Datasheet

1.0
-0.7
-0.8
-0.9
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0
00.20.1 0.3 0.4 0.5 0.6
LOAD REGULATION, CIRCUIT 5
MAX1776 toc04
I
LOAD
(A)
V
OUTPUT
(% FROM V
OUT(NOM)
)
V
IN
= 24V
V
IN
= 12V
V
IN
= 15V
-3
0
-1
-2
1
2
3
513117 9 15 17 19 21 23 25
V
OUTPUT
vs. V
IN
,
CIRCUIT 5, V
OUTPUT
= 5V
MAX1776 toc05
V
IN
(V)
V
OUTPUT
(%)
I
LOAD
= 1mA
I
LOAD
= 50mA
I
LOAD
= 500mA
-1.0
0.5
0
-0.5
1.0
1.5
2.0
513117 9 15 17 19 21 23 25
V
OUTPUT
vs. V
IN
,
CIRCUIT 5, V
OUTPUT
= 3.3V
MAX1776 toc06
V
IN
(V)
V
OUTPUT
(%)
I
LOAD
= 1mA
I
LOAD
= 10mA
I
LOAD
= 50mA
-1.2
-0.8
-1.0
-0.4
-0.6
0
-0.2
0.2
0 200 300100 400 500 600 700
LOAD REGULATION,
CIRCUIT 1, V
OUTPUT
= 5V
MAX1776 toc01
I
LOAD
(mA)
V
OUTPUT
(%)
V
IN
= 24V
V
IN
= 12V
V
IN
= 15V
-1.0
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0200100 300 400 500 600
LOAD REGULATION,
CIRCUIT 1, V
OUTPUT
= 3.3V
MAX1776 toc02
I
LOAD
(mA)
V
OUTPUT
(%)
V
IN
= 24V
V
IN
= 12V
V
IN
= 15V
V
IN
= 5V
-1.2
-1.0
-0.6
-0.8
-0.2
0
-0.4
0.2
0 100 15050 200 250 300 350 400
LOAD REGULATION, CIRCUIT 2
MAX1776 toc03
I
LOAD
(mA)
V
OUTPUT
(%)
V
IN
= 24V
V
IN
= 12V
V
IN
= 15V
Typical Operating Characteristics
(Circuit of Figure 1, components from Table 3, V
IN
= +12V, SHDN = IN, T
A
= +25°C.)
MAX1776
24V, 600mA Internal Switch, 100% Duty Cycle,
Step-Down Converter
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
IN
= +12V, SHDN = IN, T
A
= -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN MAX UNITS
LX Zero-Crossing Threshold -75 75 mV
LX Switch Leakage Current V
IN
= 24V, LX = GND 10 µA
Low 0.8
Digital Input Level SHDN, ILIM2
High 2.4
V
Digital Input Leakage Current V
SHDN
, V
ILIM
, V
ILIM2
= 0 or 24V, V
IN
= 24V -1 1 µA
Low 0.05
ILIM Input Level
High 2.2
V
Note 1: Specifications to -40°C are guaranteed by design, not production tested.