HT7660是什么？（关于其封装、引脚、作用等）

HT7660是什么？（关于其封装、引脚、作用等）

CMOS Switched-Capacitor Voltage Converter (DC-to-DC Voltage Converter )

8DIP或8SOIC封装

Pin Description:

Pin No. Pin Name I/O
Internal
Connection
Description
1 BOOST I
CMOS
Pull-low
Higher switching frequency selection input
2 CAP+ O CMOS
This pin is connected to the positive terminal of Capacitor
C1 for a charge pump
3 VSS _ _ Negative power supply, ground
4 CAP_ O NMOS
This pin is connected to the negative terminal of Capacitor
C1 for a charge pump
5 VOUT O NMOS
This pin is connected to the negative terminal of Capacitor
C2 for charge reservoir. Output voltage pass
through this pin
6 LV I _
Floating this pin enables the voltage regulator. Connect
this pin to VSS (Ground) to bypass voltage regulator
and improve low voltage operation
7 OSC I/O
Transmission
Gate
External clock input pin. This pin can be connected
with an external capacitor to reduce switching frequency
8 VDD _ _ Positive power supply

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