5V/12V/15V or Adjustable, High-Efficiency,
Low I
Q
, Step-Up DC-DC Controllers
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 5V, I
LOAD
= 0mA, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETERS
REF Load Regulation
REF Line Regulation
SYMBOL
CONDITIONS
0µA
≤
I
REF
≤
100µA
3V
≤
V+
≤
16.5V
MAX77_C
FB Trip-Point Voltage
V
FB
MAX77_E
MAX77_M
MAX77_C
FB Input Current
I
FB
MAX77_E
MAX77_M
SHDN Input High Voltage
SHDN Input Low Voltage
SHDN Input Current
LBI Input Current
LBI Hysteresis
LBI Delay
V
IH
V
IL
V+ = 2.0V to 16.5V
MAX77_C/E, V+ = 2.0V to 16.5V
MAX77_M, V+ = 2.0V to 16.5V
V+ = 16.5V, SHDN = 0V or V+
MAX773, V+ = 16.5V, LBI = 1.5V
MAX773
5mV overdrive
MAX77_C
LBI Threshold Voltage
MAX773, LBI falling
MAX77_E
MAX77_M
LBO Leakage Current
LBO Output Voltage Low
Current-Limit Trip Level
CS Input Current
EXT Rise Time
EXT Fall Time
Supply Voltage in
Shunt Mode
V
SHUNT
V+ = 5V, 1nF from EXT to ground (Note 3)
V+ = 5V, 1nF from EXT to ground (Note 3)
MAX773, I
SHUNT
= 1mA to 20mA,
SGND = 0V, C
SHUNT
= 0.1µF
5.5
V
OL
V
CS
MAX773, V+ = 16.5V, V
LBO
= 16.5V
MAX773, V+ = 5V, LBO sinking 1mA
V+ = 5V to 16.5V
170
1.4700
1.4625
1.4550
20
2.5
1.50
1.50
1.50
0.01
0.1
200
0.01
55
55
6.3
1.5300
1.5375
1.5450
1.00
0.4
230
±1
µA
V
mV
µA
ns
ns
V
V
1.6
0.4
0.2
±1
±20
1.4700
1.4625
1.4550
MAX77_C/E
MAX77_M
MIN
TYP
4
4
40
1.50
1.50
1.50
MAX
10
15
100
1.5300
1.5375
1.5450
±20
±40
±60
V
V
µA
nA
mV
µs
nA
V
UNITS
mV
µV/V
MAX770–MAX773
3
Note 1:
Output voltage guaranteed using preset voltages. See Figures 7a–7d for output current capability versus input voltage.
Note 2:
Output voltage line and load regulation depend on external circuit components.
Note 3:
For the MAX773, EXT is EXTH and EXTL shorted together.
_______________________________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
