MAX1763EUE-T Maxim Integrated Products, MAX1763EUE-T Datasheet - Page 7

• Manufacturer Part Number: MAX1763EUE-T
• Description: DC/DC Switching Converters 1.5A Low-Noise 1MHz Step-Up
• Manufacturer: Maxim Integrated Products

(Circuit of Figure 2, V
A
C
B
V
A: LX NODE, 5V/div
B: INDUCTOR CURRENT, 0.1A/div, AC COUPLED
C: OUTPUT RIPPLE, 0.1V/div, AC COUPLED
LIGHT-LOAD SWITCHING WAVEFORMS
IN
= 1.1V, V
OUT
= 3.3V, I
0.5A/div
200ns/div
2V/div
5V/div
5V/div
2V/div
1A/div
V
V
V
ONA
ONA
IN
OUT
_______________________________________________________________________________________
OUT
OUT
IN
I
I
IN
IN
= 1.2V, V
= +3.6V, V
= 20mA
OUT
= 3.3V, R
STARTUP WAVEFORMS
USING SOFT-START
POWER-ON DELAY
OUT
SS
100µs/div
2ms/div
= 510kΩ, C
= +5V, T
1.5A, Low-Noise, 1MHz, Step-Up
SS
A
Typical Operating Characteristics (continued)
= 0.1µF, R
A
B
= +25°C, unless otherwise noted.)
V
A: I
B: V
I
L
IN
= 10mA
OUT
= 2.4V, V
OUT
, 0.5A/div
LOAD-TRANSIENT RESPONSE
LOAD
, 100mV/div, AC-COUPLED
OUT
= 3kΩ
= 3.3V, I
100µs/div
OUT
= 0.2A TO 1.35A
2V/div
1A/div
5V/div
V
ONA
OUT
4
8
6
2
0
I
IN
0.01
V
V
IN
OUT
DC-DC Converter
= 2.4V
V
IN
= 3.3V
= 1.2V, V
STARTUP WAVEFORMS
NOISE SPECTRUM
NO SOFT-START
0.1
FREQUENCY (MHz)
A
B
OUT
V
A: V
B: V
IN
2ms/div
= 2.4V TO 1.4V, I
IN
OUT
= 3.3V, R
, 1V/div
LINE-TRANSIENT RESPONSE
, 5mV/div, AC-COUPLED
LOAD
1
= 3kΩ
OUT
40µs/div
= 70mA
10
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