bd9876efj ROHM Co. Ltd., bd9876efj Datasheet

bd9876efj

Manufacturer Part Number

bd9876efj

Description

Flexible Step-down Switching Regulator With Built-in Power Mosfet

Manufacturer

ROHM Co. Ltd.

Datasheet

1.BD9876EFJ.pdf (17 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

bd9876efj-E2

Manufacturer:

Quantity:

12 000

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Single-chip Type with Built-in FET Switching Regulators

Flexible Step-down

Switching Regulator

with Built-in Power MOSFET

●Description

●Features

●Applications

●Absolute Maximum Rating

●Operating Conditions (Ta=25℃)

www.rohm.com

BD9876EFJ

Output 3.0A and below High Efficiency Rate Step-down Switching Regulator Power MOSFET Internal Type BD9876EFJ

mainly used as secondary side Power supply, for example from fixed Power supply of 12V, 24V etc, Step-down Output of

1.2V/1.8V/3.3V/5V, etc, can be produced. This IC has external Coil/Capacitor down-sizing through 300kHz Frequency

operation, inside Nch-FET SW for 45V “withstand-pressure” commutation and also, high speed load response through

Current Mode Control is a simple external setting phase compensation system, through a wide range external constant, a

compact Power supply can be produced easily.

For Household machines in general that have 12V/24V Lines, etc.

VCC-GND Supply Voltage

BST-GND Voltage

BST-Lx Voltage

EN-GND Voltage

Lx-GND Voltage

FB-GND Voltage

VC-GND Voltage

SYNC-GND Voltage

High-side FET Drain Current

Power Dissipation

Operating Temperature

Storage Temperature

Junction Temperature

(*1)During mounting of 70×70×1.6t mm 4layer board (Copper area: 70mm×70mm).Reduce by 30.08mW for every 1℃ increase. (Above 25℃)

Power Supply Voltage

Output Voltage

(*2)Restricted by minimum on pulse typ. 200ns

1) Internal 200 mΩ Nch MOSFET

2) Output Current 3A

3) Oscillation Frequency 300kHz

4) Synchronizes to External Clock ( 200kHz～500kHz )

5) Feedback Voltage 1.0V±1.0%

6) Internal Soft Start Function

7) Internal Over Current Protect Circuit, Low Input Error Prevention Circuit, Heat Protect Circuit

8) ON/OFF Control through EN Pin (Standby Current 0 A Typ.)

9) Package: HTSOP-J8 Package

Parameter

⊿VBST

Symbol

SYNC

Tjmax

VOUT

VBST

VCC

VEN

VCC

VFB

Topr

VLX

Tstg

IDH

1.0

1/16

Min.

(*2)

-40～+105

-55～+150

Ratings

3.76

+150

Typ.

3.5

－

(*1)

VCC×0.7

Max.

Unit

℃

2011.07 - Rev.B

No.11027EBT58

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