Ht7660 7660 Inversor 5v A -5v Smd Soic8 Itytarg

Features
Simple conversion of VDD to VDD
Cascade connection (two devices are connected,
VOUT= 2 VDD)
Boost pin for higher switching frequency
Easy to use
Requires only two external capacitors
No external diode required
Typically with no load voltage conversion, 99.9% efficiency
Typical power efficiency is 98%
Wide operating voltage range: 3V to 12V
8-pin DIP/SOP package
Applications
RS-232 power supply
On board negative supply for dynamic RAMS
Supply voltage splitter, VO= VDD/2
Operation amplifier supply
Data acquisition systems
Positive voltage doubler

General Description
HT7660 is a monolithic CMOS switched-capacitor voltage converter. HT7660 is designed to complete a voltage conversion from positive to negative. The only
required external components are two low cost electrolytic capacitors.
HT7660 includes a voltage regulator, an RC oscillator
and four output power MOS switches. The frequency of
an RC oscillator can be lowered by adding an external
capacitor between VDD and the OSC pin, or an external
clock can be connected to the OSC pin to replace the
original oscillator. The LV terminal may be tied to VSS to
disable the voltage regulator. By doing this, low voltage
operation can be improved.

https://www.holtek.com.tw/documents/10179/11842/7660v111.pdf