Datasheet

MAX1960/MAX1961/MAX1962
2.35V to 5.5V, 0.5% Accurate, 1MHz PWM
Step-Down Controllers with Voltage Margining
_______________________________________________________________________________________ 5
ELECTRICAL CHARACTERISTICS (continued)
(V
VCC
= 3.3V, Circuits of Figures 9–12, T
A
= -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETER CONDITIONS MIN TYP MAX UNITS
MAX1960/MAX1961, R
ILIM
= 160kΩ 90 125
Current-Limit Threshold (Negative
Direction, Adjustable, V
LX
- V
PGND
)
R
ILIM
= 400kΩ 245 296
mV
DH Gate-Driver On-Resistance V
BST
- V
LX
= 5V, pulling up or down 3.5 Ω
DL Gate-Driver On-Resistance (Pullup) DL high state 3.5 Ω
DL Gate-Driver On-Resistance (Pulldown) DL low state 1.6 Ω
Minimum high time 200
FSET/SYNC Pulse Width
Minimum low time 200
ns
FSET/SYNC Rise/Fall Time 100 ns
CTL_, FSET/SYNC, EN Input High Voltage V
VCC
= 2.35V to 5.5V 2.0 V
CTL_, FSET/SYNC, EN Input Low Voltage V
VCC
= 2.35V to 5.5V 0.8 V
CTL_, FSET/SYNC, EN Input Current -1 +1 µA
CLKOUT V
OL
Sinking 1mA 0.1 V
CLKOUT V
OH
Sourcing 1mA
V
VCC
-
0.2V
V
CLKOUT Rise/Fall Time C
LOAD
= 100pF 40 ns
Note 1: Guaranteed by design.
Note 2: Specifications at -40°C are guaranteed by design, and not production tested.