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BD2671MWV-E2

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ROHM Semicon DC-DC Converters, QFN-68-EP(8x8). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BD2671MWV-E2

ROHM Semicon · DC-DC Converters · QFN-68-EP(8x8)

BD2671MWV-E2 from ROHM Semicon, in a QFN-68-EP(8x8). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VDDQ_PWM output VDDQ PWM output for an external driver, operating at the 5V (VSYS_V5A_1) level.
2 DDR_SEL0 input Configuration pin setting the VDDQ and LDO_VPP nominal voltage level and Boot/OFF sequence, 5V level from VSYS_V5A_0.
3 VTT_FBP input VDDQ_VTT sense feedback input, nominal VDDQ/2.
4 VSYS_V5A_1 power_in 5V power supply for VDDQ and VDDQ_VTT.
5 VTT_VIN power_in VDDQ_VTT Vin input, supplied from VDDQ.
6 VTT0 power_out VDDQ_VTT output, nominal VDDQ/2.
7 VTT1 power_out VDDQ_VTT output, nominal VDDQ/2.
8 V1P8A_VIN0 power_in V1P8A Vin input, 5V level.
9 V1P8A_VIN1 power_in V1P8A Vin input, 5V level.
10 V1P8A_LX0 output V1P8A switch node, connected to V1P8A_VIN.
11 V1P8A_LX1 output V1P8A switch node, connected to V1P8A_VIN.
12 DDR_SEL1 input Configuration pin setting the VDDQ and LDO_VPP nominal voltage level and Boot/OFF sequence, 5V level from VSYS_V5A_0.
13 V1P8A_FBP input V1P8A sense feedback input, nominal 1.8V.
14 LDO_VPP_VIN power_in LDO_VPP Vin input, supplied from V3P3A.
15 LDO_VPP power_out LDO_VPP output, 1.8V or 2.5V automatically selected by the DDR_SEL pin configuration.
16 LDO_VPP_FBP input LDO_VPP sense feedback input.
17 DDR_SEL2 input Configuration pin setting the VDDQ and LDO_VPP nominal voltage level and Boot/OFF sequence, 5V level from VSYS_V5A_0.
18 PCH_PWROK output Open-drain output asserted when all PMIC rail power are good, 5V tolerant.
19 RSMRST_B output Open-drain always-ON rail power good output, 5V tolerant.
20 SLP_S0_B input Power state control input, 5V tolerant.
21 SLP_S3_B input Power state control input, 5V tolerant.
22 SLP_S4_B input Power state control input, 5V tolerant.
23 V1P2A_LX0 output V1P2A switch node, connected to V1P2A_VIN.
24 V1P2A_LX1 output V1P2A switch node, connected to V1P2A_VIN.
25 V1P2A_VIN0 power_in V1P2A Vin input, 5V level.
26 V1P2A_VIN1 power_in V1P2A Vin input, 5V level.
27 V1P2A_FBP input V1P2A sense feedback input, nominal 1.20V.
28 GND0 power_in Analog ground.
29 VDD_V1P8A power_in 1.8V input pin, supplied from V1P8A; also the 5V-tolerant reference for several control pins.
