Texas Instruments TPS543820EVM, Руководство пользователя, Страница: 4 / 38

1.3 Performance Characteristics Summary
A summary of the TPS543820EVM performance characteristics is provided in Table 1-2 and Table 1-3 . The
TPS543820EVM 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 an output voltage of 1.0 V, unless otherwise specified. The ambient temperature is room
temperature (20°C to 25°C) for all measurements, unless otherwise noted.
Table 1-2. TPS543820EVM Small Size (U1) Performance Characteristics Summary
SPECIFICATION TEST CONDITIONS MIN TYP MAX UNIT
V
IN
voltage range 4 12 13.2
(1)
V
Input current
V
IN
= 12 V, I
O
= 0 A 14 mA
V
IN
= 5 V, I
O
= 8 A 1.90 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 1.005 V
Output current range V
IN
= 4 V to 13.2 V 0 8 A
Line and load regulation V
IN
= 4 V to 13.2 V, I
O
= 0 A to 8 A
+0.1%,
-0.3%
Load transient response
I
O
= 1.5 A to 4.5 A
Voltage change –25 mV
Recovery time to
within ±0.5%
70 µs
I
O
= 4.5 A to 1.5 A
Voltage change 25 mV
Recovery time to
within ±0.5%
70 µs
Loop bandwidth
R
O
= 0.2 Ω
201 kHz
Phase margin 50 degrees
Input ripple voltage I
O
= 6 A 70 mVPP
Output ripple voltage I
O
= 6 A 9 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
= 2.5 A 91.2%
V
IN
= 12 V, I
O
= 3.5 A 87.0%
IC case temperature V
IN
= 12 V, I
O
= 8 A, 15-minute soak 58.8 °C
(1) Max V
IN
limited by minimum on-time and no BOOT resistor
Introduction www.ti.com
4 TPS543820EVM SWIFT™ Step-Down Converter Evaluation Module User's
Guide SLUUCE9A – DECEMBER 2020 – REVISED APRIL 2021
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