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X
X
R
R
P
P
7
7
7
7
0
0
8
8
 
 
a
a
n
n
d
d
 
 
X
X
R
R
P
P
7
7
7
7
4
4
0
0
 
 
Q
Q
u
u
a
a
d
d
 
 
C
C
h
h
a
a
n
n
n
n
e
e
l
l
 
 
D
D
i
i
g
g
i
i
t
t
a
a
l
l
 
 
P
P
W
W
M
M
 
 
S
S
t
t
e
e
p
p
 
 
D
D
o
o
w
w
n
n
 
 
C
C
o
o
n
n
t
t
r
r
o
o
l
l
l
l
e
e
r
r
s
s
 
 
 
?2012 Exar Corporation
2/28
Rev. 1.2.2
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of
the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may affect
reliability.
VCCA, VCCD, LDOOUT, GLx, VOUTx ............................ 6V
AVDD, DVDD ........................................................ 2.0V
VIN1, VIN2 ............................................................ 22V
LXx .............................................................. -1V to 22V
Logic Inputs ............................................................. 6V
BSTx, GHx .................................................... VLXx + 5V
Storage Temperature .............................. -65癈 to 150癈
Lead Temperature (Soldering, 10 sec) ................... 300癈
OPERATING RATINGS
Operating Input Voltage VIN
X
 ........................ 6.5V to 20V
Junction Temperature Range .................... -40癈 to 125癈
Thermal Resistance ?/DIV>
JA
 ....................................24.3癈/W
 
ELECTRICAL SPECIFICATIONS
Specifications with standard type are for an Operating Junction Temperature of T
J
 = 25癈 only; limits applying over the full
Operating Junction Temperature range are denoted by a ". Minimum and Maximum limits are guaranteed through test,
design, or statistical correlation. Typical values represent the most likely parametric norm at T
J
 = 25癈, and are provided for
reference purposes only. Unless otherwise indicated, VIN
1
  = 6.5V to 20V, VIN
2
  = 6.5V to 20V, Enable=HIGH,
C
GL
 = C
GH
 = 1nF.
Quiescent Current
Parameter
Min.
Typ.
Max.
Units
 
Conditions
VIN Supply Current in STANDBY
 
9
 
mA
 
LDOOUT enabled (no load)
No switching converter channels enabled
I
2
C communication active
Switching frequency = 400kHz
VIN Supply Current in
SHUTDOWN
 
180
 
礎
    EN=0V, VIN1=VIN2=12V
VIN Supply Current
 
28
 
mA
 
4 channels running,
GH and GH = 1nF load each
VIN=12V, Switching frequency = 300kHz
VIN Supply Current
 
50
 
mA
 
4 channels running,
GH and GH = 1nF load each
VIN=12V, Switching frequency = 1MHz
Step Down Controllers
Parameter
Min.
Typ.
Max.
Units
 
Conditions
VOUT Regulation Accuracy
-20
 
20
mV
"
0.9V d VOUT d 2.5V
-40
 
40
mV
"
2.6V d VOUT d 5.1V
VOUT regulation range
0.9
 
5.1
 
"   Programmable range of each channel
1
 
VOUT set point resolution
50
 
 
    0.9V d VOUT d 2.5V
VOUT set point resolution
 
100
 
 
 
2.6V d VOUT d 5.1V
VOUT Input Current
 
 
1
uA
"
0.9V < VOUT <= 2.5V
VOUT Input Resistance
 
120
 
k&
 
2.6V d VOUT d 5.1V
Note 1: Voltages above 5.1V can be obtained by using an external voltage divider.
 
 
 
 
 
 
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