XRP7725 Datasheet, PDF (4/34 Pages) Exar Corporation – Power Management System

XRP7725
Intel Node Manager Compatible Programmable
Power Management System
INPUT VOLTAGE RANGE AND UNDERVOLTAGE LOCKOUT
Parameter
VCC Range
Min.
5.5
4.75
Typ.
Max.
25
5.5
Units
V
V
Conditions
•
• With V_CC connected to LDO5
VOLTAGE FEEDBACK ACCURACY AND OUTPUT VOLTAGE SET POINT RESOLUTION
Parameter
VOUT Regulation Accuracy
Low Output Range
0.6V to 1.6V
PWM Operation
VOUT Regulation Accuracy
Mid Output Range
0.6V to 3.2V
PWM Operation
VOUT Regulation Accuracy
High Output Range
0.6V to 5.5V
PWM Operation
VOUT Regulation Range
VOUT Native Set Point
Resolution
Min.
-5
-20
-7.5
-22.5
-15
-45
-20
-50
-30
-90
-40
-100
0.6
VOUT Fine Set Point Resolution¹
VOUT Input Resistance
VOUT Input Resistance in PFM
Operation
Power Good and OVP Set Point
Range (from set point)
Power Good and OVP Set Point
Accuracy
BFB Set Point Range
BFB Set Point Resolution
BFB Accuracy
-155
-310
-620
-5
-10
-20
9
-0.5
Typ.
12.5
25
50
2.5
5
10
120
90
75
10
1
0.67
1
Max.
5
20
7.5
22.5
15
45
20
50
30
90
40
100
5.5
157.5
315
630
5
10
20
16
0.5
Units
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
V
mV
mV
kΩ
MΩ
mV
mV
V
V
V
Conditions
• ^{0.6 ≤ VOUT ≤ 1.6V}
0.6 ≤ VOUT ≤ 1.6V
• VCC =LDO5
• ^{0.6 ≤ VOUT ≤ 3.2V}
0.6 ≤ VOUT ≤ 3.2V
• VCC =LDO5
• ^{0.6 ≤ VOUT ≤ 5.5V}
0.6 ≤ VOUT ≤ 4.2V
• VCC =LDO5
• Without external divider network
Low Range
Mid Range
High Range
Low Range
Mid Range
High Range
Low Range
Mid Range
High Range
Low Range
Mid Range
High Range
Low Range
Mid Range
High Range
Low Range
Mid Range
High Range
Note 1: Fine Set Point Resolution not available in PFM
© 2014 Exar Corporation
4/34
Rev. 1.0.0