple Light Load Mode) Control
Over Current Protection
Short Circuit Protection
Thermal Shutdown Protection
Under Voltage Lockout Protection
Adjustable Soft start Function
Power Good Output
VQFN016V3030 Package (Backside Heat Dissipation)

Typical applications

Step-down Power Supply for DSPs, FPGAs, Microprocessors, etc.
Distributed Power Supply, Secondary Power Supply
LCD TVs / Entertainment Devices
Laptop PCs/ Tablet PCs/ Servers / Storage Devices (HDDs/SSDs) / Printers, OA Equipment

More information

Products

Order Code	Datasheet	Downloads	Status	Product series	L (µH)	I_RP,40K (A)	I_SAT (A)	R_{DC max.} (mΩ)	f_res (MHz)	Size	Version	I_SAT,10% (A)	I_SAT,30% (A)	R_DC (mΩ)	Material	Mount
74477790015	SPEC	8 files EDA models: Components ZIP ALT WE-PD (rev22g).IntLib \| 2.8 MB ZUK CadStar_WE-PD (rev20a).zip \| 36.5 KB CDS Cadence_WE-PD (rev23a).zip \| 13.3 MB EAG Eagle_WE-PD (rev23a).lbr \| 296.9 KB CAD files ZIP IGS Download_WE-PD_7345R_IGS (rev1).igs \| 2.5 MB STP Download_WE-PD_7345R_STP (rev1).stp \| 752.5 KB Electric models ZIP PSP PSpice_WE-PD (rev24a).zip \| 57.5 KB SCS Spectre_WE-PD (rev24a).mod \| 77.7 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-PD SMT Power Inductor	1.5	6.4	–	18	75	7345	Robust	7.3	9	–	–	SMT
744310150	SPEC PCN pending Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. SPEC Datasheet valid to 05/02/2025 SPEC Datasheet valid from 06/02/2025	8 files EDA models: Components ZIP ALT WE-HCI (rev22c).IntLib \| 1.2 MB ZUK Download_CadStar_WE-HCI (rev19a).zip \| 15.7 KB CDS Cadence_WE-HCI (rev22a).zip \| 8.3 MB EAG Eagle_WE-HCI (rev19a).lbr \| 126.2 KB CAD files ZIP IGS WE-HCI_7030_744310 (rev1).igs \| 1.7 MB STP WE-HCI_7030_744310 (rev1).stp \| 538.1 KB Electric models ZIP PSP PSpice_WE-HCI (rev22a).zip \| 22.1 KB SCS Spectre_WE-HCI (rev24a).mod \| 26.8 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-HCI SMT Flat Wire High Current Inductor	1.5	9.6	–	13.97	80	7030	SMT	4.75	12	12.7	Superflux	SMT
744311150	SPEC PCN pending Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. SPEC Datasheet valid to 05/02/2025 SPEC Datasheet valid from 06/02/2025	8 files EDA models: Components ZIP ALT WE-HCI (rev22c).IntLib \| 1.2 MB ZUK Download_CadStar_WE-HCI (rev19a).zip \| 15.7 KB CDS Cadence_WE-HCI (rev22a).zip \| 8.3 MB EAG Eagle_WE-HCI (rev19a).lbr \| 126.2 KB CAD files ZIP IGS WE-HCI_7040_744311 (rev1).igs \| 1.8 MB STP WE-HCI_7040_744311 (rev1).stp \| 597.7 KB Electric models ZIP PSP PSpice_WE-HCI (rev22a).zip \| 22.1 KB SCS Spectre_WE-HCI (rev24a).mod \| 26.8 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-HCI SMT Flat Wire High Current Inductor	1.5	13.8	–	7.26	72	7040	SMT	4.5	14	6.6	Superflux	SMT
744314150	SPEC PCN pending Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. SPEC Datasheet valid to 05/02/2025 SPEC Datasheet valid from 06/02/2025	8 files EDA models: Components ZIP ALT WE-HCI (rev22c).IntLib \| 1.2 MB ZUK Download_CadStar_WE-HCI (rev19a).zip \| 15.7 KB CDS Cadence_WE-HCI (rev22a).zip \| 8.3 MB EAG Eagle_WE-HCI (rev19a).lbr \| 126.2 KB CAD files ZIP IGS WE-HCI_7050_744314 (rev1).igs \| 1.8 MB STP WE-HCI_7050_744314 (rev1).stp \| 589.1 KB Electric models ZIP PSP PSpice_WE-HCI (rev22a).zip \| 22.1 KB SCS Spectre_WE-HCI (rev24a).mod \| 26.8 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-HCI SMT Flat Wire High Current Inductor	1.5	16.4	–	4.73	110	7050	SMT	4	11	4.3	Superflux	SMT
74437346015	SPEC PCN pending Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. SPEC Datasheet PCN PCN document	8 files EDA models: Components ZIP ALT WE-LHMI (rev24b).IntLib \| 1 MB ZUK Download_CadStar_WE-LHMI (rev19a).zip \| 16.7 KB CDS Cadence_WE-LHMI (rev24a).zip \| 3.8 MB EAG Eagle_WE-LHMI (rev24b).lbr \| 192.3 KB CAD files ZIP IGS WE-LHMI_7030 (rev1).igs \| 886.9 KB STP WE-LHMI_7030 (rev1).stp \| 353.2 KB Electric models ZIP PSP PSpice_WE-LHMI (rev24b).zip \| 33.5 KB SCS Spectre_WE-LHMI (rev24a).mod \| 43.1 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-LHMI SMT Power Inductor	1.5	9.1	–	15	45	7030	–	11.2	27.6	–	–	SMT
74437349015	SPEC PCN pending Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. SPEC Datasheet PCN PCN document	8 files EDA models: Components ZIP ALT WE-LHMI (rev24b).IntLib \| 1 MB ZUK Download_CadStar_WE-LHMI (rev19a).zip \| 16.7 KB CDS Cadence_WE-LHMI (rev24a).zip \| 3.8 MB EAG Eagle_WE-LHMI (rev24b).lbr \| 192.3 KB CAD files ZIP IGS WE-LHMI_7050LHMI (rev1).igs \| 890.3 KB STP WE-LHMI_7050LHMI (rev1).stp \| 353.2 KB Electric models ZIP PSP PSpice_WE-LHMI (rev24b).zip \| 33.5 KB SCS Spectre_WE-LHMI (rev24a).mod \| 43.1 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-LHMI SMT Power Inductor	1.5	11.3	–	9	35	7050	SMT	9.7	18.7	–	–	SMT
7447783015	SPEC	8 files EDA models: Components ZIP ALT WE-PD (rev22g).IntLib \| 2.8 MB ZUK CadStar_WE-PD (rev20a).zip \| 36.5 KB CDS Cadence_WE-PD (rev23a).zip \| 13.3 MB EAG Eagle_WE-PD (rev23a).lbr \| 296.9 KB CAD files ZIP IGS Download_WE-PD_7332P_IGS (rev1).igs \| 1.4 MB STP Download_WE-PD_7332P_STP (rev1).stp \| 344.1 KB Electric models ZIP PSP PSpice_WE-PD (rev24a).zip \| 57.5 KB SCS Spectre_WE-PD (rev24a).mod \| 77.7 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-PD SMT Power Inductor	1.5	–	7.8	15	73	7332	Performance	–	–	–	–	SMT

