Texas Instruments 9A, 3V to 4V Vin, SWIFT™ Converter Evaluation Module TPS54917EVM-367 TPS54917EVM-367 Datenbogen
Produktcode
TPS54917EVM-367
2.2
Efficiency
EFFICIENCY vs OUTPUT CURRENT
50
55
60
65
70
75
80
85
90
0
1
2
3
4
5
6
7
8
9
10
I
- Output Current - A
O
V = 3.3 V
I
Efficiency-%
V = 3 V
I
V = 4 V
I
f = 1600 kHz,
V = 3.3 V,
V
= 1.8 V
s
I
O
Test Setup and Results
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Table 4. EVM Connectors and Test Points
Reference Designator
Function
J1
SYNC input. Connection for external synchronization clock.
J2
V
OUT
, 1.8 V at 9 A maximum.
J3
V
IN
(see
for V
IN
range).
J4
2-pin header for enable. Connect EN to ground to disable, open to enable. Use to monitor SS/ENA
voltage.
voltage.
TP1
Output voltage test point at VOUT connector
TP2
V
IN
test point at V
IN
connector.
TP3
Test point between voltage divider network and output. Used for loop response measurements.
TP4
PH test point.
TP5
GND test point at V
IN
connector.
TP6
GND test point at OUT connector.
The efficiency of this EVM peaks at a load current of about 1 A — 2.5 A and then decreases as the load
current increases towards full load.
current increases towards full load.
shows the efficiency for the TPS54917EVM-367 at an
ambient temperature of 25
°
C.
Figure 1. TPS54917EVM-367 Efficiency
The efficiency may be lower at higher ambient temperatures, due to temperature variation in the
drain-to-source resistance of the internal MOSFET.
drain-to-source resistance of the internal MOSFET.
TPS54917EVM-367 9-A, SWIFT™ Regulator Evaluation Module
4
SLVU278 – December 2008