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THT-13-457-10 Datasheet(PDF) 2 Page - Texas Instruments

Part # THT-13-457-10
Description  TPS54519EVM-037, 5-A, SWIFT??Regulator Evaluation Module
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

THT-13-457-10 Datasheet(HTML) 2 Page - Texas Instruments

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Introduction
www.ti.com
1
Introduction
This user's guide contains background information for the TPS54519 as well as support documentation for
the TPS54519EVM-037 evaluation module (also called PWR037). Also included are the performance
specifications, the schematic, and the bill of materials for the TPS54519EVM-037.
1.1
Background
The TPS54519 dc/dc converter is designed to provide up to a 5-A output from an input voltage source of
2.95 V to 6 V. Rated input voltage and output current range for the evaluation module are given in
Table 1. This evaluation module is designed to demonstrate the small, printed-circuit-board areas that can
be achieved when designing with the TPS54519 regulator. The switching frequency is externally set at a
nominal 1000 kHz. The high-side and low-side MOSFETs are incorporated inside the TPS54519 package
along with the gate drive circuitry. The low, drain-to-source on-resistance of the MOSFETs allows the
TPS54519 to achieve high efficiencies and helps keep the junction temperature low at high output
currents. The compensation components are external to the integrated circuit (IC), and an external divider
allows for an adjustable output voltage. Additionally, the TPS54519 provides adjustable slow start and
undervoltage lockout inputs. The absolute maximum input voltage is 7 V for the TPS54519EVM-037.
Table 1. Input Voltage and Output Current Summary
EVM
INPUT VOLTAGE RANGE
OUTPUT CURRENT RANGE
TPS54519EVM-037
VIN = 3 V to 6 V
0 A to 5 A
1.2
Performance Specification Summary
A summary of the TPS54519EVM-037 performance specifications is provided in Table 2. Specifications
are given for an input voltage of V
IN = 5 V and an output voltage of 1.8 V, unless otherwise specified. The
TPS54519EVM-037 is designed and tested for V
IN = 3 V to 6 V. The ambient temperature is 25°C for all
measurements, unless otherwise noted.
Table 2. TPS54519EVM-037 Performance Specification Summary
SPECIFICATION
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V
IN operating voltage range
3
5
6
V
V
IN start voltage
2.794
V
V
IN stop voltage
2.595
V
Output voltage set point
1.8
V
Output current range
V
IN = 3 V to 6 V
0
5
A
Line regulation
I
O = 2.5 A, VIN = 3 V to 6 V
±0.1%
Load regulation
V
IN = 5 V, IO = 0 A to 5 A
±0.6%
Voltage change
–72
mV
I
O = 1.25 A to 3.75 A,
slew rate = 0.5 A/
µs
Recovery time
100
μs
Load transient response
Voltage change
72
mV
I
O = 3.75 A to 1.25 A,
slew rate = 0.5 A/
µs
Recovery time
100
μs
Loop bandwidth
V
IN = 3.3 V, IO = 5 A
73
kHz
Phase margin
V
IN = 3.3 V , IO = 5 A
54
°
Input ripple voltage
I
O = 5 A
150
mV
PP
Output ripple voltage
I
O = 5 A
<10
mV
PP
Output rise time
2.5
ms
Operating frequency
1000
kHz
Maximum efficiency
TPS54519EVM-037, V
IN = 3 V, IO = 0.5 A
94.6%
2
TPS54519EVM-037, 5-A, SWIFT
™ Regulator— Evaluation Module
SLVU523
– September 2011
Submit Documentation Feedback
Copyright
© 2011, Texas Instruments Incorporated


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