High Voltage Charge Pumps

Analog Devices’ family of high voltage charge pumps offers the widest selection of simple and compact inductorless dc-to-dc converter designs. These converters can be used to step up, step down, or invert an input voltage. Key features include fault protection, low quiescent current, and automatic mode switching to maintain regulation. By eliminating the inductor, these switched capacitor converters provide a small solution footprint and a simpler design.
Product Selection Table

High Voltage Charge Pumps

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SortOrderPart#Vin
(min)
(V)
Vin
(max)
(V)
Output Current
(typ)
(A)
Output VoltageFunctionIsupply
(typ)
(A)
CommentsUS Price 1000 to 4999
($ US)
1LTC7820 6 72 20 12V, -12V, 24V, 48V or higher, up to 500W+ Doubler or Inverter, Fixed Ratio High Power DC/DC: Divider 1.5m Fixed Ratio High Power Inductorless (Charge Pump) DC/DC Controller $4.70 (LTC7820EUFD#PBF)
2LTC3256 5.5 38 350m 3.3V, 5V Regulated Step-Down Charge Pump 20µ Wide VIN Range Dual Output 350mA Step-Down Charge Pump with Watchdog Timer $2.95 (LTC3256EMSE#PBF)
3LTC3255 4 48 50m Adj (2.4V to 12.5V) Regulated Step-Down Charge Pump 30µ Wide VIN Range Fault Protected 50mA Step-Down Charge Pump $2.30 (LTC3255EDD#PBF)
4LTC3245 2.7 38 250m 5V or Adjustable (2.5V to 5V), Fixed 3.3V Regulated Buck-Boost Charge Pump 18µ Wide VIN Range, Low Noise, 250mA Buck-Boost Charge Pump $2.80 (LTC3245EDE#PBF)
5LTC3261 4.5 32 100m -Adj Regulated Inverting Charge Pump 60µ High Voltage Low Quiescent Current Inverting Charge Pump $2.87 (LTC3261EMSE#PBF)
6LTC3260 4.5 32 100m Adj Negative Linear Regulator, Positive Linear Regulator, Regulated Inverting Charge Pump 100µ Low Noise Dual Supply Inverting Charge Pump $3.40 (LTC3260EMSE#PBF)