MAX1966 Maxim, MAX1966 Datasheet - Page 3

• Manufacturer Part Number: MAX1966
• Description: Low-Cost Voltage-Mode PWM Step-Down Controllers
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(VIN = VL = VCC = 5V (MAX1967), VIN = 5V (MAX1966), T
T
Note 1: Specifications to -40°C are guaranteed by design and not production tested.
Note 2: Thermal shutdown disables the buck regulator when the die reaches this temperature. Soft-start is reset and COMP/EN is
A
FB to COMP/EN
Transconductance
FB Input Bias Current
COMP/EN Source Current
Current-Limit Threshold Voltage
(Across Low-Side NFET)
MOSFET DRIVERS
Break-Before-Make Time
DH On-Resistance in Low State
DH On-Resistance in High State
DH Peak Source and Sink
Current
DL On-Resistance in Low State
DL On-Resistance in High State
DL Source Current
DL Sink Current
Maximum Total (DH + DL)
Average Source Current
BST Leakage Current
LX Leakage Current
= +25°C.)
discharged to zero. In the MAX1967, the VL regulator remains on during thermal shutdown.
PARAMETER
_______________________________________________________________________________________
SYMBOL
-5µA < I
V
V
LX to GND
V
V
V
I
I
V
V
V
V
V
DL
DL
FB
COMP/EN
BST
BST
BST
DL
DL
BST
BST
BST
Low-Cost Voltage-Mode PWM
= -50mA
= 50mA
= 0.880V
= 2.5V
= 2.5V
= 33V, V
= 33V, V
= 5V, V
= 5V, V
= 5V, V
= 5V, V
COMP/EN
= 0
LX
LX
LX
LX
A
LX
LX
CONDITIONS
= 0, I
= 0, I
= 0, DH = 2.5V
= 0
= -40°C to +85°C, unless otherwise noted. Typical values are at
= 28V
= 28V
< 5µA
DH
DH
Step-Down Controllers
= -50mA
= 50mA
-340
MIN
70
15
TYP
-305
108
1.6
2.5
1.1
2.5
46
30
25
33
3
1
1
2
0
MAX
-270
160
100
100
100
5.5
2.5
5.5
50
4
UNITS
mV
mA
µS
nA
µA
µA
µA
ns
A
A
A
3