Texas Instruments TPS54202EVM-716, User Manual

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Introduction
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2 SLVUAP3 – April 2016
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Copyright © 2016, Texas Instruments Incorporated
TPS54202EVM-716 2-A Regulator Evaluation Module
1 Introduction
This user's guide contains background information for the TPS54202 as well as support documentation for
the TPS54202EVM-716 evaluation module (PWR716-001). Also included are the performance
specifications, the schematic, and the bill of materials for the TPS54202EVM-716.
1.1 Background
The TPS54202 dc/dc converter is designed to provide up to a 2-A output from an input voltage source of
8 V to 28 V. Rated input voltage and output current range for the evaluation module are given in
Table 1 .
In order to reduce EMI, the TPS54202 introduces frequency spread spectrum. The jittering span is ±6% of
the switching frequency with 1/512 swing frequency. This evaluation module is designed to demonstrate
the small printed-circuit-board areas that may be achieved when designing with the TPS54202 regulator.
The switching frequency is internally set at a nominal 500 kHz. The high-side and low-side MOSFETs are
incorporated inside the TPS54202 package along with the gate-drive circuitry. The low drain-to-source on
resistance of the MOSFETs allow the TPS54202 to achieve high efficiencies and helps keep the junction
temperature low at high output currents. The compensation components are integrated to the integrated
circuit (IC), and an external divider allows for an adjustable output voltage. Additionally, the TPS54202
provides an adjustable undervoltage lockout input. The absolute maximum input voltage is 30 V for the
TPS54202EVM-716.
Table 1. Input Voltage and Output Current Summary
EVM Input Voltage Range Output Current Range
TPS54202EVM-716 V
IN
= 8 V to 28 V 0 A to 2 A
1.2 Performance Specification Summary
A summary of the TPS54202EVM-716 performance specifications is provided in Table 2 . Specifications
are given for an input voltage of V
IN
= 24 V and an output voltage of 5.0 V, unless otherwise specified. The
TPS54202EVM-716 is designed and tested for V
IN
= 8 V to 28 V. The ambient temperature is 25°C for all
measurements, unless otherwise noted.
Table 2. TPS54202EVM-716 Performance Specification Summary
Specification Test Conditions MIN TYP MAX Unit
V
IN
operating voltage range 8 24 28 V
V
IN
start voltage 6.74 V
V
IN
stop voltage 5.83 V
Output voltage set point 5 V
Output current range V
IN
= 8 V to 28 V 0 2 A
Line regulation I
O
= 1 A, V
IN
= 8 V to 28 V ±0.5%
Load regulation V
IN
= 12 V, I
O
= 0 A to 2 A ±0.5%
Load transient response
I
O
= 0.5 A to 1.5 A
Voltage change –150 mV
Recovery time 150 μ s
I
O
= 1.5 A to 0.5 A
Voltage change 150 mV
Recovery time 150 μ s
Input ripple voltage I
O
= 2 A 400 mV
PP
Output ripple voltage I
O
= 2 A <30 mV
PP
Output rise time 5 ms
Center operating frequency 500 kHz
Maximum Efficiency TPS54202EVM-716, V
IN
= 12 V, I
O
= 1 A 94.06%