Datasheet

Multi-Output Power Supplies with VCOM Amplifier
and High-Voltage Gamma Reference for LCD TVs
MAX17126/MAX17126A
______________________________________________________________________________________ 15
Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)
V
IN
SUPPLY CURRENT vs. V
IN
VOLTAGE
MAX17126 toc26
INPUT VOLTAGE (V)
INVL CURRENT (mA)
141210
1
2
3
4
5
6
7
0
8 16
ALL OUTPUT SWITCHING
NO OUTPUT SWITCHING
BUCK OUTPUT SWITCHING
OPERATIONAL AMPLIFIER
LARGE-SIGNAL STEP RESPONSE
MAX17126 toc23
0V
0V
1Fs/div
V
OPP
5V/div
V
COM
5V/div
OPERATIONAL AMPLIFIER
SMALL-SIGNAL STEP RESPONSE
MAX17126 toc25
0V
0V
100ns/div
V
OPP
(AC-COUPLED)
200mV/div
V
COM
(AC-COUPLED)
200mV/div
HIGH-VOLTAGE SWITCH CONTROL
FUNCTION (VGHM WITH 470pF LOAD)
MAX17126 toc27
0V
0V
4Fs/div
V
GVOFF
5V/div
V
GHM
10V/div