Datasheet

Description www.ti.com
12 TPS40305EVM-488 Silk Screen (Top View)........................................................................... 14
13 TPS40305EVM-488 Top Copper (Top View) .......................................................................... 15
14 TPS40305EVM-488 Bottom Copper (Top View) ...................................................................... 15
15 TPS40305EVM-488 Internal 1 (X-Ray Top View)..................................................................... 16
16 TPS40305EVM-488 Internal 2 (X-Ray Top View)..................................................................... 16
List of Tables
1 TPS40305EVM-488 Electrical and Performance Specifications...................................................... 2
2 Test Point Description ...................................................................................................... 5
3 TPS40305EVM-488 Bill of Materials.................................................................................... 16
1 Description
The TPS40305EVM-488 is designed to use a regulated 12-V (8V – 14V) bus voltage to provide a
regulated 1.8-V output at up to 10A of load current. The TPS40305EVM-488 is designed to demonstrate
the TPS40305 controller and TI NexFETs in a typical 12-V bus to low-voltage application while providing a
number of non-invasive test points to evaluate the performance of the TPS40305 and TI NexFETs in a
given application.
1.1 Applications
• High-current, low-voltage FPGA or microcontroller core supplies
• High-current point of load modules
• Telecommunications equipment
• Computer peripherals
1.2 Features
• 8-V to 14-V input voltage rating
• 1.8-V ± 2% output voltage rating
• 10-A steady state load current
• 1.2-MHz switching frequency
• Simple access to IC features including Power Good, Enable, Soft-Start and Error Amplifier
• Convenient test points for simple, non-invasive measurements of converter performance
2 TPS40305EVM-488 Electrical Performance Specifications
Table 1. TPS40305EVM-488 Electrical and Performance Specifications
Parameter Notes and Conditions Min Typ Max Unit
Inputs Characteristics
V
IN
Input voltage 8 12 14 V
I
IN
Input current V
IN
= 12V, I
OUT
= 10A – 1.7 2.00 A
No load input current V
IN
= 12V, I
OUT
= 0A – 47 60 mA
V
IN_UVLO
Input UVLO I
OUT
= 10A 3.0 V
Outputs Characteristics
V
OUT1
Output voltage 1 V
IN
= 12V, I
OUT
= 10A 1.76 1.8 1.84 V
Line regulation V
IN
= 8V to 14V – – 0.5%
Load regulation I
OUT
= 0A to 10A – – 0.5%
V
OUT_ripple
Output voltage ripple V
IN
= 12V, I
OUT
= 10A – – 24 mVpp
I
OUT1
Output current 1 V
IN
= 8V to 14V 0 10 A
Systems Characteristics
F
SW
Switching frequency 1000 1200 1400 kHz
2
TPS40305EVM-488 SLUU406–February 2010
Submit Documentation Feedback
Copyright © 2010, Texas Instruments Incorporated