Charge pumps (inductorless)
Smaller than an inductive solution, higher efficiency than an LDO
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Regulated
Larger efficiency gain over usable input range and lower ripple on the output
Unregulated
Simpler way to divide the input voltage by two and supports higher input voltage range
Technical resources
Charge pump circuit (–0.3V) for negative amplifier supply
Attenuator Amplifier Design to Maximize the Input Voltage of Differential ADCs
Pump it up quietly
Design & development resources
Evaluation Module for Step-Down Charge Pump TPS60500
The TPS60500EVM-193 is an evaluation tool for the high efficiency step-down charge pump TPS60500. The output voltage of the TPS60500 is adjustable in the range of 0.8 V to 3.3 V. On the EVM, the output voltage is set to 1.5 V. The TPS60500 operates from an input voltage of 1.8 V to 6.5 V. The (...)
Switched Capacitor Voltage Converter
The LM2661, LM2663, and LM2664 are part of a family of CMOS charge-pump voltage converters (Table 2). Each uses two small capacitors to achieve voltage inversion or voltage doubling without the cost, size, and EMI of inductor based converters. Each device has a shutdown feature and the LM2661 and (...)