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Maxim > Solutions > Cordless Phones

Step-Up System Power

DATA SHEETS
Display Title / Parts Key Advantages
QV  PDF Tiny 500mA, 4MHz/2MHz Synchronous Step-Down DC-DC Converters
MAX8640Y, MAX8640Z

Smallest 2mm x 2.1mm SC70 Package, the Industry's Smallest Total Solution Size, and Most Robust 4MHz/2MHz Step-Down DC-DC Converters on the Market that Can Deliver 500mA with Over 93% Efficiency
QV  PDF 2.5MHz/1.5MHz Step-Down Converters with 60mohm 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 Low Input/Output Voltage Step-Up DC-DC Converter with RESET-bar
MAX1947

Smallest 1.8V Output Step-Up Converter with TrueShutdown™ for 1-/2-Cell Alkaline Handhelds
QV  PDF 4MHz, 500mA Synchronous Step-Down DC-DC Converters in Thin SOT and TDFN
MAX8560, MAX8561, MAX8562

First 4MHz Step-Down DC-DC Converters Deliver 500mA with Over 90% Efficiency in SOT23 and TDFN
QV  PDF High-Efficiency, Low-Supply-Current, Compact, Step-Up DC-DC Converters
MAX1674, MAX1675, MAX1676

Compact, Low-Cost, Low-Noise Design: Inductor Damping Switch Eliminates Ringing, Improves EMI



Key Specifications:   Step-Down Switching Regulators
Part Number VIN (min) (V) VIN (max) (V) Min. VOUT (V) Max. VOUT (V) Preset VOUT (V) IOUT (A) IOUT (A) Output Adj. Method Operating Current, ICC (max) (mA) Number of DC-DC Outputs Operating Freq. (kHz) Package Smallest Available Package (max w/pins) (mm2)
MAX8581  2.7 5.5 0 5  -  0.6 0.6 Dyn. REF In
Resistor
4 1 2500 TDFN-EP/10 10
MAX8582  2.7 5.5 0 5  -  0.6 0.6 Dyn. REF In
Resistor
4 1 1500 TDFN-EP/10 10
MAX8640Y  2.7 5.5 1 2.5 1.0
1.1
1.2
1.3
1.5
1.8
2.5
0.5 0.5 Preset
Resistor
0.048 1 2000 µDFN/6
SC70/6
2
MAX8640Z  2.7 5.5 1.1 1.8 1.1
1.2
1.3
1.5
1.8
0.5 0.5 Preset
Resistor
0.048 1 4000 µDFN/6
SC70/6
2
MAX8560  2.7 5.5 0.6 2.5  -  0.5 0.5 Resistor 0.08 1 4000 TSOT/5 8
MAX8561  2.7 5.5 0.6 2.5  -  0.5 0.5 Resistor 0.08 1 4000 TDFN-EP/8 10
MAX8562  2.7 5.5 0.6 2.5  -  0.5 0.5 Resistor 0.08 1 4000 TDFN-EP/8 10
See All Step-Down Switching Regulators (252)

Key Specifications:   Step-Up Switching Regulators
Part Number VIN (min) (V) VIN (max) (V) Min. VOUT (V) Max. VOUT (V) Preset VOUT (V) IOUT (A) IOUT (A) Output Adj. Method Operating Current, ICC (max) (mA) Number of DC-DC Outputs Package Smallest Available Package (max w/pins) (mm2)
MAX1947  0.7 3.6 1.8 3.3 1.8
1.9
2.5
2.7
3.0
3.3
0.25 0.25 Preset 0.11 1 TDFN-EP/8 10
MAX1674  0.7 5.5 2 5.5 3.3
5.0
0.3 0.3 Preset
Resistor
0.035 1 µMAX/8 16
MAX1675  0.7 5.5 2 5.5 3.3
5.0
0.3 0.3 Preset
Resistor
0.035 1 µMAX/8 16
MAX1676  0.7 5.5 2 5.5 3.3
5.0
0.3 0.3 Preset
Resistor
0.06 1 µMAX/10 15
See All Step-Up Switching Regulators (93)



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