PCMB065T-2R2MS datasheet(6/47 Pages) IRF

6 / 47 page

Dual output, 4A/Phase, Highly Integrated SupIRBuck

Single-Input Voltage, Synchronous Buck Regulator

IR3891

www.irf.com

May 08, 2013

ELECTRICAL SPECIFICATIONS

RECOMMENDED OPERATING CONDITIONS

SYMBOL

DEFINITION

MIN

MAX

UNIT

PVin

Input Bus Voltage *

1.0

Vin

Supply Voltage

5.0

VCC

Supply Voltage **

4.5

7.5

Boot to SW

Supply Voltage

4.5

7.5

Output Voltage

0.5

0.86 * PVin

Output Current

A / Phase

Switching Frequency

300

1500

kHz

Junction Temperature

-40

125

°C

SW1/2 node must not exceed 25V

When VCC is connected to an externally regulated supply, also connect Vin.

ELECTRICAL CHARACTERISTICS

Unless otherwise specified, these specifications apply over, 6.8V < Vin=PVin < 21V in 0°C < TJ < 125°C.

Typical values are specified at Ta = 25°C.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNIT

Power Stage

Power Losses

PLOSS

Vin = 12V, Vout1 = 1.8V,

Vout2 = 1.2V, IO =

4A/phase, Fs = 600kHz,

L1 =2.2uH, L2=1.5uH,

Note 4

1.38

Top Switch

Rds(on)_Top

VBoot - Vsw= 5.3V, IO =

4A, Tj = 25°C

27.5

36.4

mΩ

Bottom Switch

Rds(on)_Bot

Vcc = 5.3V, IO = 4A, Tj =

25°C

19.5

24.2

Bootstrap Diode

Forward Voltage

I(Boot) = 10mA

300

450

SW Leakage Current

ISW

SW = 0V, Enable = 0V

µA

SW = 0V, Enable = high,

VSeq = 0V

µA

Dead Band Time

Tdb

Note 4

Supply Current

VIN Supply Current

(standby)

Iin(Standby)

EN = Low, No Switching

100

175

µA

VIN Supply Current

(dynamic)

Iin(Dyn)

EN = High, Fs = 600kHz,

12.0

VCC LDO Output

Output Voltage

Vcc

Vin(min) = 6.8V, Io = 0-

60mA, Cload = 2.2uF

5.3

5.6

VCC Dropout

Vcc_drop

Icc = 60mA, Cload =

2.2uF

0.75

PCMB065T-2R2MS датащи(PDF) 6 Page - International Rectifier

PCMB065T-2R2MS датащи(HTML) 6 Page - International Rectifier

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47

датащи скачать

ссылки URL