Texas Instruments Evaluation Module for TPS51217 20A Synchronous Step Down Controller with DCAP™ Mode TPS51217EVM-533 TPS51217EVM-533 データシート
製品コード
TPS51217EVM-533
t - Time - 10 ms/div
EN (5 V/div)
PGOOD (5 V/div)
V
(0.5 V/div)
OUT
Auto-Skip
V
V
= 12 V,
I
= 0 A
IN
OUT
DRVL (5 V/div)
Auto-Skip
V
V
= 12 V
I
= 20 A
IN
OUT
EN (5 V/div)
V
(0.5 V/div)
OUT
PGOOD (5 V/div)
t – Time – 500 s/div
m
Auto-Skip
V
V
= 12 V,
I
= 0 A
IN
OUT
EN (5 V/div)
PGOOD (5 V/div)
V
(0.5 V/div)
OUT
t - Time - 500 s/div
m
0.5 V pre-biased
Performance and Typical Characteristic Curves
www.ti.com
6.7
Start and Stop
Figure 14. Enable Turn-On Waveform at 0.9-V Output
Figure 15. Enable Turn-Off Waveform at 0.9-V Output
Figure 16. Pre-Bias Turn-On Waveform at 0.9-V Output
12
Using the TPS51217EVM-533, High-Performance, Single-Synchronous
SLUU420 – MAY 2010
Step-Down Controller for Notebook Power Supply
Copyright © 2010, Texas Instruments Incorporated