Regulated Step-Up 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
Latest Resources
LT Journal
- Sep 2001 LTC3202 Charge Pump Improves Efficiency for Powering White LEDs PDF
- Feb 2001 Charge Pump Powers White LEDs PDF
- Sep 1999 Low Noise Boost VCO Power Supply for Portable Applications PDF
- Feb 1999 Switched Capacitor Voltage Regulator Provides Current Gain PDF
- May 1998 Battery-Powered Buck-Boost Converter Requires No Magnetics PDF
- Step-Up/Step-Down Charge Pump DC/DC Converter Provides up to 150mA in a Tiny 2mm × 2mm DFN Package
Application Notes
- AN29 - Some Thoughts on DC-DC Converters PDF
- AN23 - Micropower Circuits for Signal Conditioning PDF
- AN30 - Switching Regulator Circuit Collection PDF
- AN90 - Current Sources for Fiber Optic Lasers: A Compendium of Pleasant Current Events PDF
- AN84 - Linear Technology Magazine Circuit Collection, Volume IV PDF
- AN70 - A Monolithic Switching Regulator with 100µV Output Noise PDF
- AN66 - Linear Technology Magazine Circuit Collection, Volume II PDF
Design Notes
- DN231 - Tiny Regulators Drive White LED Backlights PDF
- DN243 - New Charge Pumps Offer Low Input and Output Noise PDF
- DN189 - Step-Up/Step-Down DC/DC Conversion Without Inductors PDF
- DN142 - Ultralow Quiescent Current DC/DC Converters for Light Load Applications PDF
- DN97 - Flash Memory VPP Generator Reference Designs PDF
Regulated Step-Up Charge Pumps
| SortOrder | Part# | Number of Outputs | Vin (min) (V) | Vin (max) (V) | Output Current (typ) (A) | Output Voltage | Isupply (typ) (A) | Comments | Price (1000+) ($ US) |
|---|---|---|---|---|---|---|---|---|---|
| 1 | LTC3290 | 1 | 4.5 | 55 | 50m | 1V + Vin + Vaux | 15µ | High Voltage Boost Charge Pump | $2.33 (LTC3290EMSE#PBF) |
| 2 | LTC3265 | 2 | 4.5 | 32 | 50m | Adj, -Adj | 85µ | Low Noise Dual Supply with Boost and Inverting Charge Pumps | $3.80 (LTC3265EDHC#PBF) |
| 3 | LTC3221 | 1 | 1.8 | 5.5 | 60m | 3.3V, 5V, Adj | 8µ | Micropower, Regulated Charge Pump in 2 x 2 DFN | $1.60 (LTC3221EDC#TRPBF) |
| 4 | LTC3240 | 1 | 1.8 | 5.5 | 150m | 2.5V, 3.3V | 65µ | 3.3V/2.5V Step-Up/Step-Down Charge Pump DC/DC Converter | $1.60 (LTC3240EDC-2.5#TRPBF) |
| 5 | LTC3203 | 1 | 2.7 | 5.5 | 500m | 5V | 120µ | 500mA Output Current Low Noise Dual Mode Step-Up Charge Pumps | $2.00 (LTC3203BEDD#PBF) |
| 6 | LTC3201 | 1 | 2.7 | 4.5 | 100m | Adj | 4m | Ultralow Noise, White LED Driver | $1.90 (LTC3201EMS#PBF) |
| 7 | LTC3200 | 1 | 2.7 | 4.5 | 100m | 5V, Adj | 3.5m | Low Noise, Doubler/White LED Driver | $1.66 (LTC3200ES6-5#TRPBF) |
| 8 | LTC3202 | 1 | 2.7 | 4.5 | 125m | Adj | 2.5m | Low Noise, Fractional White LED Driver | $1.90 (LTC3202EMS#PBF) |
| 9 | LTC1928-5 | 1 | 2.7 | 4.4 | 30m | 5V | 190µ | Doubler with Internal LDO Linear Regulator, Low Noise | $1.76 (LTC1928ES6-5#TRPBF) |
