XRP7740ILB-AAAA-F EXAR [Exar Corporation], XRP7740ILB-AAAA-F Datasheet - Page 2

• Manufacturer Part Number: XRP7740ILB-AAAA-F
• Description: Quad-Output Digital PWM Buck Controller Supporting high current loads
• Manufacturer: EXAR [Exar Corporation]

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
ELECTRICAL SPECIFICATIONS
Unless otherwise specified: Ta=Tj=25°C, 6.5≤VIN1≤20V, 6.5≤VIN2≤20V, ENABLE=HIGH, C
Those specifications denoted by a ♦ are guaranteed over the full operating temperature range, -40°C <Tj< 125°C.
QUIESCENT CURRENT
BUCK CONTROLLERS
VIN Supply Current in
STANDBY
VIN Supply Current in
SHUTDOWN
VIN Supply Current
VIN Supply Current
VOUT Regulation Accuracy
Feedback Resolution
Feedback Resolution
VOUT input voltage
regulation range
VOUT set point resolution
VOUT set point resolution
VOUT Input Current
VOUT Input Resistance
Load Current
REV 1.1.0
PARAMETER
PARAMETER
EXAR CONFIDENTIAL, PRELIMINARY & PROPRIETARY. DO NOT DISTRIBUTE OR COPY.
EXAR RESERVES THE RIGHT TO MAKE CHANGES TO THIS DATASHEET.
MIN
MIN
-20
-40
0.9
TYP
TYP
180
100
120
28
50
10
50
9
5
MAX
MAX
Quad-Output Digital PWM Buck Controller
5.1
20
40
15
1
5
2
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
UNITS
UNITS
mA
mA
mA
mV
mV
mV
mV
mV
mV
µA
µA
kΩ
V
A
A
♦
♦
♦
♦
LDOOUT enabled (no load)
No switching converter channels
enabled
I2C Communication Active
Switching Frequency = 400kHz
EN = 0V
VIN1 = VIN2 = 12V
4 channels running
GH and GL = 1nF Load each
VIN = 12V
Switching Frequency = 300KHz
4 channels running
GH and GL=1nF Load each
VIN = 12V
Switching Frequency = 1MHz
0.9 <= VOUT <= 2.5V
2.6 <= VOUT <= 5.1V
0.9 <= VOUT <= 2.5V
2.6 <= VOUT <= 5.1V
Programmable range of each
channel.
0.9 <= VOUT <= 2.5V
2.6 <= VOUT <= 5.1V
0.9 < VOUT <= 2.5V
2.6 <= VOUT <= 5.1V
Controllers 1 and 3 can each be
configured up to a 5A load.
Controllers 2 and 4 can each be
configured up to a 15A load.
GL
=C
GH
=1nF.
CONDITIONS
CONDITIONS
XRP7740