Texas Instruments TPS543C20AEVM-054, Руководство пользователя

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Description
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4 SLUUBZ2 – December 2018
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Copyright © 2018, Texas Instruments Incorporated
TPS543C20AEVM-054 40-A Single Phase Synchronous Step-Down
Converter
2 Description
The BSR054EVM is designed as a single output DC/DC converter that demonstrates the
TPS543C20AEVM-054 in a typical low-voltage application while providing a number of test points to
evaluate the performance. It uses a nominal 12-V input bus to produce a regulated 0.9-V output at up to
40-A load current.
2.1 Typical End-User Applications
• Enterprise storage, SSD, NAS
• Wireless and wired communication infrastructure
• Industrial PCs, automation, ATE, PLC, video surveillance
• Enterprise server, switches, routers
• ASIC, SoC, FPGA, DSP core and I/O rails
2.2 EVM Features
• Regulated 0.9-V output up to 40-A, steady-state output current
• Convenient test points for probing critical waveforms
3 EVM Electrical Performance Specifications
Table 1. BSR054EVM Electrical Performance Specifications
Parameter Test Conditions Min Typ Max Units
Input Characteristics
Voltage range V
IN
tied to VDD 5 12 16 V
Maximum input current V
IN
= 12 V, I
O
= 40 A, V
OUT
= 0.9 V, F
SW
= 500 kHz 3.5 A
No load input current V
IN
= 12 V, I
O
= 0 A 50 mA
Output Characteristics
V
OUT
Output voltage Output current = 0 A to 40 A 0.9 V
I
OUT
Output load current I
OUT(min)
to I
OUT(max)
0 40 A
Output voltage regulation
Line regulation: input voltage = 5 V to 16 V 0.5%
Load regulation: output current = 0 A to I
OUT(max)
0.5%
V
OUT
Output voltage ripple V
IN
= 12 V, I
OUT
= 40 A 10 mV
PP
V
OUT
Output overcurrent 46 A
Systems Characteristics
Switching frequency F
SW
500 kHz
V
OUT
Peak efficiency V
IN
= 12 V, I
O
= 17 A, F
SW
= 500 kHz 90%
Operating temperature T
oper
0 85 ºC