FAN5660 Fairchild Semiconductor, FAN5660 Datasheet - Page 3

• Manufacturer Part Number: FAN5660
• Description: Monolithic Inductorless CMOS DC/DC Converter
• Manufacturer: Fairchild Semiconductor

Pin Definition
REV. 1.0.2 3/28/02
Number
Pin
1
2
3
4
5
6
7
8
Name
SYNC
CAP+
CAP-
VSS
VSH
Pin
FC
V+
LV
Frequency Control for Internal
Oscillator, FC open, f
typ; FC = V+, f
FC has no effect when SYNC pin is
driven externally
Charge-Pump Capacitor, Positive
Terminal
Power-Supply Ground Input
Charge-Pump Capacitor,
Negative Terminal
Output, Negative Voltage
Low-Voltage Operation Input.
Tie LV to VSS when input voltage is
less than 2V.
Above 2V, LV must be left open.
Oscillator Control Input.
An external Oscillator may be
connected to overdrive SYNC via a
2 to 5 nF capacitor.
SYNC shall not be connected to a
low impedance DC voltage
Power-Supply Positive Voltage
Input
Inverter
OSC
= 50kHz typ.
OSC
= 5kHz
Pin Function Description
Same as Inverter
Same as Inverter
Power-Supply
Positive Voltage Output
Same as Inverter
Power-Supply
Ground Input
LV must be left open for all
input voltages
Same as inverter, however,
do not use SYNC in
voltage-splitting mode.
Positive Voltage Input
Splitter
Same as Inverter
Same as Inverter
Power-Supply
Positive Voltage Input
Same as Inverter
Power-Supply
Ground Input
LV must be left open for
all input voltages
Same as inverter,
however, do not use
SYNC in voltage-
doubling mode.
Positive Voltage Output
Doubler
FAN5660
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