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www.rohm.com

2010.04 - Rev.B

© 2010 ROHM Co., Ltd. All rights reserved.

Single-chip Type with Built-in FET Switching Regulators

Low Noise High Efficiency

Step-down Switching Regulator

with Built-in Power MOSFET

BD8960NV

●

Description

ROHM’s high efficiency step-down switching regulator BD8960NV is a power supply designed to produce a low voltage

including 1 volts from 5.5/3.3 volts power supply line. Offers high efficiency with synchronous rectifier. Employs a current

mode control system to provide faster transient response to sudden change in load.

●

Features

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

2) Offers highly efficiency for all load range with synchronous rectifier (Nch/Pch FET)

3) Incorporates soft-start function.

4) Incorporates thermal protection and ULVO functions.

5) Incorporates short-current protection circuit with time delay function.

6) Incorporates shutdown function

7) Employs small surface mount package : SON008V5060

●

Applications

Power supply for LSI including DSP, Micro computer and ASIC

●

Line up

Parameter

Symbol

Limits

Unit

VCC Voltage

1

V

PVCC Voltage

1

V

EN Voltage

-0.3～+7

V

SW,ITH Voltage

-0.3～+7

V

Power Dissipation 1

Pd1

2

mW

Power Dissipation 2

Pd2

3

mW

Operating temperature range

Topr

-25 ~ +105

℃

Storage temperature range

Tstg

-5 ~ +150

℃

Maximum junction temperature

Tjmax

+150

℃

＊

1

Pd should not be exceeded.

＊

2

Derating in done 7.2mW/℃ for temperatures above Ta=25℃, Mounted on 70mm×70mm×1.6mm Glass Epoxy PCB.

＊

3

Derating in done 31.2mW/℃ for temperatures above Ta=25℃, Mounted on JESD51-7.

●

Operating Conditions (Ta=25℃)

Parameter

Symbol

Limits

Unit

Min.

Typ.

Max.

*4

2.7

*5

3.3

5.5

V

*4

2.7

*5

3.3

5.5

V

EN Voltage

0

-

VCC

V

SW average output current

Isw

*4

-

-

2.0

A

Output voltage Setting Range

1.0

-

2.5

V

＊

4

Pd should not be exceeded.

＊

5

In case set output voltage 1.6V or more, VccMin. = Vout + 1.3V.

No.10027EBT21