Description
2
SLUUBA9A – June 2015 – Revised February 2017
Copyright © 2015–2017, Texas Instruments Incorporated
Using the TPS53647: PWR710-EVM, 4-Phase, D-CAP+ Step-Down, DC-DC
Analog with PMBus Interface
1.2
Features
•
Regulated 1.0-V output up to 120-A DC steady state output current
•
Output can be marginable and trimmable via the PMBus interface
•
Programmable through PMBus interface
–
UVLO protection threshold
–
Soft-start slew-rate
–
Device enable and disable
–
Overcurrent warning and fault limits
–
SW frequency
–
BOOT voltage
•
Convenient test points for probing critical waveforms
2
Electrical Performance Specifications
Table 1. PWR710-EVM Electrical Performance Specifications
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
INPUT CHARACTERISTICS
V
IN
Voltage range
8
12
14
V
I
IN(max)
Maximum input current
V
IN
= 8 V, I
OUT
= 120 A
17
A
No load input current
V
IN
= 14 V, I
OUT
= 0 A
120
mA
OUTPUT CHARACTERISTICS
V
OUT
Output voltage
1.0
V
I
OUT
Output load current
0
120
A
Output voltage line regulation
8 V
≤
V
IN
≤
14 V
0.03%
Output voltage load regulation
0 A
≤
I
OUT
≤
120 A
0.03%
V
RIPPLE
Output voltage ripple
V
IN
= 12 V, I
OUT
= 120 A
3.8
mVpp
Output overcurrent protection
(OCP)
150
A
SYSTEMS CHARACTERISTICS
f
SW
Switching frequency
V
IN
= 12 V
500
kHz
Peak efficiency
V
IN
= 12 V, I
OUT
= 74 A
91%
Full-load efficiency
V
IN
= 12 V, I
OUT
= 120 A
90%
T
J
Operating temperature
25
ºC
