TC1121 Microchip, TC1121 Datasheet - Page 4

• Manufacturer Part Number: TC1121
• Description: 100mA Charge Pump Voltage Converter with Shutdown
• Manufacturer: Microchip

TC1121
2.0
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
DS21358B-page 4
(8-Pin MSOP,
PDIP, SOIC)
Pin No.
1
2
3
4
5
6
7
8
PIN DESCRIPTIONS
PIN FUNCTION TABLE
Symbol
SHDN
CAP
CAP
GND
OUT
OSC
FC
V
+
+
–
Power-supply ground input.
Output, negative voltage.
Frequency control for internal oscillator, FC = open, F
typ; FC has no effect when OSC pin is driven externally.
Charge-pump capacitor, positive terminal.
Charge-pump capacitor, negative terminal.
Shutdown.
Oscillator control input. An external capacitor can be added to slow the oscillator. Take care to
minimize stray capacitance. An external oscillator also may be connected to overdrive OSC.
Power-supply positive voltage input.
Description
OSC
= 10kHz typ; FC = V
 2002 Microchip Technology Inc.
+
, F
OSC
= 200kHz