MCP1726-3302E Datasheet, PDF (11/30 Pages) Microchip Technology – 1A, Low Voltage, Low Quiescent Current LDO Regulator

MCP1726
NOTE: Unless otherwise indicated, V_IN = V_OUT + 0.5V, I_OUT = 1 mA and T_A = +25°C.
80
70
60
50
40
30
20 C_OUT =10 µF
10 ^{CIN = 0 µF}
I_OUT = 100 mA
0
0.01
0.1
1
10
Frequency (kHz)
V_OUT = 2.5V
V_IN = 3.3V
100
1000
FIGURE 2-25:
Power Supply Ripple
Rejection (PSRR) vs. Frequency (V_OUT = 2.5V
Fixed).
V_OUT
SHDN
PWRGD
FIGURE 2-28:
Shutdown.
2.5V (Adj.) Startup from
80
70
60
50
40
30
20 C_OUT =22 µF
10 ^{CIN = 0 µF}
I_OUT = 100 mA
0
0.01
0.1
1
10
Frequency (kHz)
V_OUT = 2.5V
V_IN = 3.3V
100
1000
FIGURE 2-26:
Power Supply Ripple
Rejection (PSRR) vs. Frequency (V_OUT = 2.5V
Fixed).
V_OUT
V_IN
PWRGD
FIGURE 2-29:
Power Good (PWRGD)
Timing with C_BYPASS of 1000 pF.
V_OUT
V_IN
PWRGD
V_OUT
V_IN
PWRGD
FIGURE 2-27:
2.5V (Adj.) Startup from V_IN.
FIGURE 2-30:
Power Good (PWRGD)
Timing with C_BYPASS of 0.01 µF.
© 2007 Microchip Technology Inc.
DS21936C-page 11