Texas Instruments TPS53513, User Manual

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1 Introduction
The TPS53513EVM-PWR587 evaluation module (EVM) uses the TPS53513 device. The TPS53513 device is a
D-CAP3
™ mode, 8-A synchronous buck converter with integrated MOSFETs. The device provides a fixed 1.2-V
output at up to 8 A from a 12-V input bus.
2 Description
The TPS53513EVM-PWR587 is designed to use a regulated 12-V bus to produce a regulated 1.2-V output at
up to 8 A of load current. The TPS53513EVM-PWR587 is designed to demonstrate the TPS53513 device in
a typical low voltage application while providing a number of test points to evaluate the performance of the
TPS53513 device.
2.1 Typical Applications
• Server and storage
• Workstations and desktops
• Telecommunication infrastructure
2.2 Features
The TPS53513EVM- PWR587 features:
• 8-A DC steady-state output current
• Support pre-bias output voltage start-up
• J2 for enable function
• J5 for auto-skip and forced CCM selection
• J7 for extra 5-V input for further power saving purpose
• Convenient test points for probing critical waveforms
3 Electrical Performance Specifications
Table 3-1. TPS53513EVM-PWR587 Electrical Performance Specifications
(1)
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
Input Characteristic
Voltage range V
IN
5 12 18 V
Maximum input current V
IN
= 5 V, I
O
= 8 A 2.5 A
No load input current V
IN
= 12 V, I
O
= 0 A with auto skip mode 1 mA
Output Characteristics
Output voltage V
OUT
1.2 V
Output voltage regulation
Line regulation, V
IN
= 5 V – 14 V with FCCM 0.2%
Load regulation, V
IN
= 12 V, I
O
= 0 A – 8 A with FCCM 0.5%
Output voltage ripple V
IN
= 12 V, I
O
= 8 A with FCCM 10 mV
PP
Output load current 0 8
A
Output over current 11
Soft start 1 mS
Systems Characteristics
Switching frequency 1000 kHz
Peak efficiency V
IN
= 12 V, 1.2 V / 4 A 88.5%
Full load efficiency V
IN
= 12 V, 1.2 V / 8 A 86.9%
Operating temperature 25 °C
(1) Jumpers set to default locations. See Section 6 .
Introduction www.ti.com
2 TPS53513 Step-Down Converter Evaluation Module User's Guide SLUUAQ0C – OCTOBER 2013 – REVISED NOVEMBER 2021
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