AMC8877 Datasheet, PDF (4/9 Pages) List of Unclassifed Manufacturers – LOW NOISE 300mA LOW DROPOUT REGULATOR

AMC DOC. #: AMC8877_A (LF)
Jun 2004
AMC8877
LOW NOISE 300mA
LOW DROPOUT REGULATOR
RECOMMENDED OPERATING CONDITIONS
Parameter
Recommended Operating Conditions
Symbol
Min.
Typ.
Max. ^Units
Input Voltage
V_IN
2.5
6.5
V
Load Current
I_O
5
300
mA
Input Capacitor (V_IN to GND)
1.0
µF
Output Capacitor with ESR of 10Ω max., (V_OUT to GND)
1.0
µF
Note:
1. C_IN: A 1.0 µF capacitor (or larger) should be placed between V_IN to GND.
2. C_OUT: A 1.0 µF (or larger) capacitor is recommended between V_OUT and GND for stability and improving the regulator’s transient response. The
ESR (Effective Series Resistance.) of this capacitor has no effect on regulator stability, but low ESR capacitors improve high frequency transient
response. The value of this capacitor may be increased without limit, but values larger than 10uF tend to increase the settling time after a step
change in input voltage or output current. The part may oscillate without the capacitor. Any type of capacitor can be used, but not Aluminum
electrolytics when operating below -25 ^OC, The capacitance may be increased without limit.
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, these specifications apply over the operating ambient temperature of 0°C to +70 °C with
V_IN = V_OUT(NOMIAL) + 0.5V, and are for DC characteristics only. (Low duty cycle pulse testing techniques are used
which maintains junction and case temperatures equal to the ambient temperature.)
Parameter
Symbol
Test Conditions
AMC8877
Units
Min Typ. Max
Output Voltage Accuracy
∆V_OUT
I_OUT = 10mA, T_A = +25 ^OC
I_OUT = 10 to 300mA
-1.4
+1.4
%
-3
+2
Maximum Output Current
I_OUT
300
mA
Current Limit
I_LIMIT
330
mA
Ground Pin Current
I_OUT = 10mA
I_Q
I_OUT = 300mA
1.6 9
µA
1.7 9
I_OUT = 50mA
50 120
Dropout Voltage
VDROP ^IOUT ^{= 150mA}
165 300 mV
I_OUT = 300mA
450 650
Line Regulation
Load Regulation
Ripple Rejection
∆V_OI VIN = (VOUT + 0.1V) to 6.5V, IOUT = 1mA -0.15 0 0.15 %/V
∆V_OL IOUT = 10 to 300mA, COUT = 10µF
40 80 mV
PSRR ^{f=100Hz, IL=100uA}
50
dB
Output Voltage Noise
e_n
f = 10Hz - 100KHz, COUT = 10µF
C_BP = 0.01µF
C_OUT = 100µF
30
20
µV_RMS
Shutdown Input Threshold High V_SIH
Shutdown Input Threshold Low V_SIL
V_IN = 2.5V to 5.5V
V_IN = 2.5V to 5.5V
Shutdown Supply Current
I_Q(SHDN) V_OUT = 0V
Shutdown Input Bias Current
I_SHDN V_SHDN = V_IN
T_A = +25 ^OC
T_A = +85 ^OC
T_A = +25 ^OC
T_A = +85 ^OC
2.0
V
0.4 V
0.01 1
µA
0.2
0.01 100
nA
0.5
Shutdown Exit Delay
Thermal Shutdown Temperature
t_delay
T_SHDN
C_BP = 0.1µF,
T_A = +25 ^OC
C_OUT = 1µF, No load T_A = +85 ^OC
6
ms
6
+150
O_C
Note:
1. Current limit is measured at constant junction temperature, using pulse ON time.
2. Dropout is measured at constant junction temperature, using pulse ON time, and criterion is V_OUT inside target value ± 2 %.
3. Regulation is measured at constant junction temperature, using pulsed ON time.
Copyright © 2002, ADD Microtech Corp.
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