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Maxim > Solutions > Cellular Handsets

PA Buck Converters

DATA SHEETS
Display Title/Parts Key Advantages
QV  PDF Dual PWM Step-Down Converter in a 2mm x 2mm Package for WCDMA PA and RF Power
MAX8896

Small (4mm)² Package Provides Power to WCDMA PA Modules and RF Transceiver
QV  PDF 600mA/650mA PWM Step-Down Converters in 2mm x 2mm WLP for WCDMA PA Power
MAX8805, MAX8805W, MAX8805X, MAX8805Y, MAX8805Z

Small (4mm)² Package Provides Power and Bias to 2 WCDMA PA Modules
QV  PDF 2.5MHz/1.5MHz Step-Down Converters with 60mΩ Bypass in TDFN for CDMA PA Power
MAX8581, MAX8582

Overall Smallest Solution 1.5MHz Step-Down DC-DC Converters Deliver 600mA with Up to 94% Efficiency in a Small TDFN Package
QV  PDF PWM Step-Down DC-DC Converters with 75mΩ Bypass FET for WCDMA and cdmaOne Handsets
MAX8506, MAX8507, MAX8508

PWM Step-Down DC-DC Converters with 75mΩ Bypass FET for WCDMA and cdmaOne™ Handsets
QV  PDF WCDMA Cellular Phone 600mA Buck Regulators
MAX1820, MAX1820Y, MAX1820Z, MAX1821, MAX1821X




Key Specifications:  Step-Down Switching Regulators
Part Number VIN
(V)
VIN
(V)
VOUT
(V)
VOUT
(V)
Preset VOUT
(V)
Max. IOUT
(A)
Max. IOUT
(A)
Output Adjust. Method DC-DC Outputs Oper. Freq.
(kHz)
Package/Pins Smallest Available Pckg.
(mm2)
min max min max max w/pins
MAX8896  2.7 5.5 0.5 5
2.8
3.1
0.7 0.7
Dyn. REF In
Preset
2 2000
UCSP (R)/16
4.5
MAX8805  2.7 0.4 5.5 - 0.65 0.65
Dyn. REF In
Resistor
1 4000
WLP/16
4.5
MAX8581  2.7 0 5 - 0.6 0.6
Dyn. REF In
Resistor
1 2500
TDFN-EP/10
9.6
MAX8582  2.7 0 5 - 0.6 0.6
Dyn. REF In
Resistor
1 1500
TDFN-EP/10
9.6
MAX8506  2.6 0.4 3.5 - 0.6 0.6
Dyn. REF In
Resistor
1 1000
TQFN/16
16.8
MAX8507  2.6 0.4 3.5 - 0.6 0.6
Dyn. REF In
Resistor
1 1000
TQFN/16
16.8
MAX8508  2.6 0.75 3.5 - 0.6 0.6 Resistor 1 1000
TQFN/16
16.8
MAX1820  2.6 0.4 3.5 - 0.6 0.6
Dyn. REF In
Preset
Resistor
1 1000
µMAX/10
UCSP/10
3.3
MAX1821  2.6 1.25 5.5 - 0.6 0.6
Preset
Resistor
1 1000
µMAX/10
15.4
See All Step-Down Switching Regulators (264)



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