Datasheet

MAX882/MAX883/MAX884
5V/3.3V or Adjustable, Low-Dropout,
Low I
Q
, 200mA Linear Regulators
4 _______________________________________________________________________________________
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. Specifications to -40°C are guaranteed by design and not production tested.
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.
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.
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
= -40°C to
+85°C, unless otherwise noted. Typical values are at T
J
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
STBY Threshold Voltage V
STBY
STBY signal falling, MAX882_A 1.15 1.20 1.25 V
STBY Hysteresis ∆V
STBY
MAX882_A 7 mV
STBY Input Leakage Current I
STBY
V
STBY
= V
IN
or 0, MAX882_A ±0.01 ±50 nA
V
IL OFF
In off mode, MAX883_A, MAX884_A 0.4
In on mode, SET = OUT, V
IN
< 6V,
MAX883_A, MAX884_A
2.0
OFF Threshold Voltage
V
IH OFF
In on mode, SET = OUT, 6V < V
IN
< 11.5V,
MAX883_A, MAX884_A
3.0
V
OFF Input Leakage Current I
OFF
V
OFF
= V
IN
or 0 ±0.01 ±50 nA
Output Noise e
n
10Hz to 10kHz, SET = OUT, R
L
= 1kΩ,
C
OUT
= 2.2µF (Note 7)
250 µV
RMS