bd9150muv ROHM Co. Ltd., bd9150muv Datasheet

bd9150muv

Manufacturer Part Number

bd9150muv

Description

Output 1.5a Or Less High Efficiency Step-down Switching Regulator With Built-in Power Mosfet

Manufacturer

ROHM Co. Ltd.

Datasheet

1.BD9150MUV.pdf (17 pages)

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1-chip built-in FET type Switching Regulator Series

Output 1.5A or Less High Efficiency

Step-down Switching Regulator

with Built-in Power MOSFET

BD9150MUV

●Description

●Features

●Use

●Absolute Maximum Rating (Ta=25℃)

● Operating Conditions (Ta=-40～+85℃)

＊6

＊1

＊2

＊3

＊4

＊5

Vcc Voltage

EN Voltage

SW Voltage

Power Dissipation

Operating Temperature Range

Storage Temperature Range

Maximum Junction Temperature

EN Voltage

Output Voltage range

SW Average Output Current

Vcc Voltage

Power supply for LSI including DSP, Micro computer and ASIC

ROHM’s high efficiency dual step-down switching regulator BD9150MUV is a 2ch output power supply designed to produce

a low voltage including 3.3,1.2 volts from 5.0 volts power supply line. Offers high efficiency with our original pulse skip

control technology and synchronous rectifier. Employs a current mode control system to provide faster transient response

to sudden change in load.

Pd and ASO should not be exceeded.

10) Employs small surface mount package : VQFN020V4040

1) Offers fast transient response with current mode PWM control system.

5) Incorporates soft-start function.

6) Incorporates ULVO functions.

7) Incorporates thermal protection and short-current protection circuit with time delay function.

8) Incorporates shutdown function Icc=0μA(Typ.)

9) Output current max 1.5A/1.5A.

2) Offers highly efficiency for all load range with synchronous rectifier (Pch/Nch FET) and SLLM (Simple Light Load

3) 2ch output power supply.

Pd should not be exceeded.

IC only

1-layer. mounted on a 74.2mm×74.2mm×1.6mm glass-epoxy board, occupied area by copper foil : 10.29mm

4-layer. mounted on a 74.2mm×74.2mm×1.6mm glass-epoxy board, occupied area by copper foil : 10.29mm

4-layer. mounted on a 74.2mm×74.2mm×1.6mm glass-epoxy board, occupied area by copper foil : 5505mm

Mode)

Parameter

Symbol

TECHNICAL NOTE

OUT

Symbol

Tjmax

Topr

Tstg

Pd1

Pd2

Pd3

Pd4

SW1

SW2

EN2

EN1

Min.

4.75

0.8

-0.3～+7 *

-55～+150

-40～+85

-0.3～+7

0.70 *

1.21 *

0.34*

3.56*

+150

Limit

4) Each of EN controls 2ch output.

Typ.

5.0

Unit

℃

Max.

1.5*

5.5

2.5

Unit

, in each layers

Sep. 2008

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