Datasheet

TPS5103
MULTIPLE MODE SYNCHRONOUS DC/DC CONTROLLER
SLVS240A – SEPTEMBER 1999 – REVISED MAY 2001
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range, V
CC
= 7 V
(unless otherwise noted) (continued)
softstart
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
I
(CTRL)
Softstart current 1.9 2.5 3 µA
V
IT(high)
3.9
V
V
IT(low)
Threshold voltage (SKIP mode)
2.6
V
output voltage monitor
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
IT
Threshold voltage 1.08 1.18 1.28 V
driver deadtime section
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
T
(DRVLH)
Low side to high side 90 ns
T
(DRVHL)
High side to low side 110 ns
whole device
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
I
CC
Supply current 0.5 1.2 mA
I
O(sd)
Shutdown current STBY = 0 V 0.01 10 µA
SOFTSTART
LH
INV
OUT_u
FB
LL
C
T
OUT_d
R
T
OUTGND
GND
TRIP
REF
COMP
PWM/SKIP
VREF5
STBY
VREG5V_IN
5V
7V
VCC_SENSE
0.1 µF
0.1 µF
V
CC
Figure 2. Test Circuit