Texas Instruments TPS54291EVM-431, User Manual, Page: 3 / 18

www.ti.com
TPS54291EVM-431 Electrical Performance Specifications
2 TPS54291EVM-431 Electrical Performance Specifications
Table 1. TPS54291EVM-431 Electrical and Performance Specifications
Parameter Notes and Conditions Min Nom Max Units
INPUT CHARACTERISTICS
V
IN
Input Voltage 9.6 12 13.2 V
I
IN
Input Current V
IN
= Nom, I
OUT
= Max – 2.4 2.6 A
No Load Input Current V
IN
= Nom, I
OUT
= 0 A – 12 20 mA
V
IN_UVLO
Input UVLO I
OUT
= Min to Max 4.0 4.2 4.4 V
OUTPUT CHARACTERISTICS
V
OUT1
Output Voltage 1 V
IN
= Nom, I
OUT
= Nom 3.20 3.30 3.40 V
V
OUT2
Output Voltage 2 V
IN
= Nom, I
OUT
= Nom 1.15 1.20 1.25 V
Line Regulation V
IN
= Min to Max – – 1%
Load Regulation I
OUT
= Min to Max – – 1%
V
OUT_ripple
Output Voltage Ripple V
IN
= Nom, I
OUT
= Max – – 50 mVpp
I
OUT1
Output Current 1 V
IN
= Min to Max 0 2.5 A
I
OUT2
Output Current 2 V
IN
= Min to Max 0 2.5 A
I
OCP1
Output Over Current Channel 1 V
IN
= Nom, V
OUT
= V
OUT1
–5% 1.6 2.0 2.4 A
I
OCP2
Output Over Current Channel 2 V
IN
= Nom, V
OUT
= V
OUT2
–5% 3.0 3.6 4.4 A
SYSTEMS CHARACTERISTICS
F
SW
Switching Frequency 520 600 720 kHz
η pk Peak Efficiency V
IN
=Nom – 88% –
η Full Load Efficiency V
IN
=Nom, I
OUT1
= I
OUT1
= Max – 85% –
Top Operating Temperature Range VI
N
= Min to Max, I
OUT
= Min to Max 0 25 60 °C
3 SLVU356 – January 2010 Using the TPS54291EVM-431 A 12V Input, 3.3V 1.5A and 1.2V 2.5A
Synchronous Buck Converter
Submit Documentation Feedback
Copyright © 2010, Texas Instruments Incorporated