MAX8581ETB 데이터 시트보기 (PDF) - Maxim Integrated
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MAX8581ETB
Maxim Integrated
MAX8581ETB Datasheet PDF : 10 Pages
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2.5MHz/1.5MHz Step-Down Converters
with 60mΩ Bypass in TDFN for CDMA PA Power
Typical Operating Characteristics (continued)
(VIN = 3.6V, VOUT = 1.2V, MAX8582 EV Kit, TA = +25°C, unless otherwise noted.)
LIGHT-LOAD SWITCHING WAVEFORMS
MAX8581/2 toc09
ILOAD = 50mA
ILX
100mA/div
0A
VOUT
20mV/div
AC-COUPLED
HEAVY-LOAD SWITCHING WAVEFORMS
MAX8581/2 toc10
600mA
ILX
400mA
ILOAD = 500mA
200mA
VOUT
20mV/div
AC-COUPLED
2V/div
VLX
0V
200ns/div
VLX
2V/div
0V
200ns/div
VSHDN
VOUT
IIN
ILX
SOFT-START WAVEFORMS
MAX8581/2 toc11
2V
2V/div
VIN
1V/div
0V
VOUT
100mA/div
0A
500mA/div
0A
ILX
20µs/div
LINE-TRANSIENT WAVEFORMS
MAX8581/2 toc12
RLOAD = 7.5Ω
4V
3V
VOUT
20µs/div
50mV/div
AC-COUPLED
IOUT
200mA/div
0A
LOAD TRANSIENT
MAX8581/2 toc13
50mV/div
AC-COUPLED
20µs/div
100mA/div
0A
VOUT
VREFIN
ILX
REFIN TRANSIENT RESPONSE
MAX8581/2 toc14
RLOAD = 7.5Ω
2V
REFIN TRANSIENT WITH AUTOBYPASS
MAX8581/2 toc15
VOUT
RLOAD = 7.5Ω
VOUT
2V/div
0V
1V
VREFIN
1V
1V/div
VHP
0V
0.5V
ILX
500mA/div ILX
0A
20µs/div
200mA/div
IOUT
0A
20µs/div
500mA/div IOUT
0A
HP TRANSIENT RESPONSE
WITH FORCED AUTOBYPASS
MAX8581/2 toc16
RLOAD = 7.5Ω
VREFIN = 0.6V 2V/div
0V
1V/div
0V
500mA/div
0A
20µs/div
500mA/div
0A
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