ir3840 International Rectifier Corp., ir3840 Datasheet - Page 7

• Manufacturer Part Number: ir3840
• Description: Integrated 12a Synchronous Buck Regulator
• Manufacturer: International Rectifier Corp.

Electrical Specifications (continued)
Unless otherwise specified, these specification apply over 4.5V< V
Typical values are specified at T
Parameter
Thermal Shutdown
Thermal Shutdown
Hysteresis
Power Good
Power Good upper
Threshold
Delay Comparator
Threshold
Delay Comparator
Hysteresis
PGood Voltage Low
PGood Comparator
Delay
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.
02/09/09
PG(voltage)
PG(Delay)
Delay(hys)
PG(Delay)
SYM
VPG+
I
leakage
Isw
a
= 25
Note4
Note4
Relative to charge voltage, SS rising
Note4
I
Fb Rising
SW=0V, Enable=0V
SW=0V,Enable=high,SS=3V,Seq=0V,
Note4
PGood
o
=-5mA
C.
Test Condition
cc
<5.5V, V
Min
260
83
2
in
=12V, 0
256/Fs
TYP
140
300
20
2.1
88
IR3840MPbF
0
o
C<T
MAX
340
40
2.3
0.5
93
10
3
j
< 125
o
C.
Units
%Vref
μA
o
mV
μA
C
V
V
s
7