XRP7708 Datasheet, PDF (3/27 Pages) Exar Corporation – Quad Channel Digital PWM Step Down Controller

XRP7708
Quad Channel Digital PWM Step Down Controller
Parameter
LDOOUT Output Voltage
LDO=LOW
LDOOUT Output Voltage
LDO=HIGH
LDOOUT Short Circuit Current
Limit
Min.
3.15
4.75
110
Typ.
3.3
5.0
Max.
3.45
5.25
220
Units
V
V
mA
Conditions
• ^{6.5V≤VIN1≤20V}
0mA<I_LDOOUT<100mA
• ^{6.5V≤VIN1≤20V}
0mA<I_LDOOUT<100mA
• V_LDOOUT=0V
Auxiliary ADCs
Parameter
Linearity Error Integral
Linearity Error Differential
Input Dynamic Range VIN1
Input Dynamic Range VIN2
Min.
-1
6.5
6.5
Typ.
Max.
2
1
20
20
Units
LSB
LSB
V
•
V
•
Conditions
Isense ADC
Parameter
ADC LSB
Input Dynamic Range
Min.
0
Typ.
5
Max.
-320
Units
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
Minimum On Time
40
Minimum Off Time
125
CLOCK IN Synchronization
Range
-5
Max.
1500
5
Units
kHz
deg
ns
ns
%
Conditions
Steps defined in the table in the PWM
• Switching Frequency Setting section
below
1nF of gate capacitance
1nF of gate capacitance
•
Digital Input/Output Pins (GPIO0-GPIO5)
3.3V CMOS logic compatible, 5V tolerant
Parameter
Input Pin Low Level
Input Pin High Level
Input Pin Leakage Current
Input pin Capacitance
Output Pin Low Level
Output Pin High Level
Output Pin High Level (no load)
Min.
2.0
2.4
Typ.
5
3.3
Max.
0.8
10
0.4
3.6
Units
V
V
µA
pF
V
V
V
I²C Specification
Parameter
I²C Speed
Input Pin Low Level, V_IL
Input Pin High Level, V_IH
Hysteresis of Schmitt Trigger
Inputs, V_HYS
© 2010 Exar Corporation
Min.
2.97
0.165
Typ.
Max.
400
1.0
Units
kHz
V
V
V
3/27
•
•
• V_IO=3.3V
Conditions
• I_SINK=3mA
• I_SOURCE=1mA
• I_SOURCE=0mA
Conditions
Based upon I²C master clock
Rev. 1.0.3