MAX1966 データシートの表示（PDF） - Maxim Integrated
部品番号
コンポーネント説明
メーカー
MAX1966 Datasheet PDF : 15 Pages
| |||
Low-Cost Voltage-Mode PWM
Step-Down Controllers
ELECTRICAL CHARACTERISTICS (continued)
(VIN = VL = VCC = 5V (MAX1967), VIN = 5V (MAX1966), TA = -40°C to +85°C, unless otherwise noted. Typical values are at
TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
FB to COMP/EN
Transconductance
FB Input Bias Current
COMP/EN Source Current
Current-Limit Threshold Voltage
(Across Low-Side NFET)
-5µA < ICOMP/EN < 5µA
VFB = 0.880V
VCOMP/EN = 0
LX to GND
70
108
160
µS
3
100
nA
15
46
100
µA
-340 -305 -270 mV
MOSFET DRIVERS
Break-Before-Make Time
DH On-Resistance in Low State
DH On-Resistance in High State
DH Peak Source and Sink
Current
VBST = 5V, VLX = 0, IDH = -50mA
VBST = 5V, VLX = 0, IDH = 50mA
VBST = 5V, VLX = 0, DH = 2.5V
30
ns
1.6
4
Ω
2.5
5.5
Ω
1
A
DL On-Resistance in Low State
DL On-Resistance in High State
DL Source Current
DL Sink Current
IDL = -50mA
IDL = 50mA
VDL = 2.5V
VDL = 2.5V
1.1
2.5
Ω
2.5
5.5
Ω
1
A
2
A
Maximum Total (DH + DL)
Average Source Current
VBST = 5V, VLX = 0
25
mA
BST Leakage Current
LX Leakage Current
VBST = 33V, VLX = 28V
VBST = 33V, VLX = 28V
0
50
µA
33
100
µA
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
discharged to zero. In the MAX1967, the VL regulator remains on during thermal shutdown.
_______________________________________________________________________________________ 3
Share Link: 