MAX8805YEWEAA+T datasheet(8/21 Pages) MAXIM

Part #	MAX8805YEWEAA+T

Description	600mA PWM Step-Down Converters in 2mm x 2mm WLP for WCDMA PA Power

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Manufacturer	MAXIM [Maxim Integrated Products]

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600mA PWM Step-Down Converters in

2mm x 2mm WLP for WCDMA PA Power

8

_______________________________________________________________________________________

Typical Operating Characteristics (continued)

(VIN1A = VIN1B = VIN2 = 3.6V, VPA = 1.2V, VLDO1 = 2.85V, VLDO2 = 2.85V, RPA = 7.5

Ω, circuit of Figure 5, TA = +25°C, unless other-

wise noted.)

10

μs/div

PA STEP-DOWN CONVERTER OUTPUT

VOLTAGE TRANSIENT RESPONSE

VREFIN

VPA

500mV/div

500mA/div

MAX8805Y/Z toc26

ILX

0.5V

1V

0.5V

20

μs/div

PA STEP-DOWN CONVERTER FORCED

BYPASS-FET TRANSIENT RESPONSE

VHP

VPA

2V/div

500mA/div

MAX8805Y/Z toc27

ILX

0.5V

0V

1.2V

3.6V

10

μs/div

PA STEP-DOWN CONVERTER LOAD

TRANSIENT RESPONSE (MAX8805Y)

IPA

ILX

500mA/div

100mV/div

MAX8805Y/Z toc25

VPA

AC-COUPLED

0mA

500mA

0mA

10

μs/div

PA STEP-DOWN CONVERTER LOAD

TRANSIENT RESPONSE (MAX8805Z)

IPA

ILX

500mA/div

100mV/div

MAX8805Y/Z toc24

VPA

AC-COUPLED

0mA

500mA

0mA

10

μs/div

PA STEP-DOWN CONVERTER LINE

TRANSIENT RESPONSE (MAX8805Z)

VIN1

VPA

AC-COUPLED

50mV/div

500mV/div

200mA/div

MAX8805Y/Z toc22

ILX

4.0V

3.5V

4.0V

10

μs/div

PA STEP-DOWN CONVERTER LINE

TRANSIENT RESPONSE (MAX8805Y)

VIN1

VPA

AC-COUPLED

50mV/div

500mV/div

200mA/div

MAX8805Y/Z toc23

ILX

4.0V

3.5V

4.0V

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MAX8805YEWEAA+T Datasheet(PDF) 8 Page - Maxim Integrated Products

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