Product Information

BD9D321EFJ-E2

BD9D321EFJ-E2 electronic component of ROHM

Datasheet
ROHM Semiconductor Voltage Regulators - Switching Regulators
Manufacturer: ROHM
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges



Price (USD)

1: USD 0.7774 ea
Line Total: USD 0.78

19417 - Global Stock
Ships to you between
Thu. 30 May to Mon. 03 Jun
MOQ: 1  Multiples: 1
Pack Size: 1

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1576 - WHS 1


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Fri. 31 May to Wed. 05 Jun

MOQ : 1
Multiples : 1
1 : USD 0.6425
10 : USD 0.5056
30 : USD 0.4451
100 : USD 0.3726
500 : USD 0.3385
1000 : USD 0.3202

19417 - WHS 2


Ships to you between Thu. 30 May to Mon. 03 Jun

MOQ : 1
Multiples : 1
1 : USD 0.7774
10 : USD 0.644
100 : USD 0.5002
500 : USD 0.4335
1000 : USD 0.36
2500 : USD 0.3266
5000 : USD 0.3174
10000 : USD 0.3162
25000 : USD 0.3071

7236 - WHS 3


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MOQ : 59
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100 : USD 0.5475
200 : USD 0.5192
500 : USD 0.4844
1000 : USD 0.4544
2500 : USD 0.4173

970 - WHS 4


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MOQ : 132
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250 : USD 0.7281

1508 - WHS 5


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MOQ : 132
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132 : USD 0.7429
250 : USD 0.7281

2405 - WHS 6


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MOQ : 132
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250 : USD 0.7281

Read More Specifications

     
Manufacturer
Product Category
RoHS - XON
Icon ROHS
Mounting Style
Package / Case
Output Current
Number of Outputs
Input Voltage MAX
Topology
Input Voltage MIN
Switching Frequency
Minimum Operating Temperature
Maximum Operating Temperature
Series
Packaging
Brand
Input Voltage
Operating Temperature Range
Type
Shutdown
Cnhts
Hts Code
Mxhts
Product Type
Factory Pack Quantity :
Subcategory
Supply Voltage - Min
Taric
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Additional Infomation About Product

Datasheet 4.5V to 18V Input, 3.0A Integrated MOSFET 1ch Synchronous Buck DC/DC Converter BD9D321EFJ General Description Key Specifications BD9D321EFJ is a synchronous buck switching regulator Input Voltage Range: 4.5V to 18.0 V with built-in low on-resistance power MOSFETs. It is Output Voltage Setting Range: 0.765V to 7V TM capable of providing current of up to 3 A. The SLLM (V 0.07)V to (V 0.65)V IN IN control provides excellent efficiency characteristics in Output Current: 3 A (Max) light-load conditions which make the product appropriate Switching Frequency: 700 kHz (Typ) for equipment and devices that demand minimal standby High Side MOSFET On-Resistance:100 m (Typ) power consumption. External phase compensation circuit Low Side MOSFET On-Resistance: 70 m (Typ) is not necessary for it is a constant on-time control DC/DC Standby Current: 2 A (Typ) converter with high speed response. Package W (Typ) x D (Typ) x H (Max) Features HTSOP-J8 4.90mm x 6.00mm x 1.00mm Synchronous Single DC/DC Converter Constant On-time Control TM SLLM (Simple Light Load Mode) Control Over Current Protection Short Circuit Protection Thermal Shutdown Protection Under Voltage Lockout Protection Adjustable Soft Start HTSOP-J8 Package (Backside Heat Dissipation) Applications Step-down Power Supply for DSPs, FPGAs, Microprocessors, etc. Set-top Box LCD TVs HTSOP-J8 DVD / Blu-ray Player / Recorder Entertainment Devices Typical Application Circuit Figure 1. Typical Application Circuit Product structure: Silicon monolithic integrated circuit This product has no designed protection against radioactive rays. www.rohm.co.jp TSZ02201-0J3J0AC00490-1-2 2013 ROHM Co., Ltd. All rights reserved. 1/25 TSZ2211114001 29.Jan.2015 Rev.002DatasheetDatasheet BD9D321EFJ Pin Configuration (TOP VIEW) EN 1 8 VIN FB BOOT 2 7 SW VREG 3 6 4 5 GND SS Figure 2. Pin Assignment Pin Descriptions Terminal Symbol Function No. Turning this terminal signal low level (0.3 V or lower) forces the device to enter the shutdown 1 EN mode. Turning this terminal signal high level (2.2 V or higher) enables the device. This terminal must be terminated. An inverting input terminal of comparator which compares with reference voltage (V ). REF 2 FB Refer to page.17 for how to calculate the resistance of the output voltage setting. Power supply voltage terminal inside IC. 3 VREG Voltage of 5.25V (Typ) is outputted with more than 2.2V is impressed to EN terminal. Connect 1F ceramic capacitor to ground. Terminal for setting the soft start time. The rise time of the output voltage can be specified by 4 SS connecting a capacitor to this terminal. Refer to page.17 for how to calculate the capacitance. 5 GND Ground terminal for the output stage of the switching regulator and the control circuit Switch node. This terminal is connected to the source of the high-side MOSFET and drain of the low-side MOSFET. Connect a bootstrap capacitor of 0.1F between this terminal and 6 SW BOOT terminal. In addition, connect an inductor considering the direct current superimposition characteristic. Connect a bootstrap capacitor of 0.1F between this terminal and SW terminal. 7 BOOT The voltage of this capacitor is the gate drive voltage of the high-side MOSFET. Power supply terminal for the switching regulator. 8 VIN Connecting a 20F(10F2) and 0.1F ceramic capacitor to ground is recommended. A backside heat dissipation pad. Connecting to the internal PCB ground plane by using - FIN multiple via provides excellent heat dissipation characteristics. www.rohm.co.jp TSZ02201-0J3J0AC00490-1-2 2013 ROHM Co., Ltd. All rights reserved. 2/25 TSZ22111 15 001 29.Jan.2015 Rev.002

HS Compliance

Tariff Desc

8542.31.00 51 No ..Application Specific (Digital) Integrated Circuits (ASIC)

Electronic integrated circuits: Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits
Monolithic integrated circuits:

ROHM may also be referenced as

LAPIS Semiconductor
RHE
RHM
ROHM Semicon
ROHM Semiconductor

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