IR3831WMTR1PBF International Rectifier, IR3831WMTR1PBF Datasheet - Page 6
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IR3831WMTR1PBF
Manufacturer Part Number
IR3831WMTR1PBF
Description
IC REG SYNC BUCK 8A 15-QFN
Manufacturer
International Rectifier
Series
SupIRBuck™r
Datasheet
1.IR3831WMTR1PBF.pdf
(32 pages)
Specifications of IR3831WMTR1PBF
Applications
Converter, DDR
Voltage - Input
1.5 ~ 16 V
Number Of Outputs
1
Voltage - Output
0.6 ~ 14.4 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
15-PowerVQFN
Part Status
Preferred
Package
PQFN / 5 x 6
Circuit
Single Output
Iout (a)
8
Switch Freq (khz)
250 - 1500
Input Range (v)
1.5 - 16
Output Range (v)
0.7 - 0.9*Vin
Ocp Otp Uvlo Pre-bias Soft Start And
PGOOD + EN + OVD + DDR Tracking
Server Storage
Yes
Routers Switches
Yes
Base Station Telecom
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
IR3831WMTR1PBFTR
Electrical Specifications (continued)
Unless otherwise specified, these specification apply over 4.5V< V
0
o
C<T
Rt Voltage
Error Amplifier
Over Current Protection
OCSET Current
OC Comp Offset Voltage
SS off time
Bootstrap Diode
Forward Voltage
Deadband
Deadband time
Frequency
Rev 14.0
Oscillator
Ramp Amplitude
Ramp Offset
Min Pulse Width
Fixed Off Time
Max Duty Cycle
Input Offset Voltage
Input Bias Current
Input Bias Current
Sink Current
Source Current
Slew Rate
Gain-Bandwidth Product
DC Gain
Maximum Voltage
Minimum Voltage
Common Mode Voltage
Soft Start/SD
Soft Start Current
Soft Start Clamp Voltage
Shutdown Output
Threshold
j
< 125
Parameter
o
C. Typical values are specified at T
Isource(E/A)
Vss(clamp)
SS_Hiccup
Ramp (os)
Symbol
Dmin(ctrl)
Isink(E/A)
Vmax(E/A)
Vmin(E/A)
IFb(E/A)
IVp(E/A)
V
Vramp
Dmax
GBW P
I
OCSET
OFFSET
Vos
Gain
ISS
SR
SD
F
S
Rt=59K
Rt=28.7K
Rt=9.31K, Note4
Note4
Note4
Note4
Note4
Fs=250kHz
Vfb-Vp
Vp=0.6V
Note4
Note4
Note4
Vcc=4.5V
Note4
Source
Fs=250kHz
Fs=500kHz
Fs=1500kHz
Note4
I(Boot)=30mA
Note4
Test Condition
a
= 25
o
C.
0.665
cc
Min
1350
0.40
20.8
225
450
136
180
-10
2.7
92
100
14
43
-5
-1
-1
20
3.4
8
7
5
0
<5.5V, Vp=0.6V, V
TYP
4096
1500
0.85
23.6
48.8
250
500
130
154
260
3.0
0.7
1.8
0.6
110
120
20
10
50
10
12
3.5
0
30
0
IR3831WMPbF
MAX
0.735
1650
26.4
54.6
275
550
200
172
+10
470
1.2
3.75
3.3
0.3
120
220
26
30
+5
+1
+1
13
20
40
1
in
=12V,
Units
Cycles
Vp-p
V/μs
kHz
MHz
mV
mA
mV
mV
μA
μA
μA
ns
mV
ns
%
V
V
dB
V
V
V
6