30 LDO15 power_out Power supply for PMIC internal use, nominal 1.5V.
31 VSYS_V5A_0 power_in 5V power supply for PMIC reference.
32 EXTMODE input Configuration pin for VNN and VCCGI external mode, 5V level from VSYS_V5A_0.
33 PMIC_EN input PMIC enable input, 5V level from VSYS_V5A_0.
34 THERMTRIP_B input Thermal shutdown input, 5V tolerant.
35 PROCHOT_B output Open-drain output indicating PMIC thermal events, 5V tolerant.
36 DATA bidirectional I2C data line, 5V tolerant.
37 CLK input I2C clock input, 5V tolerant.
38 IRQ_B output Open-drain active-low PMIC interrupt output, 5V tolerant.
39 TEST0 input Test pin for PMIC, tie to GND or leave open.
40 VCCRAM_LX00 output VCCRAM switch node 0, connected to VCCRAM_VIN.
41 VCCRAM_LX01 output VCCRAM switch node 0, connected to VCCRAM_VIN.
42 VCCRAM_VIN0 power_in VCCRAM Vin input, 5V level.
43 VCCRAM_VIN1 power_in VCCRAM Vin input, 5V level.
44 VCCRAM_LX10 output VCCRAM switch node 1, connected to VCCRAM_VIN.
45 VCCRAM_LX11 output VCCRAM switch node 1, connected to VCCRAM_VIN.
46 GND1 power_in Analog ground.
47 VCCRAM_FBP input VCCRAM sense feedback input, nominal 1.05V.
48 VCCGI_DRVEN output VCCGI output to enable external driver, 5V level from VSYS_V5A_2.
49 VCCGI_PWM output VCCGI PWM output for external driver, 5V level from VSYS_V5A_2.
50 VSYS_V5A_2 power_in 5V power supply for VCCGI.
51 VCCGI_CSP input VCCGI positive current sense input, 5V level.
52 VCCGI_CSN input VCCGI negative current sense input, 5V level.
53 VCCGI_VOS input VCCGI output voltage sense input.
54 VCCGI_FBP input VCCGI positive feedback input.
55 VCCGI_FBN input VCCGI negative feedback input.
56 VNN_FBP input VNN sense feedback input, referenced to the VDDQ level.
57 VSYS input System voltage detection and voltage sense input, rated 21V.
58 VNN_LX00 output VNN switch node 0, connected to VNN_VIN.
59 VNN_LX01 output VNN switch node 0, connected to VNN_VIN.
60 VNN_VIN0 power_in VNN VIN input, 5V level.
61 VNN_VIN1 power_in VNN VIN input, 5V level.
62 VNN_LX10 output VNN switch node 1, connected to VNN_VIN.
63 VNN_LX11 output VNN switch node 1, connected to VNN_VIN.
64 GND2 power_in Analog ground.
65 VDDQ_FBP input VDDQ sense feedback input.
66 VDDQ_CSN input VDDQ negative current sense input, 5V level.
67 VDDQ_CSP input VDDQ positive current sense input, 5V level.
68 VDDQ_DRVEN output VDDQ output to enable external driver, 5V level from VSYS_V5A_1.
69 PGND power_in Power ground.

