Datasheet
1 10 100 1000
OUTPUT VOLTAGE vs. LOAD CURRENT
MAX1793 toc01
LOAD CURRENT (mA)
OUTPUT VOLTAGE (V)
3.305
3.303
3.293
3.295
3.299
3.297
3.301
0
1.0
0.5
2.0
1.5
3.0
2.5
3.5
023145
OUTPUT VOLTAGE vs. INPUT VOLTAGE
MAX1793 toc02
INPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
I
OUT
= 0
I
OUT
= 1A
3.270
3.285
3.280
3.275
3.295
3.290
3.315
3.310
3.305
3.300
3.320
-40-200 20406080
OUTPUT VOLTAGE vs. TEMPERATURE
MAX1793 toc03
TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
I
OUT
= 250mA
0
50
150
100
200
250
023145
GROUND CURRENT vs. INPUT VOLTAGE
MAX1793 toc04
INPUT VOLTAGE (V)
GROUND CURRENT (µA)
I
OUT
= 0
I
OUT
= 1A
1 10 100 1000
GROUND CURRENT vs. LOAD CURRENT
MAX1793 toc05
LOAD CURRENT (mA)
GROUND CURRENT (µA)
250
225
200
175
150
0
75
50
25
125
100
110
140
130
120
160
150
200
190
180
170
210
-40 -20 0 20
TEMPERATURE (°C)
40 60 80
GROUND CURRENT vs. TEMPERATURE
MAX1793 toc06
GROUND CURRENT (µA)
I
OUT
= 250mA
I
OUT
= 0
Typical Operating Characteristics
(Circuit of Figure 2, V
IN
= +5V, V
SHDN
= V
IN
,V
OUT
= +3.3V, T
A
= +25°C, unless otherwise noted.)
MAX1793
Low-Dropout, Low I
Q
, 1A Linear Regulator
4 _______________________________________________________________________________________
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Operating Voltage Range for
RST Valid
I
SINK
= 10µA
1.0 5.5 V
RST Output High Leakage
V
RST
= +5.5V
1µA
RST Trip Level Referred to
Nominal V
OUT
Rising edge 90 96
% V
OUT
RST Release Delay Rising edge 1.5 8.0 ms
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= V
OUT(NOM)
+ 0.5V 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 in only meaningful when V
OUT(NOM)
≥2.5V. For V
OUT(NOM)
between 2.5V and 3.3V, use the following equations: Typical Dropout = 210mV + (3.3V - V
OUT(NOM)
x 75mV/V; Guaranteed
Maximum Dropout = 350mV + (3.3V - V
OUT(NOM)
x 125mV/V. For V
OUT(NOM)
> 3.3V: Typical Dropout = 210mV;
Guaranteed Maximum Dropout = 350mV.
Note 2: Specifications to T
A
= -40°C are guaranteed by design and not production tested.