Datasheet
Background
1-2
1.1 Background
The TPS54610 evaluation module (EVM) uses the TPS54610 synchronous
buck regulator to provide a 3.3-V output over an input range of 4.0 V to 6.0 V
and over a load range of 0 A to 6 A. The EVM is designed to be easily modified.
Additional pads support multiple input and output capacitors, and the inductor
pads are large to accommodate different inductors. A jumper is provided to
allow the switching frequency to be easily changed from 350 kHz to 550 kHz.
The MOSFETs of the TPS54610 are incorporated inside the TPS54610
package. This eliminates the need for external MOSFETs and their associated
drivers. The low drain-to-source on resistance of the MOSFETs gives the
TPS54610 high efficiency and helps to keep the junction temperature low at
high output currents. The compensation components, external to the IC, allow
for an adjustable output voltage and a customizable loop response.
1.2 Performance Specification Summary
Table 1–1 provides a summary of the TPS54610 EVM performance
specifications. All specifications are given for an ambient temperature of 25°C,
unless otherwise noted.
Table 1–1.Performance Specification Summary
Specification Test Conditions Min Typ Max Units
Input voltage range 4 5 6 V
Output voltage set point 3.3 V
Output current range V
IN
= 5 V 0 6 A
Line regulation I
O
= 6 A –5 +5 mV
Load regulation V
IN
= 5 V –5 +5 mV
µ
–50 mV
PK
I
O
= 1 A to 5 A, t
(rise)
= 10 µs
100 µs
Load transient response
µ
50 mV
PK
I
O
= 5 A to 1 A, t
(fall)
= 10 µs
150 µs
Loop bandwidth V
IN
= 5 V, I
O
= 6 A 25 kHz
Phase margin V
IN
= 5 V, I
O
= 6 A 75 _
Input ripple voltage 250 mV
PP
Output ripple voltage 18 mV
PP
Output rise time 4.7 8.4 15 ms
V
SYNCH
= 0 V 280 350 420
Operating frequency
V
SYNCH
= V
IN
440 550 660
kHz
Efficiency V
IN
= 5 V, I
O
= 1.5 A 94%