ROHM BD9B207NF

Overview

Topology	Buck Converter
Input voltage	2.7-5.5 V
Output 1	4 V / 2 A
IC revision	001

Description

BD9B207NF-Z is one of the BD9Bx07NF-Z series of single synchronous buck DC/DC converter with built-in low on-resistance power MOSFETs. It can provide current up to 2 A. The output voltage can achieve a high accuracy due to ±1 % reference voltage. It features fast transient response due to constant on-time control system. The Forced PWM Mode control reduces the output voltage ripple in the whole load range. Power Good function makes it possible for system to control sequence. It achieves the high-power density and offer a small footprint on the PCB by employing 6 pins 1.5 mm x 1.5 mm small package.

Features

Single Synchronous Buck DC/DC Converter
Constant On-time Control
Forced PWM Mode Control
±1 % Reference Voltage Accuracy
100 % Duty Cycle
Power Good Output
Output Discharge Function
Over Voltage Protection (OVP)
Over Current Protection (OCP)
Short Circuit Protection (SCP)
Thermal Shutdown Protection (TSD)
Under Voltage Lockout Protection (UVLO)

Typical applications

Step-down Power Supply for SoC, FPGA, and Microprocessor, Distributed Power Supply, Secondary Power Supply
Printer, OA Equipment, Laptop PC / Tablet PC / Server, Storage Device (HDD / SSD)
Video Surveillance

