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Back-Up Battery Switch-Over Power Supplies



DATA SHEETS
Part Number Description Key Advantages
MAX8568A, MAX8568B Complete Backup-Management ICs for Lithium and NiMH Batteries
MAX1722, MAX1723, MAX1724 1.5µA IQ, Step-Up DC-DC Converters in Thin SOT23-5
MAX1832, MAX1833, MAX1834,
...		 High-Efficiency Step-Up Converters with Reverse Battery Protection



Key Specifications:

Battery Backup Circuits
Part Number Reset Thresh.
(V)		 ICC
(µA)		 Features RoHS Available Oper. Temp.
(°C)		 Package/Pins Smallest Available Pckg.
(mm2)
max max w/pins
MAX8568A 
2.5 to 3.3
3.3 to 5.5
 5
Adjustable Reset Input
Batt Freshness Seal
Power Fail Comparator
 Yes -40 to +85
TQFN/16
 9.6
MAX8568B  See Data Sheet
TQFN/16
See All Battery Backup Circuits (86)

Step-Up 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
MAX1722  0.8 5.5 2 5.5 - 0.15 0.15 Resistor 1 -
TSOT/5
 8.3
MAX1723  0.8 2 5.5 - Resistor -
TSOT/5
 8.3
MAX1724  0.8 2.7 5
2.7
3
3.3
5
 Preset -
TSOT/5
 8.3
MAX1832  1.5 2 5.5 - Resistor 500
SOT/6
 9
MAX1833  1.5 3.3 3.3 3.3 Preset 500
SOT/6
TDFN-EP/6
 9
MAX1834  1.5 2 5.5 - Resistor 500
SOT/6
 9
MAX1835  1.5 3.3 3.3 3.3 Preset 500
SOT/6
 9
See All Step-Up Switching Regulators (95)





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