User Manual

MAX17075
Boost Regulator with Integrated Charge Pumps,
Switch Control, and High-Current Op Amp
_______________________________________________________________________________________ 9
OPERATION AMPLIFIER
FREQUENCY RESPONSE
MAX17075 toc16
FREQUENCY (kHz)
GAIN (dB)
1k 10k
-6
-5
-4
-3
-1
-2
0
1
2
-8
-7
100 100k
100pF LOAD
NO LOAD
OPERATIONAL AMPLIFIER RAIL-TO-RAIL
INPUT/OUPUT WAVEFORMS
MAX17075 toc17
2
μ
s/div
0V
V
POS
5V/div
V
VCOM
5V/div
0V
OPERATIONAL AMPLIFIER
LOAD-TRANSIENT RESPONSE
MAX17075 toc18
2
μ
s/div
0V
V
VCOM
(AC-COUPLED)
200mV/div
I
VCOM
50mV/div
0A
OPERATIONAL AMPLIFIER
LARGE-SIGNAL STEP RESPONSE
MAX17075 toc19
40
μ
s/div
0V
0V
V
POS
5V/div
V
VCOM
5V/div
OPERATIONAL AMPLIFIER
SMALL-SIGNAL STEP RESPONSE
MAX17075 toc20
40
μ
s/div
0mV
0mV
V
POS
(AC-COUPLED)
100mV/div
V
VCOM
(AC-COUPLED)
100mV/div
SUP SUPPLY CURRENT
vs. SUP SUPPLY VOLTAGE
MAX17075 toc22
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
14 1681012
3.55
3.65
3.60
3.70
3.75
3.80
3.90
3.85
3.95
4.00
3.50
618
NO SWITCHING
HIGH-VOLTAGE SWITCH
CONTROL FUNCTION
MAX17075 toc21
10
μ
s/div
0V
0V
V
GON
10V/div
V
CTL
5V/div
Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)