More information

Products

Order Code	Datasheet	Downloads	Status	Product series	L (µH)	I_R (A)	I_SAT1 (A)	I_SAT2 (A)	R_{DC max.} (mΩ)	f_res (MHz)	Version	I_SAT (A)	I_RP,40K (A)	I_SAT,30% (A)	R_{DC typ.} (mΩ)	V_OP (V)	Mount
744383210047	SPEC	10 files EDA models: Components ZIP ALT WE-MAPI (rev24b).IntLib \| 596.5 KB ZUK Cadstar_WE-MAPI (rev20a).zip \| 15.9 KB CDS Cadence_WE-MAPI (rev24b).zip \| 2.3 MB EAG Eagle_WE-MAPI (rev24b).lbr \| 193.1 KB KIC KiCad_WE-MAPI (rev24b).zip \| 745.1 KB CAD files ZIP 3D 3D_WE-IndMAPI_SSMC-25xx_3D (rev1).pdf \| 13 KB IGS WE-MAPI_2506 (rev1).igs \| 49.4 KB STP WE-MAPI_2506 (rev1).stp \| 36 KB Electric models ZIP PSP PSpice_WE-MAPI (rev24a).zip \| 31.1 KB SCS Spectre_WE-MAPI (rev24a).mod \| 41 KB Download all 10 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-MAPI SMT Power Inductor	0.47	2.2	–	–	95	165	SMT	3.7	3.25	4.65	76	80	SMT
744383220047	SPEC	10 files EDA models: Components ZIP ALT WE-MAPI (rev24b).IntLib \| 596.5 KB ZUK Cadstar_WE-MAPI (rev20a).zip \| 15.9 KB CDS Cadence_WE-MAPI (rev24b).zip \| 2.3 MB EAG Eagle_WE-MAPI (rev24b).lbr \| 193.1 KB KIC KiCad_WE-MAPI (rev24b).zip \| 745.1 KB CAD files ZIP 3D 3D_WE-IndMAPI_SSMC-25xx_3D (rev1).pdf \| 13 KB IGS WE-MAPI_2508 (rev1).igs \| 49.4 KB STP WE-MAPI_2508 (rev1).stp \| 36 KB Electric models ZIP PSP PSpice_WE-MAPI (rev24a).zip \| 31.1 KB SCS Spectre_WE-MAPI (rev24a).mod \| 41 KB Download all 10 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-MAPI SMT Power Inductor	0.47	2.25	–	–	87	160	SMT	4.4	3.35	5.65	70	80	SMT
744383230047	SPEC	10 files EDA models: Components ZIP ALT WE-MAPI (rev24b).IntLib \| 596.5 KB ZUK Cadstar_WE-MAPI (rev20a).zip \| 15.9 KB CDS Cadence_WE-MAPI (rev24b).zip \| 2.3 MB EAG Eagle_WE-MAPI (rev24b).lbr \| 193.1 KB KIC KiCad_WE-MAPI (rev24b).zip \| 745.1 KB CAD files ZIP 3D 3D_WE-IndMAPI_SSMC-25xx_3D (rev1).pdf \| 13 KB IGS WE-MAPI_2510 (rev1).igs \| 49.3 KB STP WE-MAPI_2510 (rev1).stp \| 36 KB Electric models ZIP PSP PSpice_WE-MAPI (rev24a).zip \| 31.1 KB SCS Spectre_WE-MAPI (rev24a).mod \| 41 KB Download all 10 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-MAPI SMT Power Inductor	0.47	3.2	–	–	48	170	SMT	5.5	4.8	6.9	37	80	SMT
744383240047	SPEC	10 files EDA models: Components ZIP ALT WE-MAPI (rev24b).IntLib \| 596.5 KB ZUK Cadstar_WE-MAPI (rev20a).zip \| 15.9 KB CDS Cadence_WE-MAPI (rev24b).zip \| 2.3 MB EAG Eagle_WE-MAPI (rev24b).lbr \| 193.1 KB KIC KiCad_WE-MAPI (rev24b).zip \| 745.1 KB CAD files ZIP 3D 3D_WE-IndMAPI_SSMC-25xx_3D (rev1).pdf \| 13 KB IGS WE-MAPI_2512 (rev1).igs \| 49.3 KB STP WE-MAPI_2512 (rev1).stp \| 35.9 KB Electric models ZIP PSP PSpice_WE-MAPI (rev24a).zip \| 31.1 KB SCS Spectre_WE-MAPI (rev24a).mod \| 41 KB Download all 10 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-MAPI SMT Power Inductor	0.47	3.4	–	–	40	145	SMT	6.25	5.35	8	30	80	SMT
74479287147	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 Altium_WE-PMCI (rev22e).IntLib \| 86.5 KB ZUK Cadstar_WE-PMCI (rev19a).zip \| 14.8 KB CDS Cadence_WE-PMCI (rev22a).zip \| 524.6 KB EAG Eagle_WE-PMCI (rev23a).lbr \| 55.8 KB CAD files ZIP IGS Download_IGS_WE-PMCI-1008 (rev1).igs \| 25.4 KB STP Download_STP_WE-PMCI-1008 (rev1).stp \| 29 KB Electric models ZIP PSP PSpice_WE-PMCI (rev22a).zip \| 6.5 KB SCS Spectre_WE-PMCI (rev24a).mod \| 7.1 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-PMCI Power Molded Chip Inductor	0.47	7.35	3.6	7.4	29	150	Standard	5	7.35	–	25	–	SMT
74479288147	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 Altium_WE-PMCI (rev22e).IntLib \| 86.5 KB ZUK Cadstar_WE-PMCI (rev19a).zip \| 14.8 KB CDS Cadence_WE-PMCI (rev22a).zip \| 524.6 KB EAG Eagle_WE-PMCI (rev23a).lbr \| 55.8 KB CAD files ZIP IGS Download_IGS_WE-PMCI-1008HS (rev1).igs \| 25.4 KB STP Download_STP_WE-PMCI-1008HS (rev1).stp \| 29 KB Electric models ZIP PSP PSpice_WE-PMCI (rev22a).zip \| 6.5 KB SCS Spectre_WE-PMCI (rev24a).mod \| 7.1 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-PMCI Power Molded Chip Inductor	0.47	10	3.75	7.9	22	140	High Saturation Current	6	10	–	18	–	SMT
744050240047	SPEC	9 files EDA models: Components ZIP ALT Altium_WE-LQSH (rev22d).IntLib \| 289 KB ZUK Download_CadStar_WE-LQSH (rev19a).zip \| 9.3 KB CDS Cadence_WE-LQSH (rev22a).zip \| 1.6 MB EAG Eagle_WE-LQSH (rev24a).lbr \| 36.5 KB CAD files ZIP 3D Download_3D_WE-LQSH-2512 (rev1).pdf \| 468.8 KB IGS Download_IGS_WE-LQSH-2512 (rev1).igs \| 977.3 KB STP Download_WE-LQSH-2512_STP (rev1).stp \| 503.6 KB Electric models ZIP PSP PSpice_WE-LQSH (rev22a).zip \| 6.8 KB SCS Spectre_WE-LQSH (rev24a).mod \| 7.2 KB Download all 9 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-LQSH SMT High Saturation Power Inductor	0.47	2.9	–	–	35	129	–	5.6	–	–	29	–	SMT

	Order Code	Datasheet	Simulation
	744383210047	SPEC
	744383220047	SPEC
	744383230047	SPEC
	744383240047	SPEC
	74479287147	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
	74479288147	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
	744050240047	SPEC

Samples

	Order Code	Datasheet	Simulation	Downloads	Status	Product series	L (µH)	I_R (A)	I_SAT1 (A)	I_SAT2 (A)	R_{DC max.} (mΩ)	f_res (MHz)	Version	I_SAT (A)	I_RP,40K (A)	I_SAT,30% (A)	R_{DC typ.} (mΩ)	V_OP (V)	Mount	Samples

IC manufacturers (99)

Overview

Description

Features

Typical applications

More information

Products

PCN pending

PCN pending

PCN pending

PCN pending

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