Key specifications

Parameter Value
Manufacturer ROHM Semicon
Package QFN-68-EP(8x8)
Category Power Management (PMIC)
Pins 69

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Voltage range in PIN VSYS VCC1 -0.3 28 V 13
Voltage range in PINs VSYS_V5A_0/1/2, VNN_VIN0/1, VCCRAM_VIN0/1, V1P8A_VIN0/1, V1P2A_VIN0/1, VTT_VIN, LDO_VPP_VIN VCC2 -0.3 6 V 13
Voltage range in PIN VDD_V1P8A VCC3 -0.3 3.6 V 13
Voltage range in PIN LDO15 VCC4 -0.3 2.1 V 13
Voltage range in PINs VNN_LX, VCCRAM_LX, V1P8A_LX, V1P2A_LX (switch nodes) VLX -1 7 V DC (min -2.0 V for 10ns) 13
Voltage range in PINs DDR_SEL0/1/2, PROCHOT_B, VTT, VTT_FBP, SLP_S0_B, SLP_S3_B, SLP_S4_B, LDO_VPP, PMIC_EN, EXTMODE, CLK, DATA, THERMTRIP_B, VCCGI_VOS/CSN/CSP/PWM/DRVEN, VDDQ_CSN/CSP/PWM/DRVEN, IRQ_B, PCH_PWROK, RSMRST_B VPIN1 -0.3 6 V 13
Voltage range in PINs VNN_FBP, VCCGI_FBP, VCCGI_FBN, VCCRAM_FBP, V1P8A_FBP, V1P2A_FBP, VDDQ_FBP VPIN2 -0.3 2.1 V 13
Maximum Junction Temperature Tjmax 150 ºC 13
Storage Temperature Tstg -50 150 ºC 13
VSYS Supply Voltage VSYS 5.4 12.6 21 V 14
VSYS_V5A Supply Voltage VSYS_V5A 4.5 5 5.25 V 14
VDD_V1P8A Supply Voltage VDD_V18 1.71 1.8 1.89 V 14
VPP_VIN Supply Voltage VPP_VIN 3.1 3.3 3.6 V 14
Operating Temperature Range TOPR -40 25 85 °C 14
PMIC POR Detect Voltage VUVLODT 3.8 3.9 4 V VSYS_V5A_0=Sweep down 17
VSYS UVLO Detect Voltage VVDETDT 5.265 5.4 5.535 V VSYS=Sweep down 17
VNN Output Voltage VO1_B1 1.039 1.05 1.061 V VID=1.05V, PWM mode 21
VNN Ripple Voltage VRP_B1 5 21 mVP-P PFM mode, IOUT=10mA 21
VNN Transient Droop Voltage 1 VDRP_B1 42 mV TR=1000ns, IOUT=1500mA to 5000mA 21
VNN Transient Overshoot Voltage 1 VOVS_B1 42 mV TF=1000ns, IOUT=5000mA to 1500mA 21
VNN Maximum Output Current IMAX_B1 5000 mA 21
VNN Output Voltage Slew Rate SRB1 2.5 3.125 3.75 mV/μs VOUT=20% to 80%; BUCK1_VID=0.5V to 1.05V and 1.05V to 0.5V 21
VCCGI Output Voltage VO1_B2 0.99 1 1.01 V VID=1.00V, PWM mode 24
VCCGI Output Voltage Slew Rate SRB2 2.5 3.125 3.75 mV/μs VOUT=20% to 80% of Target Voltage; BUCK2_VID=0.5V to 1.00V and 1.00V to 0.5V 24
VCCGI Maximum Output Current IMAX_B2 25 A VCCGI_LIMSEL[2:0]=100 24
VCCRAM Output Voltage 1 VO1_B3 1.039 1.05 1.061 V PWM mode, BUCK3_VID[1:0]=11 26
VCCRAM Output Voltage 2 VO2_B3 1.089 1.1 1.111 V PWM mode, BUCK3_VID[1:0]=00 26
VCCRAM Output Voltage 3 VO3_B3 1.064 1.075 1.086 V PWM mode, BUCK3_VID[1:0]=01 26
VCCRAM Output Voltage 4 VO4_B3 0.99 1 1.01 V PWM mode, BUCK3_VID[1:0]=10 26
VCCRAM Transient Droop Voltage 1 VDRP_B3 42 mV Slew Rate=2.5A/μs, IOUT=900mA to 5000mA 26
VCCRAM Transient Overshoot Voltage 1 VOVS_B3 42 mV Slew Rate=2.5A/μs, IOUT=5000mA to 900mA 26
VCCRAM Maximum Output Current IMAX_B3 5000 mA 26
V1P8A Output Voltage 1 VO1_B4 1.782 1.8 1.818 V PWM mode, BUCK4_VID[1:0]=11 28
