Datasheet

MAX1776
24V, 600mA Internal Switch, 100% Duty Cycle,
Step-Down Converter
6 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(Circuit of Figure 1, components from Table 3, V
IN
= +12V, SHDN = IN, T
A
= +25°C.)
15.0
16.0
15.5
17.0
16.5
17.5
18.0
-40 -20 0 20 40 60 80
QUIESCENT SUPPLY CURRENT
vs. TEMPERATURE
MAX1776 toc16
TEMPERATURE (
°
C)
QUIESCENT SUPPLY CURRENT (µA)
13.70
13.80
13.75
13.90
13.85
14.00
13.95
14.05
14.15
14.10
14.20
5 9 11 1371517192321 25
QUIESCENT SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX1776 toc17
SUPPLY VOLTAGE (V)
QUIESCENT SUPPLY CURRENT (µA)
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0 5 10 15 20 25
PEAK SWITCH CURRENT
vs. INPUT VOLTAGE, CIRCUIT 3, 0.3A
MAX1776 toc18
V
IN
(V)
PEAK SWITCH CURRENT (A)
L = 10
µ
H
L = 22
µ
H
L = 47
µ
H
L = 100
µ
H
LOAD-TRANSIENT RESPONSE,
CIRCUIT 5
MAX1776 toc19
I
LOAD
V
OUT
V
LX
0
1A
0
10V
10
µ
s/div
10mA
500mA
I
L
AC COUPLED
50mV/div
LINE-TRANSIENT RESPONSE,
CIRCUIT 5, I
LOAD
= 500mA
MAX1776 toc20
V
IN
V
OUT
V
LX
AC-COUPLED
200mv/div
5V
10V
200µs/div
0
5V
LINE-TRANSIENT RESPONSE,
CIRCUIT 5, I
LOAD
= 50mA
MAX1776 toc21
V
IN
V
OUT
V
LX
15V
10V
10V
200µs/div
0
5V
AC-COUPLED
200mv/div