BD9731KV-E2 Rohm Semiconductor, BD9731KV-E2 Datasheet

BD9731KV-E2

Manufacturer Part Number

BD9731KV-E2

Description

IC CONTROL REG SW 5CH VQFP48 TR

Manufacturer

Rohm Semiconductor

Type

Step-Down (Buck), Step-Up (Boost)r

Datasheet

1.BD9731KV-E2.pdf (2 pages)

Specifications of BD9731KV-E2

Internal Switch(s)

Synchronous Rectifier

Number Of Outputs

Current - Output

30mA

Frequency - Switching

100kHz ~ 700kHz

Voltage - Input

2.8 ~ 11 V

Operating Temperature

-20°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

48-TQFP, 48-VQFP

Power - Output

900mW

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Voltage - Output

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

BD9731KV-E2

Manufacturer:

EVOXRIFA

Quantity:

188

Company:

Meier Automation Equipment Co., Limited

Part Number:

BD9731KV-E2

Manufacturer:

ROHM/罗姆

Quantity:

20 000

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∗Derating : 4.0mW/˚C for operation above Ta=25˚C (Only IC unit)

∗PCB (70mmx70mm, t=1.6mm) glass epoxy mounting. Derating : 9.0mW/˚C for operation above Ta=25˚C

Maximum applied voltage

Power dissipation

Operating temperature range

Storage temperature range

Power supply voltage

Oscillating frequency

Output current

BD9731KV is a PWM switching regulator controller IC.

The 5-channel (4 channel for step-up, and 1 channel for

step-down) switching regulator controllers are integrated

into a VQFP48 package. This IC can operate both Bipolar

and MOS transistor. Triangle wave oscillator, reference

voltage, PWM comparator, CMOS type driver, and short

protection circuit are integrated.

1) Can operate both external transistors of Bipolar and MOS.

2) Built-in output shutdown circuit (Timer latch) when overloaded.

3) Channel 1, and 5 can externally set the reference voltage.

4) Channel 1, 4, and 5 can control independently ON/OFF.

5) All channels have dead time control.

Digital still camera, Portable DVD player, W-CDMA, PDA, Digital movie camera

Description

Features

Applications

Absolute Maximum Ratings (Ta=25˚C)

Recommended Operating Conditions (Ta=25˚C)

(Base current can be set by resistance.)

Parameter

5-channel switching regulator controller

Symbol

IOUT

Symbol

fosc

Vmax

Topr

Tstg

BD9731KV

100

Min.

2.8

—

–0.3

–20

–55

Limits

400

900

Typ.

—

+85

+125

+12

∗

Max.

700

Unit

kHz

˚C

Dimension (Units : mm)

VQFP48

0.5

9.0±0.3

7.0±0.2

0.2±0. 1

May, 2001

0. 10

0. 15±0. 1

01W038A

Related parts for BD9731KV-E2

BD9731KV-E2 Summary of contents

Page 1

... Description BD9731KV is a PWM switching regulator controller IC. The 5-channel (4 channel for step-up, and 1 channel for step-down) switching regulator controllers are integrated into a VQFP48 package. This IC can operate both Bipolar and MOS transistor. Triangle wave oscillator, reference voltage, PWM comparator, CMOS type driver, and short protection circuit are integrated ...

Page 2

... Ireg=–1mA ~ ~ V VSCP1 5= VSCP=0V 1.5V MHz RT=24kΩ, CT=220pF V Io=10mA V Io=–10mA REG D VREGD 31 To-Divers PVCC1 Pch DRIVER 2 OUT1 1 RBIAS1 Pch DRIVER 4 OUT2 5 RBIAS2 PGND1 44 8 PVCC2 Pch DRIVER 7 OUT3 6 RBIAS3 9 Pch DRIVER OUT4 10 RBIAS4 13 RBIAS5 Nch DRIVER 12 OUT5 11 PGND2 BD9731KV ...

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