MAX8506 MAXIM [Maxim Integrated Products], MAX8506 Datasheet - Page 5

• Manufacturer Part Number: MAX8506
• Description: PWM Step-Down DC-DC Converters with 75mohm Bypass FET for WCDMA and cdmaOne Handsets
• Manufacturer: MAXIM [Maxim Integrated Products]

(V
Bypass FET for WCDMA and cdmaOne Handsets
BATT
PWM Step-Down DC-DC Converters with 75m Ω
= V
BATTP
1.8V
0
= 3.6V, SHDN = SKIP = BATT, HP = GND, T
LIGHT-LOAD SWITCHING WAVEFORM
V
V
LOAD = 10Ω
V
EXITING AND ENTERING SHUTDOWN
OUT
OUT
OUT
_______________________________________________________________________________________
= 0.4V
= 1.8V, R
= 1.8V, R
HP TRANSIENT RESPONSE
IN PWM MODE
LOAD
LOAD
400µs/div
100µs/div
20µs/div
= 10Ω
= 10Ω
SKIP = BATT
SKIP = GND
MAX8506 toc09
MAX8506 toc11
MAX8506 toc13
Typical Operating Characteristics (continued)
V
2V/div
V
AC-COUPLED
5mV/div
SHDN
2V/div
V
1V/div
HP
1V/div
V
1V/div
LX
OUT
OUT
OUT
A
= +25°C, unless otherwise noted.) (See the Typical Application Circuits.)
3.4V
0
0
V
LIGHT-LOAD SWITCHING WAVEFORM
V
V
LOAD = 10Ω, SKIP = GND
OUT
REFIN
OUT
REFIN TRANSIENT RESPONSE
= 1.2V, R
LINE TRANSIENT RESPONSE
= 0.4V
= 0.284V TO 1.420V
IN NORMAL MODE
LOAD
20µs/div
20µs/div
1µs/div
= 10Ω
SKIP = BATT
SKIP = GND
MAX8506 toc12
MAX8506 toc14
MAX8506 toc10
V
200mV/div
V
AC-COUPLED
20mV/div
REFIN
1V/div
V
1V/div
V
2V/div
V
AC-COUPLED
20mV/div
OUT
IN
OUT
LX
OUT
5