IR3856MTRPBF International Rectifier, IR3856MTRPBF Datasheet - Page 7

• Manufacturer Part Number: IR3856MTRPBF
• Description: IC BUCK SYNC ADJ 6A 17PQFN
• Manufacturer: International Rectifier
• Series: SupIRBuck™r
• Type: Step-Down (Buck)r

Specifications of IR3856MTRPBF

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.7 ~ 18.9 V
• Current - Output: 6A
• Frequency - Switching: 250kHz ~ 1.5MHz
• Voltage - Input: 1.5 ~ 21 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 17-PowerVQFN
• Power - Output: 1.11W
• Primary Input Voltage: 21V
• No. Of Outputs: 1
• Output Voltage: 18.9V
• Output Current: 6A
• No. Of Pins: 17
• Operating Temperature Range: -40°C To +125°C
• Peak Reflow Compatible (260 C): Yes
• Rohs Compliant: Yes
• Leaded Process Compatible: Yes
• Part Status: Preferred
• Package: PQFN / 4 x 5
• Circuit: Single Output
• Iout (a): 6
• Switch Freq (khz): 250 - 1500
• Input Range (v): 1.5 - 21
• Output Range (v): 0.7 - 0.9*Vin
• Ocp Otp Uvlo Pre-bias Soft Start And: PGOOD + EN + SEQ + OVP + SYNC
• Design Tool: Yes
• Server Storage: Yes
• Routers Switches: Yes
• Base Station Telecom: Yes
• Digital Home Media: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Electrical Specifications (continued)
Unless otherwise specified, these specification apply over 4.5V< V
Typical values are specified at T
Note3: Cold temperature performance is guaranteed via correlation using statistical quality control. Not tested in production.
Note4: Guaranteed by Design but not tested in production.
OCSET Current
OC com p Offset Voltage
SS off tim e
OVP Trip Threshold
OVP Fault Prop. Delay
Therm al Shutdown
Therm al Hysteresis
Power Good Threshold
PGood Com parator Delay
PGood Delay Com parator
Threshold
PGood Delay Com parator
Hysteresis
PGood Leak age Current
PGood Voltage Low
V
V
Enable-Start-Threshold
Enable-Stop-Threshold
Enable leakage current
Rev2.0
CC
CC
-Start-Threshold
-Stop-Threshold
INPUT/OUTPUT SIGNAL
FAULT PROTECTION
P ARAMETER
V
V
E nable_UVLO_Start
E nable_UVLO_Stop
CC
CC
a
_UVLO_S tart
_UVLO_S top
Delay(SShys)
SS_Hicc up
PG(voltage)
= 25
OVP(delay)
S YMBOL
PG(Delay)
SS(Delay)
OVP(trip)
I(PGDlk)
V
I
OCSET
OFFS ET
VPG
Ien
o
C.
Fs =250kHz
Fs =500kHz
Fs =1500k Hz
Note4
Vsns Rising
Note4
Note4
Note4
Vcc Rising Trip Level
Vcc Falling Trip Level
Supply ramping up
Supply ramping down
Enable= 3.3V
Vsns Rising
Vsns Rising
Relative to charge voltage,
SS rising
Note4
I
P good
= -5mA
TEST CONDITION
cc
<5.5V, V
20.8
3.95
3.65
1.14
MIN
in
136
260
-10
0.9
43
110
80
2
=12V, 0
IR3856MPbF
256/Fs
4096
TYP
23.6
48.8
4.15
3.85
154
115
140
1.2
1.0
20
300
o
2.1
85
0
0
C<T
j
< 125
PD-97528
MAX
26.4
54.6
4.35
4.05
1.36
1.06
172
+10
120
150
340
15
2.3
0.5
90
10
o
C.
Cyc les
UNIT
%Vref
%Vref
mV
uA
uA
°C
mV
uA
ns
V
V
V
V
s
7