| 10 | LTC1751-5 | 1 | 2 | 5.5 | 100m | 5V | 20µ | SD Disconnect | $2.25 (LTC1751EMS8-5#PBF) |
| 11 | LTC1751-3.3 | 1 | 2 | 5.5 | 100m | 3.3V | 20µ | SD Disconnect | $2.25 (LTC1751EMS8-3.3#PBF) |
| 12 | LTC1751 | 1 | 2 | 5.5 | 100m | Adj | 20µ | SD Disconnect | $2.25 (LTC1751EMS8#PBF) |
| 13 | LTC1555L-1.8 | 1 | 2.6 | 6.6 | 20m | 1.8V, 3V, 5V | 32µ | SIM Power Supply & Level Translator | $2.20 (LTC1555LEGN-1.8#PBF) |
| 14 | LTC1555L | 1 | 2.6 | 6.6 | 20m | 3V, 5V | 40µ | SIM Power Supply & Level Translator | $2.00 (LTC1555LEGN#PBF) |
| 15 | LTC1986 | 1 | 2.6 | 4.4 | 10m | 5V, Vin | 14µ | SIM Power Supply | $1.43 (LTC1986ES6#TRPBF) |
| 16 | LTC1755 | 1 | 2.7 | 6 | 60m | 3V, 5V | 60µ | Universal Smart Card Interface | $2.55 (LTC1755EGN#PBF) |
| 17 | LTC1754-5 | 1 | 2 | 4 | 40m | 5V | 13µ | SD Disconnect | $1.50 (LTC1754ES6-5#TRPBF) |
| 18 | LTC1754-3.3 | 1 | 2 | 4 | 40m | 3.3V | 13µ | SD Disconnect | $1.50 (LTC1754ES6-3.3#TRPBF) |
| 19 | LTC1682 | 1 | 1.8 | 4.4 | 50m | 3.3V, 5V, Adj | 150µ | 500µVPP Output Noise | $1.70 (LTC1682CS8#PBF) |
| 20 | LTC1502-3.3 | 1 | 900m | 1.8 | 10m | 3.3 | 40µ | Quadrupler, SD Disconnect | $1.75 (LTC1502CS8-3.3#PBF) |
| 21 | LTC1756 | 1 | 2.7 | 6 | 60m | 3V, 5V | 60µ | Universal Smart Card Interface | $2.30 (LTC1756EGN#PBF) |
| 22 | LTC1517-3.3 | 1 | 2.2 | 4.4 | 15m | 3.3V | 6µ | Micropower, Regulated 3.3V Charge Pump in a 5-Pin SOT-23 Package | $2.00 (LTC1517CS5-3.3#TRPBF) |
| 23 | LTC1556 | 1 | 2.7 | 10 | 20m | 5V | 60µ | SIM Power Supply & Level Translator | $3.35 (LTC1556CGN#PBF) |
| 24 | LTC1555 | 1 | 2.7 | 10 | 20m | 5V | 60µ | SIM Power Supply & Level Translator | $2.85 (LTC1555CGN#PBF) |
| 25 | LTC1522 | 1 | 2.7 | 5 | 20m | 5V | 6µ | SD Disconnect | $1.75 (LTC1522CS8#PBF) |
| 26 | LTC1517-5 | 1 | 2.7 | 5 | 20m | 5V | 6µ | Micropower, Regulated 5V Charge Pump in a 5-Pin SOT-23 Package | $2.00 (LTC1517CS5-5#TRPBF) |
| 27 | LTC1515 | 1 | 2.7 | 10 | 50m | 3.3V, 5V | 60µ | Step Up/Down Operation. Power On Reset | $3.50 (LTC1515CS8#PBF) |
| 28 | LTC1514 | 1 | 2.7 | 10 | 50m | 3.3, 5V | 60µ | Step Up/Down Operation. Low Battery Comparator | $3.50 (LTC1514CS8-3.3#PBF) |
| 29 | LTC1263 | 1 | 5 | 5 | 60m | 12V | 300µ | 12V ±5% Out. Good for Flash Memory | $3.30 (LTC1263CS8#PBF) |
| 30 | LTC1516 | 1 | 2 | 5 | 50m | 5V | 12µ | Doubler/Tripler. High Efficiency | $3.35 (LTC1516CS8#PBF) |
| 31 | LTC1262 | 1 | 5 | 5 | 30m | 12V | 500µ | 12V ±5% Out. Good for Flash Memory VPP | $2.15 (LTC1262CS8#PBF) |
| 32 | LT1054L | 1 | 3.5 | 7 | 125m | Adj | 2.5m | Charge Pump, Doubler or Inverter | $2.00 (LT1054LCS8#PBF) |
| 33 | LT1054 | 1 | 3.5 | 15 | 100m | Adj | 2.5m | Charge Pump, Doubler or Inverter | $2.65 (LT1054CN8#PBF) |
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