IR3871MTR1PBF International Rectifier, IR3871MTR1PBF Datasheet - Page 5

• Manufacturer Part Number: IR3871MTR1PBF
• Description: IC REG SYNC BUCK 8A 17-QFN
• Manufacturer: International Rectifier
• Series: SupIRBuck™r
• Type: Step-Down (Buck)r

Specifications of IR3871MTR1PBF

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.5 ~ 5 V
• Current - Output: 8A
• Frequency - Switching: Adj to 1MHz
• Voltage - Input: 3 ~ 26 V
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 17-PowerVQFN
• Part Status: Active
• Package: PQFN / 5 x 6
• Circuit: Single Output
• Iout (a): 8
• Switch Freq (khz): 0 - 1000
• Input Range (v): 3.0 - 26
• Output Range (v): 0.5 - 12
• Ocp Otp Uvlo Pre-bias Soft Start And: Constant On-Time + OVP no OTP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: IR3871MTR1PBFTR

Recommended Operating Conditions
* Note: PHASE pin must not exceed 30V.
Electrical Specifications
Unless otherwise specified, these specification apply over VIN = 12V, VCC = 5V, 0
VCC Turn-on Threshold
VCC Turn-off Threshold
VCC Threshold Hysteresis
VCC Operating Current
VCC Shutdown Current
FF Shutdown Current
VIN Shutdown Current
LDO Output Voltage Range
Output Current
Reference Accuracy, V
On-Time Accuracy
Min Off Time
Soft-Start Current
Zero Current Threshold
ISET Pin Output Current
Under Voltage Threshold
Under Voltage Hysteresis
Over Voltage Threshold
Over Voltage Hysteresis
PGOOD Delay Threshold
(V
VIN
VCC
V
I
Fs
T
OUT
J
SS
OUT
BIAS SUPPLIES
INTERNAL LDO OUTPUT
CONTROL LOOP
FAULT PROTECTION
Symbol
)
PARAMETER
Input Voltage
Supply Voltage
Output Voltage
Output Current
Switching Frequency
Junction Temperature
REF
Definition
NOTE
1
1
1
1
R
EN = HIGH, Fs = 300kHz
EN = LOW
EN = LOW
EN = LOW
C
V
R
EN = HIGH
Measure at V
Falling V
Rising V
Rising V
Falling V
REF
FF
LDO
FF
= 200K,
= 180K, T
= 1µF
TEST CONDITION
FB
FB
FB
FB
& Monitor PGOOD
& Monitor PGOOD
PHASE
J
= 65
Min
N/A
4.5
0.5
3
0
0
o
C
Max
1000
125
26*
7.5
12
0.495
8
0.37
0.58
MIN
280
3.9
3.6
3.1
18
-5
8
IR3871MPBF
o
C ≤ T
TYP
0.62
150
300
400
-2.4
4.2
3.9
7.1
3.3
0.5
0.4
35
10
20
10
10
2
1
1
J
≤ 125
0.505
MAX
0.43
0.66
320
4.5
4.2
3.5
50
12
22
Unit
8
0
kHz
o
V
A
C
o
C.
UNIT
mV
mA
mA
mV
mV
mV
µA
µA
µA
µA
µA
ns
ns
V
V
V
V
V
V
V
5