Regulated Inverting Charge Pumps

Analog Devices’ family of 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. By eliminating the inductor, these switched capacitor converters provide a small solution footprint and a simpler design. Furthermore, by incorporating spread spectrum technology on-chip, both input and output noise are significantly reduced.
Product Selection Table

Regulated Inverting Charge Pumps

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SortOrderPart#Number of OutputsVin
(min)
(V)
Vin
(max)
(V)
Output Current
(typ)
(A)
Output VoltageIsupply
(typ)
(A)
Frequency
(typ)
(Hz)
US Price 1000 to 4999
($ US)
1LTC3265 2 4.5 32 50m Adj 85µ 500k $3.80 (LTC3265EFE#PBF)
2LTC3260 3 4.5 32 100m Adj 100µ 500k $3.40 (LTC3260EDE#PBF)
3ADM8832 3 2.6 3.6 4m -10.2V, 15.3V, 5.1V---
4LTC1983 1 3 5.5 100m -3V, -5V 25µ 900k $1.81 (LTC1983ES6-3#TRPBF)
5LTC1261L 1 2.7 5.25 20m -4.5V, -4V, Adj 650µ 650k $1.70 (LTC1261LCS8#PBF)
6LTC1551L 1 2.7 5.25 20m -4.1V, Adj 3.5m 900k $1.70 (LTC1551LCS8#PBF)
7LTC1550L 1 2.7 5.25 20m -2.5V, -2V, -4.1V, -4V, Adj 4.2m 900k $1.70 (LTC1550LCS8-4.1#PBF)
8ADP3605 1 3 6 120m -3V---
9LTC1551 1 2.7 5.25 20m -4.1V, Adj 4.2m 900k $2.25 (LTC1551CS8-4.1#PBF)
10LTC1550 1 2.7 5.25 20m -2.5V, -2V, -4.1V, -4V, Adj 4.2m 900k $2.25 (LTC1550CS8-4.1#PBF)
11LTC1261 1 3 8 12m -4.5V, -4V, Adj 600µ 550k $1.75 (LTC1261CS8#PBF)