Texas Instruments TPS54719 Evaluation Module TPS54719EVM-152 TPS54719EVM-152 데이터 시트
제품 코드
TPS54719EVM-152
Introduction
1
Introduction
This user's guide contains background information for the TPS54719 as well as support documentation for
the TPS54719EVM-152 evaluation module (also called PWR152). Also included are the performance
specifications, the schematic, and the bill of materials for the TPS54719EVM-152.
the TPS54719EVM-152 evaluation module (also called PWR152). Also included are the performance
specifications, the schematic, and the bill of materials for the TPS54719EVM-152.
1.1
Background
The TPS54719 dc/dc converter is designed to provide up to a 7-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
2.95 V to 6 V. Rated input voltage and output current range for the evaluation module are given in
. This evaluation module is designed to demonstrate the small, printed-circuit-board areas that can
be achieved when designing with the TPS54719 regulator. The switching frequency is externally set at a
nominal 500 kHz. The high-side and low-side MOSFETs are incorporated inside the TPS54719 package
along with the gate drive circuitry. The low, drain-to-source on-resistance of the MOSFETs allows the
TPS54719 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 TPS54719 provides adjustable slow start and
undervoltage lockout inputs. The absolute maximum input voltage is 7 V for the TPS54719EVM-152.
nominal 500 kHz. The high-side and low-side MOSFETs are incorporated inside the TPS54719 package
along with the gate drive circuitry. The low, drain-to-source on-resistance of the MOSFETs allows the
TPS54719 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 TPS54719 provides adjustable slow start and
undervoltage lockout inputs. The absolute maximum input voltage is 7 V for the TPS54719EVM-152.
Table 1. Input Voltage and Output Current Summary
EVM
INPUT VOLTAGE RANGE
OUTPUT CURRENT RANGE
TPS54719EVM-152
VIN = 3 V to 6 V
0 A to 7 A
1.2
Performance Specification Summary
A summary of the TPS54719EVM-152 performance specifications is provided in
. Specifications
are given for an input voltage of V
IN
= 5 V and an output voltage of 1.8 V, unless otherwise specified. The
TPS54719EVM-152 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. TPS54719EVM-152 Performance Specification Summary
SPECIFICATION
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V
IN
operating voltage range
3
5
6
V
V
IN
start voltage
2.79
V
V
IN
stop voltage
2.59
V
Output voltage set point
1.8
V
Output current range
V
IN
= 3 V to 6 V
0
7
A
Line regulation
I
O
= 3 A, V
IN
= 3 V to 6 V
±0.04%
Load regulation
V
IN
= 5 V, I
O
= 0 A to 7 A
±0.4%
Voltage change
–108
mV
I
O
= 1.75 A to 5.25 A,
slew rate = 30 mA/µs
Recovery time
175
μ
s
Load transient response
Voltage change
108
mV
I
O
= 5.25 A to 1.75 A,
slew rate = 30 mA/µs
Recovery time
175
μ
s
Loop bandwidth
V
IN
= 5 V, I
O
= 3.5 A
45
kHz
Phase margin
V
IN
= 5 V , I
O
= 3.5 A
62
°
Input ripple voltage
I
O
= 7 A
250
mV
PP
Output ripple voltage
I
O
= 7 A
<10
mV
PP
Output rise time
2.5
ms
Operating frequency
500
kHz
Maximum efficiency
TPS54719EVM-152, V
IN
= 3 V, I
O
= 0.5 A
95.3%
2
TPS54719EVM-152, 7-A, SWIFT™ Regulator Evaluation Module
SLVU732 – June 2012
Copyright © 2012, Texas Instruments Incorporated