The XC6351A series is a charge pump voltage inverter IC with 4 built-in MOSFETs, which can generate highly efficient negative voltages with only 2 external capacitors connected, and GaAs bias power supplies & OpAmp's negative power supplies etc., can be easily accommodated on a standard PCB. A mini-molded, 6 pin, SOT-26 and USP-6B packages provides for space saving and makes high density mounting possible. Low power consumption and high efficiency make this series perfect for use with battery operated applications. Since the IC's operations stop when output is shutdown via the CE (chip enable) function, total power consumption reduction is possible in applications which use this IC.
The XC6351A Series IC integrates four MOSFETs and generates negative voltages with only two external capacitors, making it suitable for GaAs bias supplies, op‑amp negative supplies, cellular phones, PDAs and other battery‑operated devices. It is offered in compact SOT‑26 and USP‑6B packages and includes a Chip Enable (CE) function for power‑down control.
Typical specifications include an operating voltage range of 1.2 V to 5.0 V, oscillation frequencies of 120 kHz (typical) or 35 kHz (custom), low supply current (310 µA typ.) and standby current (2.0 µA max), with efficiencies up to 90 % and output impedance between 45 Ω and 90 Ω.
| Oscillation Frequency (typical) | 120 kHz |
|---|---|
| Oscillation Frequency (custom) | 35 kHz |
| Supply Current (typical) | 310 µA |
| Stand‑by Current (max) | 2.0 µA |
| Power Dissipation (USP‑6B) | 100 mW |
| Output Efficiency (typical) | 90 % |
| Output Impedance (RL＝5kΩ) | 45 Ω – 90 Ω |
| Maximum Output Current | 50 mA |
The IC is offered in SOT‑26 and USP‑6B surface‑mount packages.
The typical supply current is 310 µA.
The device can achieve up to 90 % efficiency under typical conditions.