TC1221/TC1222
DS21367B-page 10 2002 Microchip Technology Inc.
5.0 TYPICAL CHARACTERISTICS (CONTINUED)
TC1222 Supply Current vs. Supply Voltage
250
500
750
1000
1250
1500
1750
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
5.5
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (µA)
C1 = C2 = C3 = 0.22µF,
RL = ∞, +25°C
TC1222 Output Resistance vs. Supply Voltage
35
40
45
50
55
60
65
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
OUTPUT RESISTANCE (Ohms)
SUPPLY VOLTAGE (V)
C1 = C2 = C3 = 0.22µF, +25°C
0
40
80
120
012345
160
TC1222 Output Voltage Ripple
vs. Capacitance , C
2
V
IN
= 5.0V
V
IN
= 3.3V
V
IN
= 3.3V, RL = 1K, +25°C
V
IN
= 5.0V, RL = 1K, +25°C
CAPACITANCE (µF)
OUTPUT VOLTAGE RIPPLE (mVp-p)
V
IN
= 5.0V
TC1222 Output Voltage Droop
vs. Capacitance, C
1
= C
2
V
IN
= 3.3V
100
150
200
250
300
350
400
450
500
01234
5
CAPACITANCE (µF)
OUTPUT VOLTAGE DROOP (mV)
V
IN
= 3.3V, RL = 1K, +25°C
V
IN
= 5.0V, RL = 1K, +25°C
500
550
600
650
700
750
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
OSCILLATOR FREQUENCY (kHz)
TC1222 Oscillator Frequency
vs. Supply Voltage
SUPPLY VOLTAGE (V)
C1 = C2 = C3 = 0.22µF,
RL = ∞, +25°C
