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XRP7704 Datasheet(PDF) 2 Page - Exar Corporation

Part # XRP7704
Description  Quad-Output Digital PWM Buck Controller
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRP7704 Datasheet(HTML) 2 Page - Exar Corporation

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XRP7704
REV 1.1.0
Quad-Output Digital PWM Buck Controller
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……...…………………………… ….…………… 27V
Storage Temperature……………………..……. -65
°C to 150 °C
Thermal Resistance……………………………………... 18
°C/W
Lead Temperature (Soldering, 10 sec)…………………..300
°C
ELECTRICAL SPECIFICATIONS
Unless otherwise specified: Ta=Tj=25°C, 6.5≤VIN1≤20V, 6.5≤VIN2≤20V, ENABLE=HIGH, CGL=CGH=1nF.
Those specifications denoted by a ♦ are guaranteed over the full operating temperature range, -40
°C <Tj< 125°C.
QUIESCENT CURRENT
PARAMETER
MIN
TYP
MAX
UNITS
CONDITIONS
VIN Supply Current in
STANDBY
9
mA
LDOOUT enabled (no load)
No switching converter channels
enabled
I2C Communication Active
Switching Frequency = 400kHz
VIN Supply Current in
SHUTDOWN
180
µA
EN = 0V
VIN1 = VIN2 = 12V
VIN Supply Current
28
mA
4 channels running
GH and GL = 1nF Load each
VIN = 12V
Switching Frequency = 300KHz
VIN Supply Current
50
mA
4 channels running
GH and GL=1nF Load each
VIN = 12V
Switching Frequency = 1MHz
BUCK CONTROLLERS
PARAMETER
MIN
TYP
MAX
UNITS
CONDITIONS
-20
20
mV
0.9 <= VOUT <= 2.5V
VOUT Regulation Accuracy
-40
40
mV
2.6 <= VOUT <= 5.1V
Feedback Resolution
5
mV
0.9 <= VOUT <= 2.5V
Feedback Resolution
10
mV
2.6 <= VOUT <= 5.1V
VOUT input voltage
regulation range
0.9
5.1
V
Programmable range of each
channel.
VOUT set point resolution
50
mV
0.9 <= VOUT <= 2.5V
VOUT set point resolution
100
mV
2.6 <= VOUT <= 5.1V
VOUT Input Current
1
µA
0.9 < VOUT <= 2.5V
VOUT Input Resistance
120
kΩ
2.6 <= VOUT <= 5.1V
EXAR CONFIDENTIAL. PROPRIETARY. DO NOT DISTRIBUTE OR COPY.
2


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