Switched Capacitor Converters
Charge Pump circuits are used to generate higher voltages from low voltage inputs, using capacitors as storage elements. Thus a 5 V input can be used to generate a 10 V or even 15 V output. The provision of these higher voltages is critical in many low voltage applications such as notebook PCs, mobile phone cables and mobile phone display panels.
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PRODUCT SELECTION TABLES
Sw Capacitor Converters (Inductorless DC-DC Converters)
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Part#
Results: 7 | Product Description | Input Voltage (V) | Vout Preset (V) | Iout (mA) | Power Efficiency (%) | Supply Current | Shutdown Current, max | Boost | Inverter | Price* (1000 pcs.) |
|---|---|---|---|---|---|---|---|---|---|---|
| ADM660 | CMOS Switched-Capacitor Voltage Converter | 1.5 - 7 | -Vin or 2*Vin | 100 | 80 | 4.5mA | 5µA | Y | Y |
$ |
| ADM8660 | CMOS Switched-Capacitor Voltage Converter w/ Low Power Shutdown Pin | 1.5 - 7 | -Vin | 100 | 80 | 4.5mA | 5µA | --- | Y |
$ |
| ADM8828 | Switched Capacitor Voltage Inverter w/ Shutdown | 1.5 - 5.5 | -Vin | 25 | 99 | 1mA | 2µA | --- | Y |
$ |
| ADM8829 | Switched Capacitor Voltage Inverter | 1.5 - 5.5 | -Vin | 25 | 99 | 1mA | n/a | --- | Y |
$ |
| ADM8832 | Charge Pump Regulator for Color TFT Panels | 2.6 - 3.6 | +5.1/+15.3/-10.3 | 5/0.05/0.05 | 90 | 400µA | 1µA | Y | Y |
$ |
| ADM8839 | Charge Pump Regulator for Color TFT Panels | 2.6 - 3.6 | +5/+15/-15 | 8/0.15/0.15 | 82 | 500µA | 5µA | Y | Y |
$ |
| ADP3605 | 120 mA Switched Capacitor Voltage Inverter with Regulated Output | 3-6v | -3v/adj | 120 | n/a | 6mA | 15µA | --- | Y |
$ |
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back to topInductorless (Charge Pump) LED Drivers
| Part Number | Description | Vin (min) (V) | Vin (max) (V) | Vout (min) (V) | Vout (max) (V) | # of Strings | LEDs per String | Max Current per String (mA) | Boost Type | I2C Support | Pin/Package | Pricing ($@1k) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ADM8843 | PWM Parallel 4 WLED Driver | 2.6 | 5.5 | Vin | 5.5 | 4 | 1 | 20 | Charge Pump | No | LFCSP-16 | 0.5 |
| ADM8845 | PWM Parallel 6 WLED Driver | 2.6 | 5.5 | Vin | 5.5 | 6 | 1 | 30 | Charge Pump | No | LFCSP-16 | 0.71 |
| ADP8860 | Parallel 7 WLED Driver with ALS | 2.5 | 5.5 | 4.3 | 5.5 | 7 | 1 | 30 | Charge Pump | Yes | LFCSP-20; WLCSP-20 | 1.36 |
| ADP8861 | Parallel 7 WLED Driver | 2.5 | 5.5 | 4.3 | 5.5 | 7 | 1 | 30 | Charge Pump | Yes | LFCSP-20; WLCSP-20 | 1.22 |
| ADP8863 | Parallel 7 channel Fun Lighting LED Driver | 2.5 | 5.5 | 4.3 | 5.5 | 7 | 1 | 30 | Charge Pump | Yes | LFCSP-20; WLCSP-20 | 1.22 |
| ADP8866 | Charge Pump Driven 9-Channel LED Driver with Automated LED Lighting Effects | 2.5 | 5.5 | 4.3 | 5.5 | 9 | 1 | 25 | Charge Pump | Yes | LFCSP-20 | 1.48 |
| ADP8870 | Parallel 7 WLED Driver with ALS & cABC | 2.5 | 5.5 | 4.3 | 5.5 | 7 | 1 | 30 | Charge Pump | Yes | LFCSP-20; WLCSP-20 | 1.48 |
