MAX649 Maxim, MAX649 Datasheet - Page 3

• Manufacturer Part Number: MAX649
• Description: 5V/3.3V/3V or Adjustable / High-Efficiency /
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(V+ = 5V, T
Output Voltage
Load Regulation
Efficiency
SHDN Input Current
SHDN Input Voltage High
SHDN Input Voltage Low
Current-Limit Trip
Level (V+ to CS)
CS Input Current
Switch Maximum
On-Time
Switch Minimum
Off-Time
EXT Rise Time
EXT Fall Time
PARAMETER
A
= T
MIN
5V/3.3V/3V or Adjustable, High-Efficiency,
to T
_______________________________________________________________________________________
MAX
SYMBOL
, unless otherwise noted. Typical values are at T
Low I
(max)
(min)
t
V
t
V
V
OFF
ON
CS
IH
IL
Circuit of
Figure 1
Circuit of
Figure 1
V+ = 16.5V, SHDN = 0V or V+
4V ≤ V+ ≤ 16.5V
4V ≤ V+ ≤ 16.5V
4V ≤ V+ ≤ 16.5V
4V ≤ V+ ≤ 16.5V
V+ = 12V
V+ = 12V
C
C
EXT
EXT
Q
= 0.001µF, V+ = 12V
= 0.001µF, V+ = 12V
, Step-Down DC-DC Controllers
CONDITIONS
MAX649, 0 ≤ I
V
MAX651, 0 ≤ I
V
MAX652, 0 ≤ I
V
MAX649, V+ = 10V,
I
MAX651, V+ = 5V,
I
MAX652, V+ = 5V,
I
LOAD
LOAD
LOAD
IN
IN
IN
= 10V
= 5V
= 5V
MAX649C/E, MAX65_C/E
MAX649M, MAX65_M
= 1A
= 1A
= 1A
LOAD
LOAD
LOAD
A
= +25°C.)
≤ 1.5A,
≤ 1.5A,
≤ 1.5A,
MIN
180
160
1.6
1.8
12
TYP
210
210
-47
-45
-45
2.3
92
89
88
16
50
50
MAX
240
260
0.4
2.8
±1
20
1
UNITS
mV/A
mV
µA
µA
µs
µs
ns
ns
%
V
V
3