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TC1301A_08 Datasheet, PDF (9/28 Pages) Microchip Technology – Dual LDO with Microcontroller RESET Function
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TC1301A/B
Note: Unless otherwise indicated, VIN = VR +1V, IOUT1 = IOUT2 = 100 µA, CIN = 4.7 µF, COUT1 = COUT2 = 1 µF (X5R or X7R),
CBYPASS = 0 pF, SHDN1 = SHDN2 > VIH. For the TC1301A, VDET = VOUT1, RESET = OPEN, TA = +25°C.
FIGURE 2-19:
Power Supply Rejection
Ratio vs. Frequency (without bypass capacitor).
10
1
VOUT2
VOUT1
0.1
0.01
VIN = 4.2V
VR1 = 2.8V
VR2=2.6V
IOUT1 = 150 mA
IOUT2 = 100 mA
CBYPASS = 10 nF
0.001
0.01 0.1
1
10
100
Frequency (KHz)
1000
FIGURE 2-22:
VOUT1 and VOUT2 Noise vs.
Frequency (with bypass capacitor).
FIGURE 2-20:
Power Supply Rejection
Ratio vs. Frequency (with bypass capacitor).
10
VOUT2
1
VIN = 4.2V
VR1 = 2.8V
0.1 VR2=2.6V
IOUT1 = 150 mA
IOUT2 = 100 mA
CBYPASS = 0 nF
0.01
0.01
0.1
1
10
Frequency (KHz)
VOUT1
100 1000
FIGURE 2-21:
VOUT1 and VOUT2 Noise vs.
Frequency (without bypass capacitor).
FIGURE 2-23:
VOUT1 and VOUT2 Power-up
from Shutdown TC1301B.
FIGURE 2-24:
VOUT2 Power-up from
Shutdown Input TC1301A.
© 2008 Microchip Technology Inc.
DS21798C-page 9
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