5V/3.3V or Adjustable, Low-Dropout,
Low I
Q
, 500mA Linear Regulators
MAX603/MAX604
__________________________________________Typical Operating Characteristics
(V
IN
= 7V for MAX603, V
IN
= 5.3V for MAX604, OFF = V
IN
, SET = GND, C
IN
= C
OUT
= 10µF, R
L
= 1kΩ, T
J
= +25°C, unless otherwise noted.)
OUTPUT VOLTAGE vs. LOAD CURRENT
MAX603/4-TOC-01
QUIESCENT CURRENT vs. LOAD CURRENT
MAX603/4-TOC-02
OUTPUT VOLTAGE AND
QUIESCENT CURRENT vs. SUPPLY VOLTAGE
MAX603, V
OUT
= 5V
22
20
MAX604, V
OUT
= 3.3V
3
2
1
0
MAX1603/4 TOC-03
1.01
NORMALIZED OUTPUT VOLTAGE
1.00
0.99
0.98
0.97
0.96
0.95
0.1
1
10
100
30
QUIESCENT CURRENT (µA)
25
20
15
10
5
0
MAX604, V
IN
= 5.3V, V
OUT
= 3.3V
MAX603, V
IN
= 12V, V
OUT
= 10V
MAX603, V
IN
= 7V, V
OUT
= 5V
6
5
OUTPUT VOLTAGE (V)
4
24
AX
I
Q
, M
I
Q
, MA
603
18
16
X604
14
12
10
V
OUT
= 3.3V, 5V, 10V
NORMALIZED TO
OUTPUT VOLTAGE
AT 1mA
700
UPWARD CURVE IS
THERMAL EFFECT
0.1
1
10
100
700
8
6
2
3
4
5
6
7
8
9
10 11 12
SUPPLY VOLTAGE (V)
LOAD CURRENT (mA)
LOAD CURRENT (mA)
OUTPUT VOLTAGE vs.
TEMPERATURE
MAX603/4-TOC-04
QUIESCENT CURRENT vs.
TEMPERATURE
MAX603/4-TOC-05
DROPOUT VOLTAGE vs. LOAD CURRENT
0.8
DROPOUT VOLTAGE (V)
0.7
0.6
0.5
0.4
0.3
0.2
0.1
S
R
D
N
(O
NORMALIZED OUTPUT VOLTAGE (%)
103
102
101
100
99
98
97
96
-55 -35 -15
5
25 45
QUIESCENT CURRENT (µA)
MAX603
20
15
MAX604
MAX604
V
OUT
= 3.3V
10
=
)
2
1.
Ω
(ON
MAX603
V
OUT
= 5V
0
)
=
.65
Ω
)
=
R
DS
5
N
R
DS(O
0.4
Ω
0
65 85 105 125
-55 -35 -15
5
25 45
65 85 105 125
TEMPERATURE (°C)
TEMPERATURE (°C)
0
0
100
200
MAX603, V
OUT
= 10V,
SET EXTERNALLY
300 400
500
600 700
LOAD CURRENT (mA)
10Hz TO 10kHz OUTPUT NOISE
LINE-TRANSIENT RESPONSE
OUTPUT NOISE (1mV/div)
A
B
MAX603
V
OUT
= 5V
10ms/div
MAX603
V
OUT
= 5V
t
R
= 10µs, t
F
= 70µs
2ms/div
A: V
IN
= 8V (HIGH), V
IN
= 7V (LOW)
B: OUTPUT VOLTAGE (50mV/div)
4
_______________________________________________________________________________________
MAX603/4-TOC-06
104
25
0.9
QUIESCENT CURRENT (µA)
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
