Texas Instruments TPS53355EVM-864, User Manual

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Description
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4 SLUUBJ6 – November 2016
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Copyright © 2016, Texas Instruments Incorporated
Green TPS53355EVM-864 Evaluation Module
2 Description
The TPS53355EVM-864 is designed to use a regulated 12-V bus to produce a regulated 1.5-V output at
up to 30 A of load current. The TPS53355EVM-864 is designed to demonstrate the TPS53355 in a typical,
low-voltage application while providing a number of test points to evaluate the performance of the
TPS53355.
2.1 Typical Applications
• Server/storage
• Workstations and desktops
• Telecommunication infrastructure
2.2 Features
The TPS53355EVM-864 features:
• 30-Adc, steady-state output current
• Supports prebias output voltage start-up
• J5 for selectable switching frequency setting
• J4 for selectable soft-start time
• J2 for enable function
• J6 for auto-skip and forced CCM selection
• Convenient test points for probing critical waveforms
3 Electrical Performance Specifications
Table 1. TPS53355EVM-864 Electrical Performance Specifications
Parameters Test Conditions Min Typ Max Units
Input Characteristics
Voltage range V
IN
8 12 14 V
Maximum input current V
IN
= 8 V, I
O
= 30 A 6.3 A
No load input current V
IN
= 14 V, I
O
= 0 A with auto-skip mode 1 mA
Output Characteristics
Output voltage VOUT 1.5 V
Output voltage regulation
Line regulation (V
IN
= 8 V – 14 V) 0.1 %
Load regulation (V
IN
= 12 V, I
O
= 0 A – 30 A) 1 %
Output voltage ripple V
IN
= 12 V, I
O
= 30 A 20 mVpp
Output load current 0 30 A
Output overcurrent 34 A
Systems Characteristics
Switching frequency 500 kHz
Peak efficiency V
IN
= 12 V, 1.5 V/10 A 91.87 %
Ful-load efficiency V
IN
= 12 V, 1.5V/30 A 89.46 %
Operating temperature 25 °C
NOTE: Jumpers are set to default locations; see Section 6 of this user’s guide