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Maxim > Solutions > Cellular Handsets

GaAsFET Bias Supplies

DATA SHEETS
Display Title / Parts Key Advantages
QV  PDF 60mA, SOT23 Inverting Charge Pump with Shutdown
MAX1697

EMI-Friendly Ultra-Small Charge Pump
QV  PDF SOT23, Switched-Capacitor Voltage Inverters with Shutdown
MAX1719, MAX1720, MAX1721

Smallest, High-Efficiency Bias for Small LCD/GaAsFET PA Bias: Small Cap Size, No Inductors and Low Supply Current
QV  PDF Low-Noise Bias Supply in µMAX with Power OK for GaAsFET PA
MAX881R

1mVP-P Output Voltage Ripple
QV  PDF Switched-Capacitor Voltage Inverters
MAX870, MAX871

Compact, Inductorless, Low-Profile Inverter Fits 0.025 Sq. Inch , Biases GaAsFET PA
QV  PDF Low-Noise, Dual-Output, Regulated Charge Pump for GaAsFET, LCD, and VCO Supplies
MAX768

Low Output Ripple and Synchronizable Switching Frequency
QV  PDF Switched-Capacitor Voltage Inverters
MAX828, MAX829

Inductorless Power Supply for Pager LCD
QV  PDF Low-Noise, Regulated, -2V GaAsFET Bias
MAX840, MAX843, MAX844

Operates with Small Capacitors, as Low as 0.22 µF
QV  PDF Low-Noise, Regulated, Negative Charge Pump Power Supplies for GaAsFET Bias
MAX850, MAX851, MAX852, MAX853

1mVP-P Output Voltage Ripple (MAX853)



Key Specifications:   Charge Pumps
Part Number Topology VIN (min) (V) VIN (max) (V) Operating Current, ICC (max) (mA) Unadjusted VOUT (V) Min. Adjustable VOUT (V) Max. Adjustable VOUT (V) IOUT (typ) (A) Operating Frequency (kHz) Features Package Operating Temp. Range (°C)
MAX828  Inverter
Unregulated
1.5 5.5 0.09 -VIN  -   -  0.025 12  -  SOT-23/5 -40 to +85
0 to +70
MAX829  Inverter
Unregulated
1.5 5.5 0.26 -VIN  -   -  0.025 35  -  SOT-23/5 -40 to +85
0 to +70
MAX1697  Inverter
Unregulated
1.25 5.5 0.3 -VIN  -   -  0.06 250
Shutdown
SOT-23/6 -40 to +85
MAX1719  Inverter
Unregulated
1.5 5.5 0.65 -VIN  -   -  0.025 125
Shutdown
SOT-23/5
SOT-23/6
-40 to +85
MAX1720  Inverter
Unregulated
1.5 5.5 0.09 -VIN  -   -  0.025 12
Shutdown
SOT-23/5
SOT-23/6
-40 to +85
MAX1721  Inverter
Unregulated
1.5 5.5 0.65 -VIN  -   -  0.025 125
Shutdown
SOT-23/5
SOT-23/6
-40 to +85
MAX840  Inverter
Regulated
2.5 10 1.3 -2 -VIN-0.6 -0.5 0.01 100
Shutdown
SOIC/8 -20 to +85
-40 to +85
MAX843  Inverter
Regulated
2.5 10 1.3 -2 -VIN-0.6 -0.5 0.01 100
Shutdown
SOIC/8 -20 to +85
-40 to +85
MAX844  Regulated 2.5 10 1.3 -2 -VIN-0.6 -0.5 0.01 100
Shutdown
SOIC/8 -20 to +85
-40 to +85
MAX850  Inverter
Regulated
4.5 10 3 -4.1 -VIN-0.6 -0.5 0.005 100
Shutdown
SOIC/8 -20 to +85
-40 to +85
MAX851  Inverter
Regulated
4.5 10 3 -4.1 -VIN-0.6 -0.5 0.005 100
Shutdown
SOIC/8 -20 to +85
-40 to +85
MAX852  Inverter
Regulated
4.5 10 3 -4.1 -VIN-0.6 -0.5 0.005 100
Shutdown
SOIC/8 -20 to +85
-40 to +85
MAX853  Inverter
Regulated
4.5 10 3 -9 -VIN-0.6 -0.5 0.005 100
Shutdown
SOIC/8 -20 to +85
-40 to +85
MAX768  Dual Output
Inverter
Regulated
2.5 5.5 0.8 -5
5
-11 11 0.005 240
Adjustable Freq.
External Sync.
Shutdown
QSOP/16 -40 to +85
MAX870  Inverter
Unregulated
1.4 5.5 1 -VIN  -   -  0.025 125  -  SOT-23/5 -40 to +85
MAX871  Inverter
Unregulated
1.4 5.5 3.8 -VIN  -   -  0.025 500  -  SOT-23/5 -40 to +85
MAX881R  Inverter
Regulated
2.5 5.5 0.95 -2 -VIN-0.6 -0.5 0.01 100
Shutdown
uMAX/10 -40 to +85
See All Charge Pumps (51)



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