Datasheet

MAX882/MAX883/MAX884
5V/3.3V or Adjustable, Low-Dropout,
Low I
Q
, 200mA Linear Regulators
4 _______________________________________________________________________________________
V
STBY
= V
IN
or 0
STBY signal falling
V
OFF
= V
IN
or 0
In on mode, SET = OUT,
6V < V
IN
< 11.5V
In off mode
In on mode,
SET = OUT, V
IN
<6V
10Hz to 10kHz, SET = OUT, R
L
= 1kΩ,
C
OUT
= 2.2µF
CONDITIONS
µV
RMS
250e
n
Output Noise (Note 7)
nA±0.01 ±50I
STBY
STBY Input Leakage Current
mV7∆V
STBY
V1.15 1.20 1.25V
STBY
STBY Threshold Voltage
STBY Hysteresis
nA±0.01 ±50I
OFF
OFF Input Leakage Current
V
3.0
OFF Threshold Voltage
0.4V
IL OFF
2.0
V
IH OFF
UNITSMIN TYP MAXSYMBOLPARAMETER
Note 1:Electrical specifications are measured by pulse testing and are guaranteed for a junction temperature (T
J
) within the operat-
ing temperature range, unless otherwise noted. When operating C- and E-grade parts up to a T
J
of +125°C, expect perfor-
mance similar to M-grade specifications. For T
J
between +125°C and +150°C, the output voltage may drift more.
Note 2:(V
IN
- V
OUT
) is limited to keep the product (I
OUT
x (V
IN
- V
OUT
)) from exceeding the package power dissipation limits. See
Figure 5. Therefore, the combination of high output current and high supply voltage is not tested. Output current at
T
J
= +125°C is guaranteed by guard banding tests at T
J
= +85°C and +70°C.
Note 3:Dropout Voltage is (V
IN
- V
OUT
) when V
OUT
falls to 100mV below its nominal value at V
IN
= (V
OUT
+ 2V). For example, the
MAX883 is tested by measuring the V
OUT
at V
IN
= 7V, then V
IN
is lowered until V
OUT
falls 100mV below the measured value.
The difference (V
IN
- V
OUT
) is then measured and defined as ∆V
DO
.
Note 4:Since standby mode inhibits the output but keeps all biasing circuitry alive, the Standby Quiescent Current is similar to the
normal operating quiescent current.
Note 5:Foldback Current Limit was characterized by pulse testing to remain below the maximum junction temperature (not
production tested).
Note 6:The Reverse-Current Protection Threshold is the output/input differential voltage (V
OUT
- V
IN
) at which reverse-current
protection switchover occurs and the pass transistor is turned off. See the section Reverse-Current Protection in the Detailed
Description.
Note 7:Noise is tested using a bandpass amplifier with two poles at 10Hz and two poles at 10kHz.
MAX882_A
MAX882_A
MAX882_A
MAX883_A,
MAX884_A
MAX883_A,
MAX884_A
MAX883_A,
MAX884_A
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= 6V (MAX883) or V
IN
= 4.3V (MAX882/MAX884), C
OUT
= 2.2µF, STBY or OFF = V
IN
, SET = GND, LBI = V
IN
, T
J
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
J
= +25°C.) (Note 1)