IR3831WMPBF_1 Datasheet, PDF (6/32 Pages) International Rectifier – HIGHLY EFFICIENT INTEGRATED SYNCHRONOUS BUCK REGULATOR FOR DDR APPLICATIONS

IR3831WMPbF
Electrical Specifications (continued)
Unless otherwise specified, these specification apply over 4.5V< V_cc<5.5V, Vp=0.6V, V_in=12V,
0^oC<T_j< 125^oC. Typical values are specified at T_a = 25^oC.
Parameter
Symbol
Test Condition
Min TYP MAX
Units
Oscillator
Rt Voltage
F requenc y
Ramp Amplitude
Ramp Offset
Min Pulse Width
Fixed Off Time
Max Duty Cycle
F_S
Vramp
Ramp (os)
Dm in(c trl)
Dmax
Rt=59K
Rt=28.7K
Rt=9.31K, Note4
Note4
Note4
Note4
Note4
Fs=250kHz
0.665
225
450
1350
92
0.7
250
500
1500
1.8
0.6
50
130
0.735
275
550
1650
200
V
kHz
Vp-p
V
ns
%
Error Amplifier
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
Over Current Protection
OCSET Current
Vos
IF b(E/A )
IVp(E /A)
I sink (E/A)
Isource(E/A)
SR
GBW P
Gain
Vm ax (E/A)
Vmin(E/A )
IS S
Vss (clam p)
SD
I OCSET
OC Comp Offset Voltage
SS off time
Bootstrap Diode
Forward Voltage
Deadband
Deadband time
V_{OFFS ET}
S S_Hicc up
Vfb-Vp
Vp=0.6V
Note4
Note4
Note4
Vc c=4.5V
Note4
Source
Fs=250kHz
Fs=500kHz
F s=1500k Hz
Note4
I(Boot)=30mA
Note4
-5
-1
-1
0.40
8
7
20
100
3.4
0
0
0.85
10
12
30
110
3.5
120
+5
+1
+1
1.2
13
20
40
120
3.75
220
1
14
20
26
2.7
3.0
3.3
0.3
20.8
43
136
-10
23.6
48.8
154
0
4096
26.4
54.6
172
+10
180
260
470
5
10
30
mV
μA
mA
V/μs
MHz
dB
V
mV
V
μA
V
μA
mV
Cycles
mV
ns
6
Rev 14.0