V1P8A Output Voltage 2 VO2_B4 1.861 1.88 1.899 V PWM mode, BUCK4_VID[1:0]=00 28
V1P8A Output Voltage 3 VO3_B4 1.831 1.85 1.869 V PWM mode, BUCK4_VID[1:0]=01 28
V1P8A Output Voltage 4 VO4_B4 1.811 1.83 1.849 V PWM mode, BUCK4_VID[1:0]=10 28
V1P8A Transient Droop Voltage 1 VDRP_B4 72 mV Slew Rate=2.5A/μs, IOUT=450mA to 3000mA 28
V1P8A Transient Overshoot Voltage 1 VOVS_B4 72 mV Slew Rate=2.5A/μs, IOUT=3000mA to 450mA 28
V1P8A Maximum Output Current IMAX_B4 3000 mA 28
V1P2A Output Voltage 1 VO1_B5 1.227 1.24 1.253 V PWM mode, BUCK5_VID[1:0]=10 30
V1P2A Output Voltage 2 VO2_B5 1.089 1.1 1.111 V PWM mode, BUCK5_VID[1:0]=00 30
V1P2A Output Voltage 3 VO3_B5 1.138 1.15 1.162 V PWM mode, BUCK5_VID[1:0]=01 30
V1P2A Output Voltage 4 VO4_B5 1.188 1.2 1.212 V PWM mode, BUCK5_VID[1:0]=11 30
V1P2A Transient Droop Voltage 1 VDRP_B5 48 mV Slew Rate=2.5A/μs, IOUT=750mA to 2500mA 30
V1P2A Transient Overshoot Voltage 1 VOVS_B5 48 mV Slew Rate=2.5A/μs, IOUT=2500mA to 750mA 30
V1P2A Maximum Output Current IMAX_B5 2500 mA 30
VDDQ Output Voltage 1 VO1_B6 1.188 1.2 1.212 V PWM mode, DDR_SEL2,1,0=(LLL), (LHH), (HLL), (HHH) 33
VDDQ Output Voltage 2 VO2_B6 1.337 1.35 1.364 V PWM mode, DDR_SEL2,1,0=(LLH), (HLH) 33
VDDQ Output Voltage 3 VO3_B6 1.089 1.1 1.111 V PWM mode, DDR_SEL2,1,0=(LHL), (HHL) 33
VDDQ Transient Droop Voltage 1 VDRP_B6 48 mV Slew Rate=2.5A/μs, IOUT=2100mA to 7000mA 33
VDDQ Transient Overshoot Voltage 1 VOVS_B6 48 mV Slew Rate=2.5A/μs, IOUT=7000mA to 2100mA 33
VDDQ Maximum Output Current IMAX_B6 7 A VDDQ_LIMSEL[2:0]=001 33
VDDQ_VTT Output Voltage 1 VO1_VTT 0.588 0.6 0.612 V DDR_SEL2,1,0=(LLL), (LHH), (HLL), (HHH) (VDDQ_FBP=1.200V) 33
VDDQ_VTT Output Voltage 2 VO2_VTT 0.662 0.675 0.688 V DDR_SEL2,1,0=(LLH), (HLH) (VDDQ_FBP=1.350V) 33
VDDQ_VTT Transient Droop Voltage 1 VDRP_VTT 18 mV Slew Rate=2.5A/μs, IOUT=150mA to 600mA, -600mA to -150mA 33
VDDQ_VTT Transient Overshoot Voltage 1 VOVS_VTT 18 mV Slew Rate=2.5A/μs, IOUT=600mA to 150mA, -150mA to -600mA 33
VDDQ_VTT Maximum Output Current IMAX_VTT -600 600 mA 33
LDO_VPP Output Voltage 1 VO1_VPP 1.782 1.8 1.818 V DDR_SEL2,1,0=(LLL), (LHL), (HLL), (HLH) and (HHL), Io=1mA 35
LDO_VPP Output Voltage 2 VO2_VPP 2.475 2.5 2.525 V DDR_SEL2,1,0=(LHH) and (HHH), Io=1mA 35
LDO_VPP Maximum Output Current IMAX_VPP 1000 mA 35

CAD (KiCad official)

  • Symbol: BD2671MWV-E2
  • Footprint: Package_DFN_QFN:QFN-68-1EP_8x8mm_P0.4mm_EP5.2x5.2mm
  • 3D model: QFN-68-EP(8x8) (KiCad packages3D, STEP)
  • 3D model files: bd2671mwv-e2-etched.step / bd2671mwv-e2-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bd2671mwv-e2.step / bd2671mwv-e2.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: ROHM Semicon datasheet (89 pp, sha256 9434fe5ad9fc2ab0, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF