XRP7704 Datasheet, PDF (3/31 Pages) Exar Corporation – Quad-Output Digital PWM Buck Controller

REV 1.1.0
XRP7704
Quad-Output Digital PWM Buck Controller
LOW DROP-OUT REGULATOR
PARAMETER
MIN
LDOOUT Output Voltage
(LDO=LOW)
3.15
LDOOUT Output Voltage
(LDO=HIGH)
4.75
LDOOUT Short Circuit
Current Limit
110
AUXILIARY ADCs
PARAMETER
MIN
ADC Resolution
Linearity Error Integral
Linearity Error Differential
-1
Input Dynamic Range VIN1
6.5
Input Dynamic Range VIN2
6.5
TYP MAX
3.3
3.45
5.0
5.25
220
TYP MAX
8
2
1
20
20
UNITS
V
V
mA
CONDITIONS
♦ ^{6.5 <= VIN}1 ^{<= 20V}
0mA < I_LDOOUT < 100mA
♦ ^{6.5 <= VIN}1 ^{<= 20V}
0mA < I_LDOOUT < 100mA
♦ _{VLDOOUT =0V}
UNITS
bit
LSB
LSB
V
♦
V
♦
CONDITIONS
ISENSE ADC
PARAMETER
ADC Resolution
ADC LSB
Input Dynamic Range
MIN TYP MAX
7
5
0
-320
UNITS
bit
mV
mV
CONDITIONS
Referred to the input
PWM GENERATORS and OSCILLATOR
PARAMETER
MIN TYP
Output frequency range
300
Channel-to-channel phase
shift step
90
Channel-to-channel phase
shift step
120
Minimum On Time
40
Minimum Off Time
125
CLOCK IN Synchronization
Range
-5
MAX
1500
5
UNITS
kHz
deg
deg
ns
ns
%
CONDITIONS
Steps defined in the table in the
♦ “PWM Switching Frequency
Setting” Section below.
With 4 phase setting.
With 3 phase setting.
1nF of gate capacitance.
1nF of gate capacitance
♦
EXAR CONFIDENTIAL. PROPRIETARY. DO NOT DISTRIBUTE OR COPY.
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