Texas Instruments TPS543320EVM, User Manual, Page: 4 / 36

1.3 Performance Characteristics Summary
A summary of the TPS543320EVM performance characteristics is provided in Table 1-2 and Table 1-3 . The
TPS543320EVM is designed and tested for V
IN
= 4 V to 18 V. Characteristics are given for an input voltage of
V
IN
= 12 V and output voltages of 1.8 V and 3.3 V, unless otherwise specified. The ambient temperature is room
temperature (20°C to 25°C) for all measurements, unless otherwise noted.
Table 1-2. TPS543320EVM Small Size (U1) 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 12 mA
V
IN
= 5 V, I
O
= 3 A 1.23 A
V
IN
start voltage Set by internal UVLO 3.95 V
V
IN
stop voltage Set by internal UVLO 3.8 V
Output voltage setpoint 1.8 V
Output current range V
IN
= 4 V to 18 V 0 3 A
Line and load regulation V
IN
= 4 V to 18 V, I
O
= 0 A to 3 A ±0.1%
Load transient response
I
O
= 0.75 A to 2.25 A
Voltage change –75 mV
Recovery time to
within ±0.5%
32 µs
I
O
= 2.25 A to 0.75 A
Voltage change 75 mV
Recovery time to
within ±0.5%
32 µs
Loop bandwidth
R
O
= 0.72 Ω
117 kHz
Phase margin 51 degrees
Input ripple voltage I
O
= 3 A 18 mVPP
Output ripple voltage I
O
= 3 A 16 mVPP
Output rise time Set by MODE pin resistor 1 ms
Current limit Set by MODE pin resistor High
Switching frequency (f
SW
) Set by FSEL pin resistor 1500 kHz
Peak efficiency
V
IN
= 5 V, I
O
= 1.5 A 94.7%
V
IN
= 12 V, I
O
= 2.5 A 91.6%
IC case temperature V
IN
= 12 V, I
O
= 3 A, 15-minute soak 35.1 °C
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4 TPS543320 SWIFT™ Step-Down Converter Evaluation Module User's Guide SLVUC07A – DECEMBER 2020 – REVISED MAY 2021
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