MAX8805Y MAXIM [Maxim Integrated Products], MAX8805Y Datasheet - Page 7

• Manufacturer Part Number: MAX8805Y
• Description: 600mA PWM Step-Down Converters in 2mm x 2mm WLP for WCDMA PA Power
• Manufacturer: MAXIM [Maxim Integrated Products]

(V
wise noted.)
IN1A
= V
IN1B
AC-COUPLED
AC-COUPLED
= V
V
PA_EN
IN2
V
V
V
V
V
I
I
_______________________________________________________________________________________
_______________________________________________________________________________________
I
PA
LX
PA
LX
LX
PA
LX
LX
= 3.6V, V
PA STEP-DOWN CONVERTER LIGHT-LOAD
2mm x 2mm WLP for WCDMA PA Power
SWITCHING WAVEFORMS (MAX8805Z)
SWITCHING WAVEFORMS (MAX8805Z)
600mA PWM Step-Down Converters in
PA STEP-DOWN HEAVY-LOAD
PA STEP-DOWN SOFT-START
WAVEFORMS (MAX8805Z)
PA
= 1.2V, V
400ns/div
400ns/div
20μs/div
V
V
PA
PA
= 1.2V, I
LDO1
= 1.2V, I
Typical Operating Characteristics (continued)
PA
MAX8805Y/Z toc20
MAX8805Y/Z toc18
MAX8805Y/Z toc16
PA
= 2.85V, V
= 500mA
= 50mA
2V/div
1V/div
500mA/div
20mV/div
2V/div
20mV/div
200mA/div
2V/div
500mA/div
LDO2
= 2.85V, R
AC-COUPLED
AC-COUPLED
PA
V
PA_EN
= 7.5Ω, circuit of Figure 5, T
V
V
V
V
V
I
I
I
PA
LX
PA
LX
LX
PA
LX
LX
PA STEP-DOWN CONVERTER LIGHT-LOAD
SWITCHING WAVEFORMS (MAX8805Y)
SWITCHING WAVEFORMS (MAX8805Y)
PA STEP-DOWN SOFT-START
PA STEP-DOWN HEAVY-LOAD
WAVEFORMS (MAX8805Y)
400ns/div
400ns/div
20μs/div
V
V
PA
PA
= 1.2V, I
= 1.2V, I
A
MAX8805Y/Z toc21
MAX8805Y/Z toc17
MAX8805Y/Z toc19
PA
PA
= +25°C, unless other-
= 500mA
= 50mA
2V/div
200mA/div
20mV/div
2V/div
1V/div
200mA/div
20mV/div
2V/div
500mA/div
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