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XRP7714ILB-0X1C-F Datasheet(PDF) 3 Page - Exar Corporation

Part # XRP7714ILB-0X1C-F
Description  Quad Channel Digital PWM Step Down Controller
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRP7714ILB-0X1C-F Datasheet(HTML) 3 Page - Exar Corporation

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© 2010 Exar Corporation
3/29
Rev. 1.1.4
Low Drop-out Regulator
Parameter
Min.
Typ.
Max.
Units
Conditions
LDOOUT Output Voltage
LDO=LOW
3.15
3.3
3.45
V
• 4.75V≤VIN1≤25V
0mA<ILDOOUT<100mA
LDOOUT Output Voltage
LDO=HIGH
4.75
5.0
5.25
V
• 6.3≤VIN1≤25V
0mA<ILDOOUT<100mA
LDOOUT Short Circuit Current
Limit
110
220
mA
• VLDOOUT=0V
Auxiliary ADCs
Parameter
Min.
Typ.
Max.
Units
Conditions
Linearity Error Integral
2
LSB
Linearity Error Differential
-1
1
LSB
Input Dynamic Range VIN1
4.8
25
V
Input Dynamic Range VIN2
4.8
25
V
Isense ADC
Parameter
Min.
Typ.
Max.
Units
Conditions
ADC LSB
5
mV
Referred to the input
Input Dynamic Range
0
-320
mV
PWM Generators and Oscillator
Parameter
Min.
Typ.
Max.
Units
Conditions
Output frequency range
300
1500
kHz
Steps defined in the table in the PWM
Switching Frequency Setting section
below
Output Frequency Accuracy
-10
10
%
Channel-to-channel phase shift
90
deg
Minimum On Time
40
ns
1nF of gate capacitance
Dead Time Adjustment Step
13
ns
Switching frequency = 300kHz
10% to 90% duty cycle, Frequency
dependant; refer to the graph in
performance characteristic section
1.5
ns
Switching frequency = 1.5MHz
10% to 90% duty cycle, Frequency
dependant; refer to the graph in
performance characteristic section
CLOCK IN Synchronization
Range
-5
5
%
Maximum Duty Cycle2
86
%
• Switching frequency = 300kHz
78
%
• Switching frequency = 1.5MHz
Note 2: The maximum duty cycle represents the maximum duty cycle commanded by the DPWM, is guaranteed by design,
and internally set to ensure proper sampling of the current during the off-time.


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