XRP7720 Datasheet, PDF (6/28 Pages) Exar Corporation – Quad Output Universal Customizable PMIC with PFM

XRP7720
Quad Output Universal Customizable PMIC with PFM
FAULTS AND WARNINGS
Parameter
Current Limit Accuracy
Current Limit Set Point
Resolution
Current Limit Set Point
Range
Min.
-3.75
-10
-5
-12.5
-120
-280
Typ.
±1.25
±2.5
1.25
2.5
Max.
3.75
10
5
+12.5
20
40
Units
mV
mV
mV
mV
mV
mV
mV
Conditions
Low Range (≤120mV)
• -60mV applied
High Range (≤280mV)
• -150mV applied
Low Range (≤120mV)
High Range (≤280mV)
Low Range (≤120mV)
High Range (≤280mV)
VCC UVLO Set Point Range
4.6
18
V
VCC UVLO Set Point
Resolution
200
mV
VCC WARN and FAULT Set
Point Accuracy
-400
400
mV
VCC UVLO WARN (Note 2)
4.4
4.72
V
UVLO WARN set point 4.6V, VCC=LDO5
Over Temperature Set Point
Resolution
5
Over Temperature Set Point
Accuracy
-10
°C
10
°C
Note 2: This test is only performed when WARN is programmed to 4.6V.
LINEAR REGULATOR
Parameter
LDO5 Output Voltage
Min.
4.85
Typ.
5.0
Max.
5.15
Units
V
LDO5 Current Limit
105
125
LDO5 UVLO
4.74
LDO5 PGOOD Hysteresis
375
LDO5 Bypass Switch Resistance
1.1
Bypass Switch Activation
Threshold
2.5
Bypass Switch Activation
Hysteresis
150
Maximum total LDO loading
during ENABLE start-up
150
mA
V
mV
1.5
Ω
2.5
%
mV
30
mA
Conditions
5.5V ≤ VCC ≤ 18V
• 0mA < I_LDO5OUT < 130mA, LDO3_3 Off
• LDO5 Fault Set
• V_CC Rising
VCC Falling
• V5EXT Rising, % of threshold setting
V5EXT Falling
ENABLE transition from logic low to
high. Once LDO5 in regulation above
limits apply.
© 2014 Exar Corporation
6/28
Rev. 1.0.0