ISL6227 Datasheet, PDF (9/27 Pages) Intersil Corporation – Dual Mobile-Friendly PWM Controller with DDR Option

ISL6227
Typical Operation Performance (Continued)
V^VD^DDD^QQ
P^PG^GOO^OO^DD¹1
V^VT^TTT
I_IL_L1₁
FIGURE 25. VIN = 19V, VDDQ 3A STEP LOAD, VTT 0A LOAD
VVDDDDQQ
PGOOOODD11
VVTTTT
ILIL11
FIGURE 26. VIN = 19V, VDDQ 3A STEP LOAD, VTT 3A LOAD
VVDDDDQQ
V_VT_TT_T
OOCCSSEETT22
IL^I2^L2
FIGURE 27. VIN = 19V, LOAD STEP ON VTT,
VDDQ HYS MODE, 0.14A
VVDDDQQ
VVinIN
V^VT^TT^T
O_OC_CS_SE_ET_T2₂
FIGURE 29. INPUT LINE TRANSIENT IN DDR MODE
9
VVDDDQ
V^VTT^TT
O_OC_CS_SE_ET_T2₂
IL^IL2²
FIGURE 28. VIN = 19V, LOAD STEP ON VTT,
VDDQ PWM MODE, 0.14A
VVTTTT
ENN11
V^VD^DD^DQQ
IIL11
FIGURE 30. VTT FOLLOWS VDDQ, ENABLE 2 IS HIGH
FN9094.7
May 4, 2009