MAX8805XEWEAA+T Maxim Integrated Products, MAX8805XEWEAA+T Datasheet - Page 7

• Manufacturer Part Number: MAX8805XEWEAA+T
• Description: IC PWM STEP-DN CONV 650MA 16-WLP
• Manufacturer: Maxim Integrated Products

Specifications of MAX8805XEWEAA+T

• Applications: Converter, WCDMA PA Power
• Voltage - Input: 2.7 ~ 5.5 V
• Number Of Outputs: 1
• Voltage - Output: 0.4 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-WLP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(V
erwise noted.)
IN1A
600mA/650mA PWM Step-Down Converters in
= V
IN1B
AC-COUPLED
AC-COUPLED
= V
IN2
SWITCHING WAVEFORMS (MAX8805X/MAX8805Z)
SWITCHING WAVEFORMS (MAX8805X/MAX8805Z)
V
V
-10
-30
-50
PA_
V
PA_
V
50
30
10
I
I
_______________________________________________________________________________________
_______________________________________________________________________________________
LX
LX
LX
LX
REFIN vs. REFIN TO OUT GAIN (MAX8805X)
= 3.6V, V
0.4
PA STEP-DOWN CONVERTER LIGHT-LOAD
2mm x 2mm WLP for WCDMA PA Power
0.5 0.6
PA STEP-DOWN HEAVY-LOAD
PA_
V
IN1
0.7 0.8
REFIN VOLTAGE (V)
= 3.2V, NO LOAD
= 1.2V, V
400ns/div
400ns/div
V
PA_
V
PA_
0.9 1.0 1.1 1.2 1.3
V
= 1.2V, I
IN1
= 1.2V, I
LDO1
= 4.2V, NO LOAD
MAX8805W/X/Y/Z toc18
MAX8805W/X/Y/Z toc20
PA_
Typical Operating Characteristics (continued)
PA_
= 500mA
= 2.85V, V
= 50mA
20mV/div
2V/div
20mV/div
2V/div
200mA/div
500mA/div
LDO2
= 2.85V, R
AC-COUPLED
AC-COUPLED
PA
SWITCHING WAVEFORMS (MAX8805W/MAX8805Y)
SWITCHING WAVEFORMS (MAX8805W/MAX8805Y)
V
V
-10
-30
-50
50
30
10
PA_
V
PA_
V
= 7.5Ω, circuit of Figure 5, T
I
I
LX
LX
LX
LX
REFIN vs. REFIN TO OUT GAIN (MAX8805W)
0.4
PA STEP-DOWN CONVERTER LIGHT-LOAD
0.5 0.6
PA STEP-DOWN HEAVY-LOAD
V
IN1
0.7 0.8
REFIN VOLTAGE (V)
= 3.2V, NO LOAD
400ns/div
400ns/div
V
V
PA_
PA_
V
0.9 1.0 1.1 1.2 1.3
IN1
= 1.2V, I
= 1.2V, I
= 4.2V, NO LOAD
MAX8805W/X/Y/Z toc21
MAX8805W/X/Y/Z toc19
PA_
PA_
A
= 500mA
= +25°C, unless oth-
= 50mA
20mV/div
2V/div
20mV/div
2V/div
500mA/div
200mA/div
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