MNLM2940-12-X Datasheet, PDF (6/14 Pages) National Semiconductor (TI) – 1A LOW DROPOUT REGULATOR

MNLM2940-12-X REV 1A1
MICROCIRCUIT DATA SHEET
Electrical Characteristics
DC PARAMETERS:(Continued)
(The following conditions apply to all the following parameters, unless otherwise specified.)
DC: Vin = 17V, Io = 1A, Cout = 22uF
SYMBOL
Vdo
PARAMETER
Dropout Voltage
Io = 1A
CONDITIONS
Io = 100mA
Isc
Short Circuit
Vin = 17V
Current
NOTES
PIN-
NAME
MIN
0
0
0
0
1.6
1.3
MAX
0.7
UNIT
V
SUB-
GROUPS
1
1
V
2, 3
200
mV 1
300
mV 2, 3
A
1
A
2, 3
AC PARAMETERS:
(The following conditions apply to all the following parameters, unless otherwise specified.)
AC: Vin = 17V, Io = 1A, Cout = 22uF
Max Line
Vo < 13V, Ro = 100 Ohms, T = 20ms
1
40
Transient
Reverse Polarity T = 20ms, Ro = 100 Ohms
Input Voltage
Transient
1
-45
No
Output Noise
Vin = 17V, Io = 5mA, 10Hz = 100KHz
1
Voltage
0
1000
Zo
Output Impedance Vin = 17V, Io = 100mA DC and 20mA AC, 1
1
fo = 120Hz
RR
Ripple Rejection Vin = 17V, 1Vrms, f = 1KHz, Io = 5mA
1
52
1
46
Note 1: Functional test only.
V
7, 8A,
8B
V
7, 8A,
8B
uVrms 4, 5,
6
Ohm 4, 5,
6
dB 4
dB 5, 6
6