ir3831 International Rectifier Corp., ir3831 Datasheet - Page 7

• Manufacturer Part Number: ir3831
• Description: Synchronous Buck Regulator For Ddr Applications
• Manufacturer: International Rectifier Corp.

Electrical Specifications (continued)
Unless otherwise specified, these specification apply over 4.5V< V
0
o
Parameter
Thermal Shutdown
Thermal Shutdown
Hysteresis
Power Good
Power Good upper
Threshold
Delay Comparator
Threshold
Delay Comparator
Hysteresis
PGood Voltage Low
PGood Comparator
Dealy
Leakage Current
Switch Node
SW Bias Current
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.
C<T
02/20/09
j
< 125
o
C. Typical values are specified at T
PG(voltage)
Delay(hys)
PG(Delay)
PG(Delay)
SYM
VPG+
I
leakage
Isw
Note4
Note4
Fb Rising
Relative to charge voltage, SS rising
Note4
I
SW=0V, Enable=0V
SW=0V,Enable=high,SS=3V,Vp=0V,
Note4
PGood
=-5mA
Test Condition
a
= 25
o
C.
cc
Min
470
260
<5.5V, Vp=0.6V, V
2
256/Fs
TYP
140
515
300
20
2.1
0
IR3831MPbF
in
=12V,
MAX
560
340
2.3
0.5
40
10
3
Units
μA
o
mV
mV
μA
C
V
V
s
7