	Order Code	Datasheet	Simulation
	74477790015	SPEC
	744310150	SPEC PCN pending Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. SPEC Datasheet valid to 05/02/2025 SPEC Datasheet valid from 06/02/2025
	744311150	SPEC PCN pending Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. SPEC Datasheet valid to 05/02/2025 SPEC Datasheet valid from 06/02/2025
	744314150	SPEC PCN pending Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. SPEC Datasheet valid to 05/02/2025 SPEC Datasheet valid from 06/02/2025
	74437346015	SPEC PCN pending Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. SPEC Datasheet PCN PCN document
	74437349015	SPEC PCN pending Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. SPEC Datasheet PCN PCN document
	7447783015	SPEC

Samples

	Order Code	Datasheet	Simulation	Downloads	Status	Product series	L (µH)	I_RP,40K (A)	I_SAT (A)	R_{DC max.} (mΩ)	f_res (MHz)	Size	Version	I_SAT,10% (A)	I_SAT,30% (A)	R_DC (mΩ)	Material	Mount	Samples

IC manufacturers (99)

ROHM BD9A300MUV | Demoboard BD9A300MUV

2.7V to 5.5V Input, Integrated 3A MOSFET 1ch Synchronous Buck DC/DC Converter

Overview

Description

Features

Typical applications

More information

Products

PCN pending

PCN pending

PCN pending

PCN pending

PCN pending

PCN pending

PCN pending

PCN pending

PCN pending

PCN pending

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