IR3871MPBF Ver la hoja de datos (PDF) - International Rectifier

Número de pieza

componentes Descripción

Fabricante

IR3871MPBF

8A HIGHLY INTEGRATED WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR

International Rectifier 

IR3871MPBF

Recommended Operating Conditions

Symbol

VIN

VCC

VOUT

IOUT

Fs

TJ

Definition

Input Voltage

Supply Voltage

Output Voltage

Output Current

Switching Frequency

Junction Temperature

Min

3

4.5

0.5

0

N/A

0

* PHASE pin must not exceed 30V.

Max

26*

7.5

12

8

1000

125

Unit

V

A

kHz

oC

Electrical Specifications

Unless otherwise specified, these specification apply over VIN = 12V, VCC = 5V, 0oC ≤ TJ ≤ 125oC.

PARAMETER

BIAS SUPPLIES

VCC Turn-on Threshold

VCC Turn-off Threshold

VCC Threshold Hysteresis

VCC Operating Current

NOTE

VCC Shutdown Current

FF Shutdown Current

VIN Shutdown Current

INTERNAL LDO OUTPUT

LDO Output Voltage Range

Output Current

CONTROL LOOP

Reference Accuracy, VREF

On-Time Accuracy

Min Off Time

1

Soft-Start Current

Zero Current Threshold

1

FAULT PROTECTION

ISET Pin Output Current

Under Voltage Threshold

Under Voltage Hysteresis

1

Over Voltage Threshold

Over Voltage Hysteresis

1

PGOOD Delay Threshold

(VSS)

TEST CONDITION

RFF = 200K,

EN = HIGH, Fs = 300kHz

EN = LOW

EN = LOW

EN = LOW

C3VCBP = 1µF

VREF

RFF = 180K, TJ = 65oC

EN = HIGH

Measure at VPHASE

Falling VFB & Monitor PGOOD

Rising VFB

Rising VFB & Monitor PGOOD

Falling VFB

MIN TYP MAX UNIT

3.9 4.2 4.5 V

3.6 3.9 4.2 V

150

mV

7.1

mA

35 50 µA

2

µA

1

µA

3.1 3.3 3.5 V

8 mA

0.495 0.5 0.505 V

280 300 320 ns

400

ns

8 10 12 µA

-5 -2.4 0 mV

18 20 22 µA

0.37 0.4 0.43 V

10

mV

0.58 0.62 0.66 V

10

mV

1

V

5

Share Link: