Table 1-3. TPS543620EVM High Efficiency (U2) Performance Characteristics Summary
SPECIFICATION
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V
IN
voltage range
4
12
18
V
Input current
V
IN
= 12 V, I
O
= 0 A
11
mA
V
IN
= 5 V, I
O
= 6 A
1.37
A
V
IN
start voltage
Set by EN pin resistor divider
4.53
V
V
IN
stop voltage
Set by EN pin resistor divider
3.98
V
Output voltage setpoint
J14 short pins 1 and 2
1.003
V
Output current range
V
IN
= 4 V to 18 V
0
6
A
Line and load regulation
V
IN
= 4 V to 18 V, I
O
= 0 A to 6 A
±0.1%
Load transient response
I
O
= 1.5 A to 4.5 A
Voltage change
–28
mV
Recovery time to
within ±0.5%
60
µs
I
O
= 4.5 A to 1.5 A
Voltage change
25
mV
Recovery time to
within ±0.5%
60
µs
Loop bandwidth
R
O
= 0.2 Ω, J18 short pins 3 and 4
140
kHz
Phase margin
56
degrees
Input ripple voltage
I
O
= 6 A
90
mVPP
Output ripple voltage
I
O
= 6 A
6
mVPP
Output rise time
Set by MODE pin resistor, All default J18 options
1
ms
Current limit
Set by MODE pin resistor, J18 short pins 1 and 2,
3 and 4, or 5 and 6
High
Switching frequency (f
SW
)
Set by FSEL pin resistor, J17 short pins 3 and 4
1000
kHz
Peak efficiency
V
IN
= 5 V, I
O
= 2 A
92.4%
V
IN
= 12 V, I
O
= 3 A
89.3%
IC case temperature
V
IN
= 12 V, I
O
= 6 A, 15-minute soak
40.4
°C
Introduction
SLVUBQ1A – AUGUST 2020 – REVISED MAY 2021
TPS543620 SWIFT™ Step-Down Converter Evaluation Module User's Guide
5
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