Datasheet

MAX1792
500mA Low-Dropout
Linear Regulator in µMAX
4
Maxim Integrated
0
1.0
0.5
2.0
1.5
3.0
2.5
3.5
2.0 3.0 3.52.5 4.0 4.5 5.0 5.5
OUTPUT VOLTAGE
vs. INPUT VOLTAGE
MAX1792-01
INPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
I
OUT
= 0A
I
OUT
= 500mA
3.27
3.28
3.29
3.30
3.31
3.32
3.33
0 200100 300 400 500 600 700 800
OUTPUT VOLTAGE
vs. LOAD CURRENT
MAX1792-02
LOAD CURRENT (mA)
OUTPUT VOLTAGE (V)
3.27
3.29
3.28
3.31
3.30
3.32
3.33
-40 10-15 35 60 85
OUTPUT VOLTAGE
vs. TEMPERATURE
MAX1792-03
TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
V
IN
= V
OUT
+ 500mV
I
OUT
= 0A
0
50
150
100
200
250
0 200 300100 400 500 600 700 800
DROPOUT VOLTAGE
vs. LOAD CURRENT
MAX1792-04
LOAD CURRENT (mA)
DROPOUT VOLTAGE (mV)
T
A
= +85°C
T
A
= -40°C
T
A
= +25°C
0
40
20
80
60
120
100
140
0 1.0 1.5 2.00.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5
GROUND-PIN CURRENT
vs. INPUT VOLTAGE
MAX1792-05
INPUT VOLTAGE (V)
GROUND-PIN CURRENT (μA)
I
OUT
= 500mA
I
OUT
= 0A
60
80
70
100
90
110
120
130
140
0 200 300100 400 500 600 700 800
GROUND-PIN CURRENT
vs. LOAD CURRENT
MAX1792-06
LOAD CURRENT (mA)
GROUND-PIN CURRENT (μA)
V
IN
= 5.5V
V
IN
= 3.8V
Typical Operating Characteristics
(MAX1792EUA33, V
IN
= V
OUT
+ 500mV, SHDN = IN, C
IN
= 1µF, C
OUT
= 3.3µF, T
A
= +25°C, unless otherwise noted.)
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= V
OUT(NOM)
+ 500mV, or V
IN
= +2.5V (whichever is greater), SHDN = IN, T
A
= -40°C to +85°C, unless otherwise noted.) (Note 2)
Note 1: Dropout voltage is defined as V
IN
- V
OUT
, when V
OUT
is 100mV below the value of V
OUT
measured when V
IN
= V
OUT(NOM)
+ 0.5V. Since the minimum input voltage is 2.5V, this specification is only meaningful when V
OUT(NOM)
≥ 2.5V. For V
OUT(NOM)
between 2.5V and 3.5V, use the following equations: Typical Dropout = -93mV/V

V
OUT(NOM)
+ 445mV; Guaranteed Maximum
Dropout = -137mV/V

V
OUT(NOM)
+ 704mV. For V
OUT(NOM)
≥ 3.5V: Typical Dropout = 120mV; Guaranteed Maximum Dropout
= 225mV.
Note 2: Specifications to -40°C are guaranteed by design, not production tested.
PARAMETER SYMBOL CONDITIONS MIN MAX UNITS
RESET OUTPUT
Reset Output Low Voltage V
OL
RST sinking 1mA 0.1 V
Operating Voltage Range for
Valid Reset
RST sinking 100μA 1.0 5.5 V
RST Output High Leakage
Current
V
RST
= +5.5V 100 nA
RST Threshold Rising edge, referred to V
OUT(NOMINAL)
90 96 %
RST Release Delay t
RP
Rising edge of OUT to rising edge of RST 1.5 8 ms